{"id":2423,"date":"2026-01-26T08:03:47","date_gmt":"2026-01-26T08:03:47","guid":{"rendered":"https:\/\/tractorptoshaft.net\/?post_type=product&#038;p=2423"},"modified":"2026-01-26T09:01:08","modified_gmt":"2026-01-26T09:01:08","slug":"21-spline-pto-shaft-for-high-torque-applications","status":"publish","type":"product","link":"https:\/\/tractorptoshaft.net\/el\/product\/\u03ac\u03be\u03bf\u03bd\u03b1\u03c2-pto-21-\u03b1\u03ba\u03af\u03b4\u03c9\u03bd-\u03b3\u03b9\u03b1-\u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2-\u03c5\u03c8\u03b7\u03bb\u03ae\u03c2-\u03c1\/","title":{"rendered":"\u0386\u03be\u03bf\u03bd\u03b1\u03c2 \u03b4\u03c5\u03bd\u03b1\u03bc\u03bf\u03b4\u03cc\u03c4\u03b7 21 \u03b1\u03c5\u03bb\u03b1\u03ba\u03ce\u03c3\u03b5\u03c9\u03bd \u03b3\u03b9\u03b1 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c1\u03bf\u03c0\u03ae\u03c2"},"content":{"rendered":"<div style=\"font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; color: #333; line-height: 1.8; font-size: 18px; max-width: 1200px; margin: 0 auto; padding: 20px;\">\n<p style=\"margin-bottom: 25px;\">When you have been in the driveline game as long as I have\u2014crawling under chassis from the peat colonies in Drenthe to the heavy clay polders of Flevoland\u2014you start to develop a sixth sense for mechanical stress. There is a distinct smell of hot metal and grease that tells you a farmer pushed his equipment too hard. Usually, the culprit isn&#8217;t the tractor engine; it\u2019s the link between the power and the implement. Today, we are talking about the heavy lifter of the industry: the <strong>\u0386\u03be\u03bf\u03bd\u03b1\u03c2 \u03b4\u03c5\u03bd\u03b1\u03bc\u03bf\u03b4\u03cc\u03c4\u03b7 21 \u03b1\u03c5\u03bb\u03b1\u03ba\u03ce\u03c3\u03b5\u03c9\u03bd \u03b3\u03b9\u03b1 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c1\u03bf\u03c0\u03ae\u03c2<\/strong>. Unlike its 6-spline little brother, which comfortably hums along at 540 RPM, the 21-spline shaft (typically 1 3\/8&#8243; diameter) is built for speed\u20141000 RPM to be exact\u2014and massive torque transfer.<\/p>\n<div style=\"margin: 35px 0; text-align: center;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; border: 1px solid #ddd; box-shadow: 0 4px 8px rgba(0,0,0,0.1); border-radius: 5px;\" src=\"https:\/\/tractorptoshaft.net\/wp-content\/uploads\/2026\/01\/PTO-Shaft-Exploded-View.webp\" alt=\"\u0391\u03bd\u03b1\u03bb\u03c5\u03c4\u03b9\u03ba\u03ae \u03ac\u03c0\u03bf\u03c8\u03b7 \u03b5\u03bd\u03cc\u03c2 \u03c3\u03c5\u03b3\u03ba\u03c1\u03bf\u03c4\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03ac\u03be\u03bf\u03bd\u03b1 \u03b4\u03c5\u03bd\u03b1\u03bc\u03bf\u03b4\u03cc\u03c4\u03b7 \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c1\u03bf\u03c0\u03ae\u03c2 21-spline\" title=\"\"><\/div>\n<p style=\"margin-bottom: 25px;\">Most operators don\u2019t realize that the shift from 6 splines to 21 splines isn&#8217;t just a random design choice. It is about surface area. When you are pushing 200+ horsepower through a steel rod, a 6-spline connection creates massive point-loading on each tooth. A <strong>\u0386\u03be\u03bf\u03bd\u03b1\u03c2 PTO 21-spline<\/strong> distributes that load across more teeth, reducing the &#8220;notch effect&#8221; that leads to shearing. In our experience at <a style=\"color: #e67e22; text-decoration: none; font-weight: bold;\" href=\"https:\/\/tractorptoshaft.net\/el\/\">\u03a0\u03ac\u03bd\u03c4\u03b1-\u0394\u03cd\u03bd\u03b1\u03bc\u03b7<\/a>, we often see failures not because the shaft broke, but because the splines stripped out due to poor hardening or improper fitment. It\u2019s a precision game. You can&#8217;t just hammer these things on; they need to glide. If you are forcing a 21-spline yoke, you\u2019ve already lost the battle against vibration.<\/p>\n<h2 style=\"color: #0056b3; font-size: 28px; margin-top: 40px; margin-bottom: 20px;\">\u039f \u0393\u03ac\u03bc\u03bf\u03c2 \u03c4\u03bf\u03c5 Gearbox: \u03a7\u03c1\u03b5\u03b9\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u0394\u03cd\u03bf \u03b3\u03b9\u03b1 \u03c4\u03bf \u03a4\u03ac\u03bd\u03b3\u03ba\u03bf<\/h2>\n<p style=\"margin-bottom: 25px;\">\u0399\u03b4\u03bf\u03cd \u03ad\u03bd\u03b1 \u03b5\u03bc\u03c0\u03bf\u03c1\u03b9\u03ba\u03cc \u03bc\u03c5\u03c3\u03c4\u03b9\u03ba\u03cc \u03c0\u03bf\u03c5 \u03b5\u03be\u03bf\u03b9\u03ba\u03bf\u03bd\u03bf\u03bc\u03b5\u03af \u03c3\u03c4\u03bf\u03c5\u03c2 \u03c0\u03b5\u03bb\u03ac\u03c4\u03b5\u03c2 \u03bc\u03b1\u03c2 \u03c7\u03b9\u03bb\u03b9\u03ac\u03b4\u03b5\u03c2 \u03b5\u03c5\u03c1\u03ce: \u039f \u03ac\u03be\u03bf\u03bd\u03b1\u03c2 PTO \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03cc\u03bd\u03bf \u03b7 \u03bc\u03b9\u03c3\u03ae \u03b5\u03be\u03af\u03c3\u03c9\u03c3\u03b7. \u03a4\u03bf \u03ac\u03bb\u03bb\u03bf \u03bc\u03b9\u03c3\u03cc \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf \u03b3\u03b5\u03c9\u03c1\u03b3\u03b9\u03ba\u03cc \u03ba\u03b9\u03b2\u03ce\u03c4\u03b9\u03bf \u03c4\u03b1\u03c7\u03c5\u03c4\u03ae\u03c4\u03c9\u03bd \u03c3\u03c4\u03bf \u03bf\u03c0\u03bf\u03af\u03bf \u03c3\u03c5\u03bd\u03b4\u03ad\u03b5\u03c4\u03b1\u03b9. \u0388\u03c7\u03bf\u03c5\u03bc\u03b5 \u03b4\u03b5\u03b9 \u03ac\u03b8\u03b9\u03ba\u03c4\u03bf\u03c5\u03c2 \u03ac\u03be\u03bf\u03bd\u03b5\u03c2 \u03bd\u03b1 \u03ba\u03b1\u03c4\u03b1\u03c3\u03c4\u03c1\u03ad\u03c6\u03bf\u03c5\u03bd \u03ba\u03b9\u03b2\u03ce\u03c4\u03b9\u03b1 \u03c4\u03b1\u03c7\u03c5\u03c4\u03ae\u03c4\u03c9\u03bd \u03ba\u03b1\u03b9 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03c1\u03bf\u03c6\u03b1. \u0393\u03b9\u03b1\u03c4\u03af; \u0391\u03c3\u03c5\u03bc\u03c6\u03c9\u03bd\u03af\u03b1 \u03bc\u03b5\u03c4\u03b1\u03bb\u03bb\u03bf\u03c5\u03c1\u03b3\u03af\u03b1\u03c2. \u0395\u03ac\u03bd \u03c4\u03bf <strong>\u0386\u03be\u03bf\u03bd\u03b1\u03c2 PTO 21-spline<\/strong> \u0395\u03ac\u03bd \u03bf \u03b6\u03c5\u03b3\u03cc\u03c2 \u03ad\u03c7\u03b5\u03b9 \u03c5\u03c0\u03bf\u03c3\u03c4\u03b5\u03af \u03b8\u03b5\u03c1\u03bc\u03b9\u03ba\u03ae \u03b5\u03c0\u03b5\u03be\u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1 \u03ad\u03c9\u03c2 60 HRC (\u03c3\u03ba\u03bb\u03b7\u03c1\u03cc\u03c4\u03b7\u03c4\u03b1 Rockwell) \u03ba\u03b1\u03b9 \u03bf \u03ac\u03be\u03bf\u03bd\u03b1\u03c2 \u03b5\u03b9\u03c3\u03cc\u03b4\u03bf\u03c5 \u03c4\u03bf\u03c5 \u03ba\u03b9\u03b2\u03c9\u03c4\u03af\u03bf\u03c5 \u03c4\u03b1\u03c7\u03c5\u03c4\u03ae\u03c4\u03c9\u03bd \u03c3\u03b1\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03b9\u03bf \u03bc\u03b1\u03bb\u03b1\u03ba\u03cc\u03c2, 40 HRC, \u03bf \u03ac\u03be\u03bf\u03bd\u03b1\u03c2 \u03b8\u03b1 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03ae\u03c3\u03b5\u03b9 \u03c3\u03b1\u03bd \u03bb\u03af\u03bc\u03b1, \u03c4\u03c1\u03ce\u03b3\u03bf\u03bd\u03c4\u03b1\u03c2 \u03b1\u03c1\u03b3\u03ac \u03c4\u03b9\u03c2 \u03b1\u03c5\u03bb\u03b1\u03ba\u03ce\u03c3\u03b5\u03b9\u03c2 \u03c4\u03bf\u03c5 \u03ba\u03b9\u03b2\u03c9\u03c4\u03af\u03bf\u03c5 \u03c4\u03b1\u03c7\u03c5\u03c4\u03ae\u03c4\u03c9\u03bd \u03bc\u03ad\u03c7\u03c1\u03b9 \u03bd\u03b1 \u03c3\u03c0\u03ac\u03c3\u03b5\u03b9 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03bc\u03b7\u03bd \u03ad\u03c7\u03b5\u03c4\u03b5 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7. \u0391\u03c5\u03c4\u03cc \u03b5\u03af\u03bd\u03b1\u03b9 \u03b9\u03b4\u03b9\u03b1\u03af\u03c4\u03b5\u03c1\u03b1 \u03c3\u03c5\u03bd\u03b7\u03b8\u03b9\u03c3\u03bc\u03ad\u03bd\u03bf \u03c3\u03b5 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u03bc\u03b5 \u03c5\u03c8\u03b7\u03bb\u03bf\u03cd\u03c2 \u03ba\u03c1\u03b1\u03b4\u03b1\u03c3\u03bc\u03bf\u03cd\u03c2, \u03cc\u03c0\u03c9\u03c2 \u03c7\u03bb\u03bf\u03bf\u03ba\u03bf\u03c0\u03c4\u03b9\u03ba\u03ac \u03bc\u03b5 \u03ba\u03b1\u03c4\u03b1\u03c0\u03b1\u03ba\u03c4\u03ae \u03ae \u03c6\u03c1\u03ad\u03b6\u03b5\u03c2.<\/p>\n<div style=\"margin: 35px 0; text-align: center;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; border-radius: 5px; border: 1px solid #ddd;\" src=\"https:\/\/tractorptoshaft.net\/wp-content\/uploads\/2026\/01\/agricultural-gearbox.webp\" alt=\"\u0393\u03b5\u03c9\u03c1\u03b3\u03b9\u03ba\u03cc \u03ba\u03b9\u03b2\u03ce\u03c4\u03b9\u03bf \u03c4\u03b1\u03c7\u03c5\u03c4\u03ae\u03c4\u03c9\u03bd \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7\u03c2 \u03c3\u03c5\u03bc\u03b2\u03b1\u03c4\u03cc \u03bc\u03b5 \u03b5\u03af\u03c3\u03bf\u03b4\u03bf 21 \u03b1\u03c5\u03bb\u03b1\u03ba\u03ce\u03c3\u03b5\u03c9\u03bd\" title=\"\"><\/div>\n<p style=\"margin-bottom: 25px;\">That is why we supply matched components. When we engineer a driveline solution, we ensure the yoke splines and the gearbox input shaft are chemically and thermally compatible. We use carburized 20CrMnTi steel for both interfaces. This creates a &#8220;wear-neutral&#8221; connection. The vibration dampening also plays a huge role here. A balanced 21-spline shaft running at 1000 RPM must be straight. If it whips even a few millimeters, that harmonic vibration travels straight into the gearbox seals, causing leaks and eventual bearing failure. We don&#8217;t just sell parts; we sell driveline integrity. You can read more about our holistic approach on our <a style=\"color: #e67e22; text-decoration: underline;\" href=\"https:\/\/tractorptoshaft.net\/el\/\u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac-\u03bc\u03b5-\u03b5\u03bc\u03ac\u03c2\/\">\u03a3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac \u03bc\u03b5 \u03b5\u03bc\u03ac\u03c2<\/a> \u03c3\u03b5\u03bb\u03af\u03b4\u03b1.<\/p>\n<h2 style=\"color: #0056b3; font-size: 28px; margin-top: 40px; margin-bottom: 20px;\">\u039c\u03b5\u03bb\u03ad\u03c4\u03b7 \u03c0\u03b5\u03c1\u03af\u03c0\u03c4\u03c9\u03c3\u03b7\u03c2: \u0397 \u03c3\u03c5\u03b3\u03ba\u03bf\u03bc\u03b9\u03b4\u03ae \u03b6\u03b1\u03c7\u03b1\u03c1\u03cc\u03c4\u03b5\u03c5\u03c4\u03bb\u03c9\u03bd \u03c3\u03c4\u03bf Emmeloord<\/h2>\n<p style=\"margin-bottom: 25px;\">\u0391\u03c2 \u03b4\u03bf\u03cd\u03bc\u03b5 \u03ad\u03bd\u03b1 \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03c3\u03b5\u03bd\u03ac\u03c1\u03b9\u03bf. \u03a0\u03c1\u03b9\u03bd \u03b1\u03c0\u03cc \u03b4\u03cd\u03bf \u03c7\u03c1\u03cc\u03bd\u03b9\u03b1, \u03bb\u03ac\u03b2\u03b1\u03bc\u03b5 \u03ad\u03bd\u03b1 \u03be\u03ad\u03c6\u03c1\u03b5\u03bd\u03bf \u03c4\u03b7\u03bb\u03b5\u03c6\u03ce\u03bd\u03b7\u03bc\u03b1 \u03b1\u03c0\u03cc \u03bc\u03b9\u03b1 \u03bc\u03b5\u03b3\u03ac\u03bb\u03b7 \u03b5\u03c1\u03b3\u03bf\u03bb\u03b1\u03b2\u03b9\u03ba\u03ae \u03b5\u03c4\u03b1\u03b9\u03c1\u03b5\u03af\u03b1 \u03ba\u03bf\u03bd\u03c4\u03ac \u03c3\u03c4\u03bf Emmeloord. \u0389\u03c4\u03b1\u03bd \u03b7 \u03ba\u03bf\u03c1\u03cd\u03c6\u03c9\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03c3\u03c5\u03b3\u03ba\u03bf\u03bc\u03b9\u03b4\u03ae\u03c2 \u03b6\u03b1\u03c7\u03b1\u03c1\u03cc\u03c4\u03b5\u03c5\u03c4\u03bb\u03c9\u03bd\u2014\u03bc\u03b9\u03b1 \u03b5\u03c0\u03bf\u03c7\u03ae \u03c0\u03bf\u03c5 \u03bf \u03c7\u03c1\u03cc\u03bd\u03bf\u03c2 \u03b4\u03b9\u03b1\u03ba\u03bf\u03c0\u03ae\u03c2 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1\u03c2 \u03ba\u03bf\u03c3\u03c4\u03af\u03b6\u03b5\u03b9 \u03ba\u03c5\u03c1\u03b9\u03bf\u03bb\u03b5\u03ba\u03c4\u03b9\u03ba\u03ac \u03b5\u03ba\u03b1\u03c4\u03bf\u03bd\u03c4\u03ac\u03b4\u03b5\u03c2 \u03b5\u03c5\u03c1\u03ce \u03c4\u03b7\u03bd \u03ce\u03c1\u03b1. \u039b\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03bf\u03cd\u03c3\u03b1\u03bd \u03bc\u03b9\u03b1 \u03bd\u03ad\u03b1, \u03c4\u03b5\u03c1\u03ac\u03c3\u03c4\u03b9\u03b1 \u03b8\u03b5\u03c1\u03b9\u03b6\u03bf\u03b1\u03bb\u03c9\u03bd\u03b9\u03c3\u03c4\u03b9\u03ba\u03ae \u03bc\u03b7\u03c7\u03b1\u03bd\u03ae 12 \u03c3\u03b5\u03b9\u03c1\u03ce\u03bd \u03c0\u03af\u03c3\u03c9 \u03b1\u03c0\u03cc \u03ad\u03bd\u03b1 Fendt 900 Vario. \u0397 \u03b8\u03b5\u03c1\u03b9\u03b6\u03bf\u03b1\u03bb\u03c9\u03bd\u03b9\u03c3\u03c4\u03b9\u03ba\u03ae \u03bc\u03b7\u03c7\u03b1\u03bd\u03ae \u03b1\u03c0\u03b1\u03b9\u03c4\u03bf\u03cd\u03c3\u03b5 1000 \u03c3\u03c4\u03c1\u03bf\u03c6\u03ad\u03c2 \u03b1\u03bd\u03ac \u03bb\u03b5\u03c0\u03c4\u03cc \u03bc\u03ad\u03c3\u03c9 \u03b5\u03bd\u03cc\u03c2... <strong>\u0386\u03be\u03bf\u03bd\u03b1\u03c2 PTO 21-spline<\/strong>\u03a4\u03bf \u03c0\u03c1\u03cc\u03b2\u03bb\u03b7\u03bc\u03b1; \u03a6\u03c5\u03c3\u03bf\u03cd\u03c3\u03b1\u03bd \u03bc\u03ad\u03c3\u03b1 \u03b1\u03c0\u03cc \u03ba\u03b9\u03c4 \u03b4\u03b9\u03b1\u03c3\u03c4\u03b1\u03c5\u03c1\u03bf\u03cd\u03bc\u03b5\u03bd\u03c9\u03bd \u03c3\u03c5\u03bd\u03b4\u03ad\u03c3\u03bc\u03c9\u03bd (U-joints) \u03ba\u03ac\u03b8\u03b5 40 \u03ce\u03c1\u03b5\u03c2. \u0397 \u03c3\u03c5\u03c3\u03c3\u03ce\u03c1\u03b5\u03c5\u03c3\u03b7 \u03b8\u03b5\u03c1\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03ae\u03c4\u03b1\u03bd \u03c4\u03cc\u03c3\u03bf \u03ad\u03bd\u03c4\u03bf\u03bd\u03b7 \u03c0\u03bf\u03c5 \u03c4\u03bf \u03b3\u03c1\u03ac\u03c3\u03bf \u03ad\u03b2\u03c1\u03b1\u03b6\u03b5 \u03ba\u03c5\u03c1\u03b9\u03bf\u03bb\u03b5\u03ba\u03c4\u03b9\u03ba\u03ac \u03b1\u03c0\u03cc \u03c4\u03b1 \u03ba\u03b1\u03c0\u03ac\u03ba\u03b9\u03b1.<\/p>\n<div style=\"float: right; width: 45%; margin-left: 20px; margin-bottom: 20px;\"><img decoding=\"async\" style=\"width: 100%; height: auto; border-radius: 5px;\" src=\"https:\/\/tractorptoshaft.net\/wp-content\/uploads\/2026\/01\/PTO-Shafts-factory3.webp\" alt=\"\u0395\u03c1\u03b3\u03bf\u03c3\u03c4\u03ac\u03c3\u03b9\u03bf \u03c0\u03bf\u03c5 \u03c0\u03b1\u03c1\u03ac\u03b3\u03b5\u03b9 \u03ac\u03be\u03bf\u03bd\u03b5\u03c2 PTO \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c1\u03bf\u03c0\u03ae\u03c2\" title=\"\"><\/div>\n<p style=\"margin-bottom: 25px;\">We drove out to the site. The issue wasn&#8217;t the torque rating of the shaft; it was the angle. The harvester drawbar geometry forced the shaft to operate at about 18 degrees continuously, with spikes to 30 degrees on headland turns. Standard U-joints create non-uniform velocity at those angles\u2014they speed up and slow down twice per revolution. At 1000 RPM, that\u2019s 2000 pulses of shock load per minute. No grease can survive that. We swapped their standard setup for a heavy-duty Constant Velocity (CV) 21-spline wide-angle shaft. The CV joint cancels out the velocity fluctuation. We also upgraded them to a high-temp synthetic grease. The result? They finished the rest of the season\u2014and the next one\u2014on the same shaft.<\/p>\n<h2 style=\"color: #0056b3; font-size: 28px; margin-top: 40px; margin-bottom: 20px;\">\u03a4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ad\u03c2 \u03c0\u03c1\u03bf\u03b4\u03b9\u03b1\u03b3\u03c1\u03b1\u03c6\u03ad\u03c2: \u03a4\u03b9 \u03ba\u03c1\u03cd\u03b2\u03b5\u03c4\u03b1\u03b9 \u03ba\u03ac\u03c4\u03c9 \u03b1\u03c0\u03cc \u03c4\u03bf \u03c7\u03c1\u03ce\u03bc\u03b1;<\/h2>\n<p style=\"margin-bottom: 25px;\">I always tell my apprentices: &#8220;Chrome don&#8217;t get you home.&#8221; It\u2019s what is inside that counts. For high-torque applications, material selection is non-negotiable. Our <strong>\u0386\u03be\u03bf\u03bd\u03b1\u03c2 PTO 21-spline<\/strong> \u0397 \u03c3\u03b5\u03b9\u03c1\u03ac \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b5\u03af \u03c3\u03c9\u03bb\u03ae\u03bd\u03b5\u03c2 \u03c8\u03c5\u03c7\u03c1\u03ae\u03c2 \u03ad\u03bb\u03b1\u03c3\u03b7\u03c2. \u0393\u03b9\u03b1\u03c4\u03af \u03c8\u03c5\u03c7\u03c1\u03ae\u03c2 \u03ad\u03bb\u03b1\u03c3\u03b7\u03c2; \u0395\u03c0\u03b5\u03b9\u03b4\u03ae \u03b5\u03c5\u03b8\u03c5\u03b3\u03c1\u03b1\u03bc\u03bc\u03af\u03b6\u03b5\u03b9 \u03c4\u03b7 \u03b4\u03bf\u03bc\u03ae \u03c4\u03c9\u03bd \u03ba\u03cc\u03ba\u03ba\u03c9\u03bd \u03c4\u03bf\u03c5 \u03c7\u03ac\u03bb\u03c5\u03b2\u03b1, \u03b1\u03c5\u03be\u03ac\u03bd\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b7 \u03c3\u03c4\u03c1\u03b5\u03c0\u03c4\u03b9\u03ba\u03ae \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03ba\u03b1\u03c4\u03ac \u03c0\u03b5\u03c1\u03af\u03c0\u03bf\u03c5 20% \u03c3\u03b5 \u03c3\u03cd\u03b3\u03ba\u03c1\u03b9\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03bf\u03c5\u03c2 \u03c3\u03c9\u03bb\u03ae\u03bd\u03b5\u03c2 \u03b8\u03b5\u03c1\u03bc\u03ae\u03c2 \u03ad\u03bb\u03b1\u03c3\u03b7\u03c2. \u03a4\u03bf \u03c0\u03c1\u03bf\u03c6\u03af\u03bb \u03ad\u03c7\u03b5\u03b9 \u03b5\u03c0\u03af\u03c3\u03b7\u03c2 \u03c3\u03b7\u03bc\u03b1\u03c3\u03af\u03b1. \u0395\u03bd\u03ce \u03c4\u03bf \u03c4\u03c1\u03b9\u03b3\u03c9\u03bd\u03b9\u03ba\u03cc \u03c0\u03c1\u03bf\u03c6\u03af\u03bb \u03b5\u03af\u03bd\u03b1\u03b9 \u03ba\u03bb\u03b1\u03c3\u03b9\u03ba\u03cc, \u03b3\u03b9\u03b1 \u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b5\u03c2 \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c1\u03bf\u03c0\u03ae\u03c2 1000 RPM, \u03c3\u03c5\u03c7\u03bd\u03ac \u03ba\u03bb\u03af\u03bd\u03bf\u03c5\u03bc\u03b5 \u03c0\u03c1\u03bf\u03c2 \u03c4\u03bf\u03c5\u03c2 \u03c3\u03c9\u03bb\u03ae\u03bd\u03b5\u03c2 \u03c0\u03c1\u03bf\u03c6\u03af\u03bb Star \u03ae Involute Spline \u03b5\u03c0\u03b5\u03b9\u03b4\u03ae \u03ad\u03c7\u03bf\u03c5\u03bd \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1 \u03b5\u03c0\u03b1\u03c6\u03ae\u03c2 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03bc\u03b5\u03c4\u03b1\u03b4\u03af\u03b4\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03c0\u03b5\u03c1\u03b9\u03c3\u03c4\u03c1\u03bf\u03c6\u03ae \u03c7\u03c9\u03c1\u03af\u03c2 \u03bd\u03b1 \u03c3\u03c4\u03c1\u03af\u03b2\u03bf\u03c5\u03bd.<\/p>\n<div style=\"overflow-x: auto;\">\n<table style=\"width: 100%; border-collapse: collapse; margin: 25px 0; background-color: #fff; box-shadow: 0 0 10px rgba(0,0,0,0.05);\">\n<thead>\n<tr style=\"background-color: #2c3e50; color: #fff;\">\n<th style=\"padding: 15px; border: 1px solid #ddd; text-align: left;\">\u03a4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ae \u03c0\u03b1\u03c1\u03ac\u03bc\u03b5\u03c4\u03c1\u03bf\u03c2<\/th>\n<th style=\"padding: 15px; border: 1px solid #ddd; text-align: left;\">\u03a4\u03c5\u03c0\u03b9\u03ba\u03cc\u03c2 \u03ac\u03be\u03bf\u03bd\u03b1\u03c2 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1\u03c2<\/th>\n<th style=\"padding: 15px; border: 1px solid #ddd; text-align: left;\">\u03a3\u03b5\u03b9\u03c1\u03ac \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c1\u03bf\u03c0\u03ae\u03c2 Ever-Power<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 15px; border: 1px solid #ddd; font-weight: bold;\">\u03a0\u03c1\u03cc\u03c4\u03c5\u03c0\u03bf Spline<\/td>\n<td style=\"padding: 15px; border: 1px solid #ddd;\">DIN 9611 (\u0388\u03bd\u03c4\u03c5\u03c0\u03bf 1)<\/td>\n<td style=\"padding: 15px; border: 1px solid #ddd;\">DIN 9611 (\u0391\u03ba\u03c1\u03af\u03b2\u03b5\u03b9\u03b1 \u039c\u03bf\u03c1\u03c6\u03ae\u03c2 2 &amp; 3)<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td style=\"padding: 15px; border: 1px solid #ddd; font-weight: bold;\">\u0392\u03b1\u03b8\u03bc\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 \u03c3\u03c4\u03c1\u03bf\u03c6\u03ce\u03bd<\/td>\n<td style=\"padding: 15px; border: 1px solid #ddd;\">540 \u03c3.\u03b1.\u03bb.<\/td>\n<td style=\"padding: 15px; border: 1px solid #ddd;\">1000 \u03c3\u03c4\u03c1\u03bf\u03c6\u03ad\u03c2\/\u03bb\u03b5\u03c0\u03c4\u03cc \u03c3\u03c5\u03bd\u03b5\u03c7\u03bf\u03cd\u03c2 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1\u03c2<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 15px; border: 1px solid #ddd; font-weight: bold;\">\u03a3\u03ba\u03bb\u03b7\u03c1\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c5\u03bb\u03b9\u03ba\u03bf\u03cd<\/td>\n<td style=\"padding: 15px; border: 1px solid #ddd;\">\u039c\u03cc\u03bd\u03bf \u03b5\u03c0\u03b9\u03c6\u03b1\u03bd\u03b5\u03b9\u03b1\u03ba\u03ae \u03b8\u03ae\u03ba\u03b7<\/td>\n<td style=\"padding: 15px; border: 1px solid #ddd;\">\u0392\u03b1\u03b8\u03b9\u03ac \u03b5\u03bd\u03b1\u03bd\u03b8\u03c1\u03ac\u03ba\u03c9\u03c3\u03b7 58-62 HRC<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td style=\"padding: 15px; border: 1px solid #ddd; font-weight: bold;\">\u0394\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ae \u03b5\u03be\u03b9\u03c3\u03bf\u03c1\u03c1\u03cc\u03c0\u03b7\u03c3\u03b7<\/td>\n<td style=\"padding: 15px; border: 1px solid #ddd;\">G16 (\u03a4\u03c1\u03b1\u03c7\u03cd)<\/td>\n<td style=\"padding: 15px; border: 1px solid #ddd;\">G6.3 (\u0395\u03c0\u03af\u03c0\u03b5\u03b4\u03bf \u03b1\u03ba\u03c1\u03b9\u03b2\u03b5\u03af\u03b1\u03c2 \u03bf\u03c1\u03b3\u03ac\u03bd\u03bf\u03c5)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 15px; border: 1px solid #ddd; font-weight: bold;\">\u039c\u03ad\u03b3\u03b9\u03c3\u03c4\u03b7 \u03c7\u03c9\u03c1\u03b7\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c1\u03bf\u03c0\u03ae\u03c2<\/td>\n<td style=\"padding: 15px; border: 1px solid #ddd;\">400 &#8211; 800 Nm<\/td>\n<td style=\"padding: 15px; border: 1px solid #ddd;\">1200 &#8211; 3500 Nm (Series 8+)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p style=\"margin-bottom: 25px;\">\u0388\u03bd\u03b1\u03c2 \u03ac\u03bb\u03bb\u03bf\u03c2 \u03ba\u03c1\u03af\u03c3\u03b9\u03bc\u03bf\u03c2 \u03c0\u03b1\u03c1\u03ac\u03b3\u03bf\u03bd\u03c4\u03b1\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03b9\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03b7\u03bb\u03b5\u03c3\u03ba\u03bf\u03c0\u03b9\u03ba\u03ae\u03c2 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2 \u03c5\u03c0\u03cc \u03c6\u03bf\u03c1\u03c4\u03af\u03bf. \u038c\u03c4\u03b1\u03bd \u03ad\u03bd\u03b1 \u03c4\u03c1\u03b1\u03ba\u03c4\u03ad\u03c1 \u03c0\u03b5\u03c1\u03bd\u03ac\u03b5\u03b9 \u03c0\u03ac\u03bd\u03c9 \u03b1\u03c0\u03cc \u03bc\u03b9\u03b1 \u03b1\u03bd\u03c9\u03bc\u03b1\u03bb\u03af\u03b1, \u03bf \u03ac\u03be\u03bf\u03bd\u03b1\u03c2 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b5\u03ba\u03c4\u03b1\u03b8\u03b5\u03af \u03ae \u03bd\u03b1 \u03c3\u03c5\u03bc\u03c0\u03b9\u03b5\u03c3\u03c4\u03b5\u03af. \u0395\u03ac\u03bd \u03b7 \u03c4\u03c1\u03b9\u03b2\u03ae \u03c3\u03c4\u03bf \u03b5\u03c3\u03c9\u03c4\u03b5\u03c1\u03b9\u03ba\u03cc \u03c4\u03bf\u03c5 \u03c3\u03c9\u03bb\u03ae\u03bd\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03bf\u03bb\u03cd \u03c5\u03c8\u03b7\u03bb\u03ae \u03bb\u03cc\u03b3\u03c9 \u03c4\u03b7\u03c2 \u03c1\u03bf\u03c0\u03ae\u03c2 \u03b1\u03c3\u03c6\u03ac\u03bb\u03b9\u03c3\u03b7\u03c2 (\u03cc\u03c0\u03bf\u03c5 \u03bf \u03c3\u03c9\u03bb\u03ae\u03bd\u03b1\u03c2 \u03c3\u03c4\u03c1\u03af\u03b2\u03b5\u03b9 \u03ba\u03b1\u03b9 \u03b4\u03ad\u03bd\u03b5\u03b9), \u03c4\u03bf \u03c6\u03bf\u03c1\u03c4\u03af\u03bf \u03ce\u03c3\u03b7\u03c2 \u03bc\u03b5\u03c4\u03b1\u03c6\u03ad\u03c1\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b1 \u03c1\u03bf\u03c5\u03bb\u03b5\u03bc\u03ac\u03bd. \u0395\u03c0\u03b9\u03ba\u03b1\u03bb\u03cd\u03c0\u03c4\u03bf\u03c5\u03bc\u03b5 \u03c4\u03bf\u03c5\u03c2 \u03b5\u03c3\u03c9\u03c4\u03b5\u03c1\u03b9\u03ba\u03bf\u03cd\u03c2 \u03c3\u03c9\u03bb\u03ae\u03bd\u03b5\u03c2 \u03bc\u03b1\u03c2 \u03bc\u03b5 \u03bc\u03b9\u03b1 \u03b5\u03be\u03b5\u03b9\u03b4\u03b9\u03ba\u03b5\u03c5\u03bc\u03ad\u03bd\u03b7 \u03b5\u03c0\u03af\u03c3\u03c4\u03c1\u03c9\u03c3\u03b7 \u03c6\u03c9\u03c3\u03c6\u03bf\u03c1\u03b9\u03ba\u03bf\u03cd \u03ac\u03bb\u03b1\u03c4\u03bf\u03c2 \u03c7\u03b1\u03bc\u03b7\u03bb\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03c3\u03bf\u03c5\u03bc\u03b5 \u03cc\u03c4\u03b9 \u03bf\u03bb\u03b9\u03c3\u03b8\u03b1\u03af\u03bd\u03bf\u03c5\u03bd \u03b1\u03ba\u03cc\u03bc\u03b1 \u03ba\u03b1\u03b9 \u03cc\u03c4\u03b1\u03bd \u03bc\u03b5\u03c4\u03b1\u03b4\u03af\u03b4\u03bf\u03c5\u03bd \u03bc\u03ad\u03b3\u03b9\u03c3\u03c4\u03b7 \u03b9\u03c0\u03c0\u03bf\u03b4\u03cd\u03bd\u03b1\u03bc\u03b7. \u0391\u03c5\u03c4\u03ad\u03c2 \u03bf\u03b9 \u03bc\u03b9\u03ba\u03c1\u03ad\u03c2 \u03bb\u03b5\u03c0\u03c4\u03bf\u03bc\u03ad\u03c1\u03b5\u03b9\u03b5\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03bf\u03c5 \u03c3\u03b1\u03c2 \u03ba\u03c1\u03b1\u03c4\u03bf\u03cd\u03bd \u03c3\u03b5 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1 \u03cc\u03c4\u03b1\u03bd \u03ac\u03bb\u03bb\u03bf\u03b9 \u03ad\u03c7\u03bf\u03c5\u03bd \u03ba\u03bf\u03bb\u03bb\u03ae\u03c3\u03b5\u03b9 \u03c3\u03c4\u03b7 \u03bb\u03ac\u03c3\u03c0\u03b7.<\/p>\n<h2 style=\"color: #0056b3; font-size: 28px; margin-top: 40px; margin-bottom: 20px;\">\u03a3\u03c5\u03bc\u03b2\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1 \u03bc\u03ac\u03c1\u03ba\u03b1\u03c2: \u0394\u03b1\u03b2\u03af\u03b4 \u03b5\u03bd\u03b1\u03bd\u03c4\u03af\u03bf\u03bd \u0393\u03bf\u03bb\u03b9\u03ac\u03b8;<\/h2>\n<p style=\"margin-bottom: 25px;\">\u03a3\u03c4\u03b7\u03bd \u039f\u03bb\u03bb\u03b1\u03bd\u03b4\u03af\u03b1, \u03b2\u03bb\u03ad\u03c0\u03b5\u03c4\u03b5 \u03c0\u03bf\u03bb\u03bb\u03ac \u03ba\u03af\u03c4\u03c1\u03b9\u03bd\u03b1 \u03c0\u03c1\u03bf\u03c3\u03c4\u03b1\u03c4\u03b5\u03c5\u03c4\u03b9\u03ba\u03ac Walterscheid \u03ba\u03b1\u03b9 \u03bc\u03b1\u03cd\u03c1\u03b1 \u03ac\u03be\u03bf\u03bd\u03b5\u03c2 Bondioli. \u0395\u03af\u03bd\u03b1\u03b9 \u03b5\u03be\u03b1\u03b9\u03c1\u03b5\u03c4\u03b9\u03ba\u03ac \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03b1, \u03b1\u03bd\u03b1\u03bc\u03c6\u03af\u03b2\u03bf\u03bb\u03b1. \u0391\u03bb\u03bb\u03ac \u03ad\u03c7\u03bf\u03c5\u03bc\u03b5 \u03b4\u03b9\u03b1\u03c0\u03b9\u03c3\u03c4\u03ce\u03c3\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03c0\u03bf\u03bb\u03bb\u03bf\u03af \u03b1\u03b3\u03c1\u03cc\u03c4\u03b5\u03c2 \u03c0\u03bb\u03b7\u03c1\u03ce\u03bd\u03bf\u03c5\u03bd \u03c5\u03c0\u03b5\u03c1\u03b2\u03bf\u03bb\u03b9\u03ba\u03ac \u03b3\u03b9\u03b1 \u03c4\u03bf \u03b5\u03bc\u03c0\u03bf\u03c1\u03b9\u03ba\u03cc \u03c3\u03ae\u03bc\u03b1, \u03b5\u03bd\u03ce \u03b1\u03b3\u03bf\u03c1\u03ac\u03b6\u03bf\u03c5\u03bd \u03b5\u03be\u03b1\u03c1\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1 \u03c4\u03c5\u03c0\u03b9\u03ba\u03ae\u03c2 \u03b2\u03b1\u03b8\u03bc\u03af\u03b4\u03b1\u03c2. <strong>\u0386\u03be\u03bf\u03bd\u03b1\u03c2 PTO 21-spline<\/strong> line is designed to be fully interchangeable with these major European series. We use the same cross-kit dimensions and tube profiles. This means if you bend a tube, you don&#8217;t necessarily need to buy a whole new Ever-Power system; our parts will likely fit your existing yoke (though we always recommend checking with calipers first).<\/p>\n<div style=\"margin: 35px 0; display: flex; flex-wrap: wrap; gap: 20px; justify-content: center;\"><img decoding=\"async\" style=\"width: 45%; min-width: 300px; height: auto; border: 1px solid #eee;\" src=\"https:\/\/tractorptoshaft.net\/wp-content\/uploads\/2026\/01\/drive-shafts.webp\" alt=\"\u0394\u03b9\u03ac\u03c6\u03bf\u03c1\u03b1 \u03bc\u03b5\u03b3\u03ad\u03b8\u03b7 \u03ac\u03be\u03bf\u03bd\u03c9\u03bd \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2 PTO \u03ad\u03c4\u03bf\u03b9\u03bc\u03b1 \u03b3\u03b9\u03b1 \u03b1\u03c0\u03bf\u03c3\u03c4\u03bf\u03bb\u03ae\" title=\"\"><br \/>\n<img decoding=\"async\" style=\"width: 45%; min-width: 300px; height: auto; border: 1px solid #eee;\" src=\"https:\/\/tractorptoshaft.net\/wp-content\/uploads\/2026\/01\/tractor-pto-shaft-company2.webp\" alt=\"\u0391\u03c0\u03bf\u03b8\u03ae\u03ba\u03b7 \u03b3\u03b5\u03bc\u03ac\u03c4\u03b7 \u03bc\u03b5 \u03ac\u03be\u03bf\u03bd\u03b5\u03c2 PTO\" title=\"\"><\/div>\n<div style=\"overflow-x: auto;\">\n<table style=\"width: 100%; border-collapse: collapse; margin: 25px 0; font-size: 16px;\">\n<thead>\n<tr style=\"background-color: #e67e22; color: #fff;\">\n<th style=\"padding: 12px; border: 1px solid #b35a00;\">\u0399\u03b4\u03b9\u03cc\u03c4\u03b7\u03c2<\/th>\n<th style=\"padding: 12px; border: 1px solid #b35a00;\">\u03a5\u03c8\u03b7\u03bb\u03ae \u03c1\u03bf\u03c0\u03ae \u03c0\u03b1\u03bd\u03c4\u03bf\u03c4\u03b9\u03bd\u03ae\u03c2 \u03b9\u03c3\u03c7\u03cd\u03bf\u03c2<\/th>\n<th style=\"padding: 12px; border: 1px solid #b35a00;\">\u03a3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03ad\u03c2 \u0395\u03c5\u03c1\u03c9\u03c0\u03b1\u03ca\u03ba\u03ad\u03c2 \u039c\u03ac\u03c1\u03ba\u03b5\u03c2 OEM<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\">\u03a3\u03c6\u03c5\u03c1\u03b7\u03bb\u03ac\u03c4\u03b7\u03c3\u03b7 \u03b6\u03c5\u03b3\u03bf\u03cd<\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">\u03a3\u03c6\u03c5\u03c1\u03ae\u03bb\u03b1\u03c4\u03bf \u03ba\u03cd\u03b2\u03bf \u03b1\u03ba\u03c1\u03b9\u03b2\u03b5\u03af\u03b1\u03c2<\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">\u03a3\u03c6\u03c5\u03c1\u03ae\u03bb\u03b1\u03c4\u03bf \u03ba\u03cd\u03b2\u03bf \u03b1\u03ba\u03c1\u03b9\u03b2\u03b5\u03af\u03b1\u03c2<\/td>\n<\/tr>\n<tr style=\"background-color: #fff8f0;\">\n<td style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\">\u03a6\u03c1\u03bf\u03c5\u03c1\u03cc\u03c2 \u0391\u03c3\u03c6\u03b1\u03bb\u03b5\u03af\u03b1\u03c2<\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">\u03a3\u03cd\u03c3\u03c4\u03b7\u03bc\u03b1 \u03bb\u03af\u03c0\u03b1\u03bd\u03c3\u03b7\u03c2 \u03b5\u03cd\u03ba\u03bf\u03bb\u03b7\u03c2 \u03c0\u03c1\u03cc\u03c3\u03b2\u03b1\u03c3\u03b7\u03c2<\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">\u03a3\u03c5\u03c7\u03bd\u03ac \u03b1\u03c0\u03b1\u03b9\u03c4\u03b5\u03af \u03b1\u03c0\u03bf\u03c3\u03c5\u03bd\u03b1\u03c1\u03bc\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7 \u03b3\u03b9\u03b1 \u03bb\u03af\u03c0\u03b1\u03bd\u03c3\u03b7<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\">\u0391\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03ba\u03cc\u03c3\u03c4\u03bf\u03c5\u03c2<\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">\u03a5\u03c8\u03b7\u03bb\u03ae \u0391\u03be\u03af\u03b1 (\u0391\u03c0\u03b5\u03c5\u03b8\u03b5\u03af\u03b1\u03c2 \u03b1\u03c0\u03cc \u03c4\u03bf \u0395\u03c1\u03b3\u03bf\u03c3\u03c4\u03ac\u03c3\u03b9\u03bf)<\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">\u03a5\u03c8\u03b7\u03bb\u03cc \u03a0\u03b5\u03c1\u03b9\u03b8\u03ce\u03c1\u03b9\u03bf (\u0394\u03af\u03ba\u03c4\u03c5\u03bf \u0391\u03bd\u03c4\u03b9\u03c0\u03c1\u03bf\u03c3\u03ce\u03c0\u03c9\u03bd)<\/td>\n<\/tr>\n<tr style=\"background-color: #fff8f0;\">\n<td style=\"padding: 12px; border: 1px solid #ddd; font-weight: bold;\">\u03a0\u03c1\u03bf\u03c3\u03b1\u03c1\u03bc\u03bf\u03c3\u03bc\u03ad\u03bd\u03b1 \u03bc\u03ae\u03ba\u03b7<\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">\u0394\u03b9\u03b1\u03b8\u03ad\u03c3\u03b9\u03bc\u03bf \u03ba\u03b1\u03c4\u03cc\u03c0\u03b9\u03bd \u03b1\u03b9\u03c4\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2<\/td>\n<td style=\"padding: 12px; border: 1px solid #ddd;\">\u03a3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 \u03bc\u03cc\u03bd\u03bf \u03c3\u03b5 \u03c4\u03c5\u03c0\u03b9\u03ba\u03ac \u03bc\u03ae\u03ba\u03b7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2 style=\"color: #0056b3; font-size: 28px; margin-top: 40px; margin-bottom: 20px;\">\u03a3\u03b5\u03bd\u03ac\u03c1\u03b9\u03b1: \u03a0\u03bf\u03cd \u03bb\u03ac\u03bc\u03c0\u03b5\u03b9 \u03c4\u03bf 21-Spline;<\/h2>\n<p style=\"margin-bottom: 25px;\">You won&#8217;t find these shafts on a little hay rake. The <strong>\u0386\u03be\u03bf\u03bd\u03b1\u03c2 PTO 21-spline<\/strong> \u03c0\u03c1\u03bf\u03bf\u03c1\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03c4\u03b1 \u03b8\u03b7\u03c1\u03af\u03b1 \u03c4\u03b7\u03c2 \u03c0\u03b5\u03b9\u03bd\u03b1\u03c3\u03bc\u03ad\u03bd\u03b7\u03c2 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7\u03c2. \u03a3\u03c4\u03bf \u03bf\u03bb\u03bb\u03b1\u03bd\u03b4\u03b9\u03ba\u03cc \u03c0\u03bb\u03b1\u03af\u03c3\u03b9\u03bf, \u03bc\u03b9\u03bb\u03ac\u03bc\u03b5 \u03b3\u03b9\u03b1:<\/p>\n<ul style=\"list-style-type: disc; margin-left: 20px; margin-bottom: 25px;\">\n<li style=\"margin-bottom: 10px;\"><strong>\u039c\u03b5\u03b3\u03ac\u03bb\u03b5\u03c2 \u03c4\u03b5\u03c4\u03c1\u03ac\u03b3\u03c9\u03bd\u03b5\u03c2 \u03c0\u03c1\u03ad\u03c3\u03b5\u03c2:<\/strong> \u0397 \u03b1\u03b4\u03c1\u03ac\u03bd\u03b5\u03b9\u03b1 \u03c4\u03bf\u03c5 \u03c3\u03c6\u03bf\u03bd\u03b4\u03cd\u03bb\u03bf\u03c5 \u03c3\u03b5 \u03b1\u03c5\u03c4\u03ac \u03c4\u03b1 \u03bc\u03b7\u03c7\u03b1\u03bd\u03ae\u03bc\u03b1\u03c4\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03b5\u03c1\u03ac\u03c3\u03c4\u03b9\u03b1. \u0397 \u03c1\u03bf\u03c0\u03ae \u03b5\u03ba\u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03bc\u03cc\u03bd\u03bf \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c3\u03c0\u03ac\u03c3\u03b5\u03b9 \u03ad\u03bd\u03b1\u03bd \u03bc\u03b9\u03ba\u03c1\u03cc\u03c4\u03b5\u03c1\u03bf \u03ac\u03be\u03bf\u03bd\u03b1.<\/li>\n<li style=\"margin-bottom: 10px;\"><strong>\u03a0\u03b5\u03c1\u03b9\u03c3\u03c4\u03c1\u03bf\u03c6\u03b9\u03ba\u03ad\u03c2 \u03c3\u03b2\u03ac\u03c1\u03bd\u03b5\u03c2 3+ \u03bc\u03ad\u03c4\u03c1\u03c9\u03bd:<\/strong> \u0397 \u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1 \u03c3\u03b5 \u03b2\u03b1\u03b8\u03b9\u03ac \u03b1\u03c1\u03b3\u03b9\u03bb\u03ce\u03b4\u03b7 \u03b5\u03b4\u03ac\u03c6\u03b7 \u03b1\u03c0\u03b1\u03b9\u03c4\u03b5\u03af \u03c3\u03c5\u03bd\u03b5\u03c0\u03ae \u03c0\u03b1\u03c1\u03bf\u03c7\u03ae \u03b9\u03c3\u03c7\u03cd\u03bf\u03c2 \u03c3\u03b5 \u03c5\u03c8\u03b7\u03bb\u03ad\u03c2 \u03c3\u03c4\u03c1\u03bf\u03c6\u03ad\u03c2.<\/li>\n<li style=\"margin-bottom: 10px;\"><strong>\u039c\u03b7\u03c7\u03b1\u03bd\u03ad\u03c2 \u03c3\u03c5\u03b3\u03ba\u03bf\u03bc\u03b9\u03b4\u03ae\u03c2 \u03b6\u03c9\u03bf\u03c4\u03c1\u03bf\u03c6\u03ce\u03bd:<\/strong> \u03a5\u03c8\u03b7\u03bb\u03ae \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7 \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03b5\u03b9 \u03c5\u03c8\u03b7\u03bb\u03ae \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7. \u0397 \u03b1\u03be\u03b9\u03bf\u03c0\u03b9\u03c3\u03c4\u03af\u03b1 \u03b5\u03b4\u03ce \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf \u03ba\u03bb\u03b5\u03b9\u03b4\u03af \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03ce\u03c0\u03b9\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03ba\u03b1\u03b9\u03c1\u03bf\u03cd.<\/li>\n<li style=\"margin-bottom: 10px;\"><strong>\u0392\u03c5\u03c4\u03af\u03b1 \u03c0\u03bf\u03bb\u03c4\u03bf\u03cd (\u0395\u03b3\u03c7\u03c5\u03c4\u03ae\u03c1\u03b5\u03c2):<\/strong> \u039f\u03b9 \u03b1\u03bd\u03c4\u03bb\u03af\u03b5\u03c2 \u03b1\u03c0\u03b1\u03b9\u03c4\u03bf\u03cd\u03bd \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ac \u03c5\u03c8\u03b7\u03bb\u03ae \u03c1\u03bf\u03c0\u03ae \u03c3\u03c4\u03c1\u03ad\u03c8\u03b7\u03c2 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c4\u03b7\u03c1\u03bf\u03cd\u03bd \u03c4\u03b7\u03bd \u03c0\u03af\u03b5\u03c3\u03b7 \u03c3\u03c4\u03bf\u03c5\u03c2 \u03b5\u03cd\u03ba\u03b1\u03bc\u03c0\u03c4\u03bf\u03c5\u03c2 \u03c3\u03c9\u03bb\u03ae\u03bd\u03b5\u03c2 \u03bf\u03c0\u03b9\u03c3\u03b8\u03ad\u03bb\u03ba\u03bf\u03c5\u03c3\u03b1\u03c2.<\/li>\n<\/ul>\n<h2 style=\"color: #0056b3; font-size: 28px; margin-top: 40px; margin-bottom: 20px;\">The &#8220;Old Master&#8221; Guide to Selection &amp; Installation<\/h2>\n<p style=\"margin-bottom: 25px;\">\u0388\u03c7\u03c9 \u03b4\u03b5\u03b9 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03b1 \u03c6\u03c1\u03ad\u03b1\u03c4\u03b1 \u03bd\u03b1 \u03ad\u03c7\u03bf\u03c5\u03bd \u03ba\u03b1\u03c4\u03b1\u03c3\u03c4\u03c1\u03b1\u03c6\u03b5\u03af \u03b1\u03c0\u03cc \u03c0\u03c1\u03b9\u03cc\u03bd\u03b9 \u03c0\u03b1\u03c1\u03ac \u03b1\u03c0\u03cc \u03c0\u03ad\u03c4\u03c1\u03b5\u03c2. \u038c\u03c4\u03b1\u03bd \u03b1\u03b3\u03bf\u03c1\u03ac\u03b6\u03b5\u03b9\u03c2 \u03ad\u03bd\u03b1 <strong>\u0386\u03be\u03bf\u03bd\u03b1\u03c2 PTO 21-spline<\/strong>, \u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 \u03ad\u03c1\u03c7\u03b5\u03c4\u03b1\u03b9 \u03bc\u03b1\u03ba\u03c1\u03cd\u03c4\u03b5\u03c1\u03bf \u03b1\u03c0\u03cc \u03cc\u03c3\u03bf \u03c7\u03c1\u03b5\u03b9\u03ac\u03b6\u03b5\u03c3\u03c4\u03b5. \u0391\u03c5\u03c4\u03cc \u03bf\u03c6\u03b5\u03af\u03bb\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7 \u03c3\u03c7\u03b5\u03b4\u03af\u03b1\u03c3\u03b7. \u0391\u03bb\u03bb\u03ac \u03b7 \u03c4\u03bf\u03c0\u03bf\u03b8\u03ad\u03c4\u03b7\u03c3\u03ae \u03c4\u03bf\u03c5 \u03b1\u03c0\u03b1\u03b9\u03c4\u03b5\u03af \u03c5\u03c0\u03bf\u03bc\u03bf\u03bd\u03ae. \u03a0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b1\u03b3\u03ba\u03b9\u03c3\u03c4\u03c1\u03ce\u03c3\u03b5\u03c4\u03b5 \u03c4\u03bf \u03c0\u03b1\u03c1\u03b5\u03bb\u03ba\u03cc\u03bc\u03b5\u03bd\u03bf \u03c3\u03c4\u03bf \u03c4\u03c1\u03b1\u03ba\u03c4\u03ad\u03c1 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b1\u03bd\u03b5\u03b2\u03ac\u03c3\u03b5\u03c4\u03b5\/\u03ba\u03b1\u03c4\u03b5\u03b2\u03ac\u03c3\u03b5\u03c4\u03b5 \u03c4\u03bf \u03ba\u03bf\u03c4\u03c3\u03b1\u03b4\u03cc\u03c1\u03bf \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b2\u03c1\u03b5\u03af\u03c4\u03b5 \u03c4\u03b7 \u03bc\u03b9\u03ba\u03c1\u03cc\u03c4\u03b5\u03c1\u03b7 \u03b4\u03c5\u03bd\u03b1\u03c4\u03ae \u03b1\u03c0\u03cc\u03c3\u03c4\u03b1\u03c3\u03b7 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03c9\u03bd \u03b1\u03ba\u03c1\u03bf\u03b4\u03b5\u03ba\u03c4\u03ce\u03bd \u03c4\u03bf\u03c5 \u03b4\u03c5\u03bd\u03b1\u03bc\u03bf\u03b4\u03cc\u03c4\u03b7.<\/p>\n<p style=\"margin-bottom: 25px;\">Here is the trick: The shaft, when fully compressed, must still have at least 25mm (1 inch) of &#8220;float&#8221; or free play. If it bottoms out, it becomes a solid rod and will shatter your tractor&#8217;s PTO housing. Conversely, when extended to the maximum, you need at least 1\/3 of the tube length overlapping. Less than that, and the tubes will deform under load. And please, deburr the cut edges! A burr inside the tube acts like a knife, scraping away your lubrication every time the shaft telescopes. <a style=\"color: #e67e22; font-weight: bold;\" href=\"https:\/\/tractorptoshaft.net\/el\/\u03b5\u03c0\u03b1\u03c6\u03ae\/\">\u0395\u03c0\u03b9\u03ba\u03bf\u03b9\u03bd\u03c9\u03bd\u03ae\u03c3\u03c4\u03b5 \u03bc\u03b5 \u03c4\u03b7\u03bd \u03bf\u03bc\u03ac\u03b4\u03b1 \u03c5\u03c0\u03bf\u03c3\u03c4\u03ae\u03c1\u03b9\u03be\u03ae\u03c2 \u03bc\u03b1\u03c2<\/a> \u0391\u03bd \u03b4\u03b5\u03bd \u03b5\u03af\u03c3\u03c4\u03b5 \u03c3\u03af\u03b3\u03bf\u03c5\u03c1\u03bf\u03b9 \u03b3\u03b9\u03b1 \u03c4\u03b9\u03c2 \u03bc\u03b5\u03c4\u03c1\u03ae\u03c3\u03b5\u03b9\u03c2, \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bc\u03b5 \u03bd\u03b1 \u03c3\u03b1\u03c2 \u03ba\u03b1\u03b8\u03bf\u03b4\u03b7\u03b3\u03ae\u03c3\u03bf\u03c5\u03bc\u03b5 \u03bc\u03ad\u03c3\u03c9 \u03b2\u03b9\u03bd\u03c4\u03b5\u03bf\u03ba\u03bb\u03ae\u03c3\u03b7\u03c2, \u03b5\u03c6\u03cc\u03c3\u03bf\u03bd \u03c7\u03c1\u03b5\u03b9\u03b1\u03c3\u03c4\u03b5\u03af.<\/p>\n<h2 style=\"color: #0056b3; font-size: 28px; margin-top: 40px; margin-bottom: 20px;\">\u03a3\u03c5\u03bc\u03b2\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1 \u039f\u03bb\u03bb\u03b1\u03bd\u03b4\u03b9\u03ba\u03ce\u03bd \u03a4\u03c1\u03b1\u03ba\u03c4\u03ad\u03c1<\/h2>\n<p style=\"margin-bottom: 25px;\">\u039f \u03bf\u03bb\u03bb\u03b1\u03bd\u03b4\u03b9\u03ba\u03cc\u03c2 \u03c3\u03c4\u03cc\u03bb\u03bf\u03c2 \u03b5\u03ba\u03c3\u03c5\u03b3\u03c7\u03c1\u03bf\u03bd\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03b3\u03bf\u03c1\u03b3\u03bf\u03cd\u03c2 \u03c1\u03c5\u03b8\u03bc\u03bf\u03cd\u03c2. \u039f\u03b9 \u03ac\u03be\u03bf\u03bd\u03ad\u03c2 \u03bc\u03b1\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b5\u03b9\u03b4\u03b9\u03ba\u03ac \u03b5\u03c0\u03b9\u03ba\u03c5\u03c1\u03c9\u03bc\u03ad\u03bd\u03b5\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03b3\u03b5\u03c9\u03bc\u03b5\u03c4\u03c1\u03af\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03b9\u03c2 \u03ba\u03b1\u03bc\u03c0\u03cd\u03bb\u03b5\u03c2 \u03c1\u03bf\u03c0\u03ae\u03c2 \u03c4\u03c9\u03bd \u03c4\u03c1\u03b1\u03ba\u03c4\u03ad\u03c1 \u03c0\u03bf\u03c5 \u03b2\u03bb\u03ad\u03c0\u03bf\u03c5\u03bc\u03b5 \u03c3\u03c5\u03c7\u03bd\u03cc\u03c4\u03b5\u03c1\u03b1 \u03c3\u03c4\u03b7\u03bd \u03c0\u03b5\u03c1\u03b9\u03bf\u03c7\u03ae \u03c4\u03b7\u03c2 \u039c\u03c0\u03b5\u03bd\u03b5\u03bb\u03bf\u03cd\u03be.<\/p>\n<p style=\"margin-bottom: 25px;\"><strong>Fendt 700\/800\/900 Vario Series:<\/strong> These are everywhere in Holland. They typically use the 1 3\/8&#8243; 21-spline stub for their 1000 RPM setting. Our shafts have the correct locking collar clearance for the Fendt shield.<\/p>\n<p><strong>John Deere 6R \/ 7R \/ 8R:<\/strong> \u03a4\u03b1 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b1 \u03c0\u03bb\u03b1\u03af\u03c3\u03b9\u03b1 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd \u03c4\u03b7\u03bd \u03ad\u03be\u03bf\u03b4\u03bf 21 \u03c3\u03c6\u03b7\u03bd\u03ce\u03bd \u03b3\u03b9\u03b1 \u03b2\u03b1\u03c1\u03b9\u03ad\u03c2 \u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b5\u03c2. \u0394\u03b9\u03b1\u03b8\u03ad\u03c4\u03bf\u03c5\u03bc\u03b5 \u03b5\u03b9\u03b4\u03b9\u03ba\u03bf\u03cd\u03c2 \u03b6\u03c5\u03b3\u03bf\u03cd\u03c2 \u03c0\u03bf\u03c5 \u03b1\u03c0\u03bf\u03bc\u03b1\u03ba\u03c1\u03cd\u03bd\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03ba\u03af\u03bd\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03c1\u03ac\u03b2\u03b4\u03bf\u03c5 \u03ad\u03bb\u03be\u03b7\u03c2 \u03c3\u03b5 \u03b1\u03c5\u03c4\u03ac \u03c4\u03b1 \u03bc\u03bf\u03bd\u03c4\u03ad\u03bb\u03b1.<\/p>\n<p><strong>\u039d\u03ad\u03b1 \u039f\u03bb\u03bb\u03b1\u03bd\u03b4\u03af\u03b1 T7 \/ T8:<\/strong> Known for their high-torque rise, these machines need a shaft that can handle the surge. Our &#8220;Series 8&#8221; equivalent is the perfect match.<\/p>\n<div style=\"margin: 35px 0; text-align: center;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; border-radius: 5px; box-shadow: 0 4px 8px rgba(0,0,0,0.1);\" src=\"https:\/\/tractorptoshaft.net\/wp-content\/uploads\/2026\/01\/PTO-Shafts-factory11.webp\" alt=\"\u0391\u03ba\u03c1\u03b9\u03b2\u03ae\u03c2 \u03ba\u03b1\u03c4\u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1 \u03b6\u03c5\u03b3\u03ce\u03bd PTO\" title=\"\"><\/div>\n<h2 style=\"color: #0056b3; font-size: 28px; margin-top: 40px; margin-bottom: 20px; border-top: 1px solid #ccc; padding-top: 20px;\">\u03a3\u03c5\u03bd\u03ae\u03b8\u03b5\u03b9\u03c2 \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03b1\u03c0\u03cc \u03c4\u03bf \u03c0\u03b5\u03b4\u03af\u03bf (FAQ)<\/h2>\n<div>\n<div style=\"margin-bottom: 25px; border-left: 4px solid #e67e22; padding-left: 20px;\">\n<h3 style=\"font-size: 20px; color: #333; margin: 0 0 10px 0;\">\u03a0\u03ce\u03c2 \u03bc\u03c0\u03bf\u03c1\u03ce \u03bd\u03b1 \u03ba\u03b1\u03c4\u03b1\u03bb\u03ac\u03b2\u03c9 \u03b1\u03bd \u03c7\u03c1\u03b5\u03b9\u03ac\u03b6\u03bf\u03bc\u03b1\u03b9 \u03ad\u03bd\u03b1\u03bd \u03ac\u03be\u03bf\u03bd\u03b1 PTO 6 \u03ae 21 \u03bf\u03b4\u03bf\u03bd\u03c4\u03c9\u03c4\u03ce\u03bd \u03c4\u03c1\u03bf\u03c7\u03ce\u03bd;<\/h3>\n<div>\n<div style=\"color: #555;\">\n<p>It is as simple as counting the teeth on your tractor&#8217;s output stub. 6 big teeth means 540 RPM (usually). 21 smaller teeth means 1000 RPM. Never try to use an adapter to step down a 1000 RPM tractor to a 540 implement\u2014you will turn that implement into shrapnel.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"margin-bottom: 25px; border-left: 4px solid #e67e22; padding-left: 20px;\">\n<h3 style=\"font-size: 20px; color: #333; margin: 0 0 10px 0;\">\u03a0\u03bf\u03b9\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03c4\u03b9\u03bc\u03ae \u03b5\u03bd\u03cc\u03c2 \u03ac\u03be\u03bf\u03bd\u03b1 \u03b4\u03c5\u03bd\u03b1\u03bc\u03bf\u03b4\u03cc\u03c4\u03b7 21-spline \u03c0\u03c1\u03bf\u03c3\u03b1\u03c1\u03bc\u03bf\u03c3\u03bc\u03ad\u03bd\u03bf\u03c5 \u03bc\u03ae\u03ba\u03bf\u03c5\u03c2 \u03c0\u03bf\u03c5 \u03c0\u03b1\u03c1\u03b1\u03b4\u03af\u03b4\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7\u03bd \u039f\u03bb\u03bb\u03b1\u03bd\u03b4\u03af\u03b1;<\/h3>\n<div>\n<div style=\"color: #555;\">\n<p>\u039f\u03b9 \u03c4\u03b9\u03bc\u03ad\u03c2 \u03c0\u03bf\u03b9\u03ba\u03af\u03bb\u03bb\u03bf\u03c5\u03bd \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03bc\u03b5 \u03c4\u03b7\u03bd \u03b9\u03c0\u03c0\u03bf\u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 (\u03a3\u03b5\u03b9\u03c1\u03ac) \u03ba\u03b1\u03b9 \u03c4\u03bf\u03bd \u03c4\u03cd\u03c0\u03bf \u03c4\u03bf\u03c5 \u03c3\u03c5\u03bc\u03c0\u03bb\u03ad\u03ba\u03c4\u03b7 (\u03c3\u03c5\u03bc\u03c0\u03bb\u03ad\u03ba\u03c4\u03b7\u03c2 \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7\u03c2 \u03ad\u03bd\u03b1\u03bd\u03c4\u03b9 \u03c3\u03c5\u03bc\u03c0\u03bb\u03ad\u03ba\u03c4\u03b7 \u03bc\u03b5 \u03ba\u03bf\u03c7\u03bb\u03af\u03b1 \u03b4\u03b9\u03ac\u03c4\u03bc\u03b7\u03c3\u03b7\u03c2). \u03a9\u03c3\u03c4\u03cc\u03c3\u03bf, \u03b3\u03b5\u03bd\u03b9\u03ba\u03ac \u03b5\u03af\u03bc\u03b1\u03c3\u03c4\u03b5 \u03c0\u03b9\u03bf \u03bf\u03b9\u03ba\u03bf\u03bd\u03bf\u03bc\u03b9\u03ba\u03bf\u03af \u03b1\u03c0\u03cc \u03c4\u03bf\u03c5\u03c2 \u03c4\u03bf\u03c0\u03b9\u03ba\u03bf\u03cd\u03c2 \u03b1\u03bd\u03c4\u03b9\u03c0\u03c1\u03bf\u03c3\u03ce\u03c0\u03bf\u03c5\u03c2 OEM. \u03a3\u03c4\u03b5\u03af\u03bb\u03c4\u03b5 \u03bc\u03b1\u03c2 \u03c4\u03b9\u03c2 \u03c0\u03c1\u03bf\u03b4\u03b9\u03b1\u03b3\u03c1\u03b1\u03c6\u03ad\u03c2 \u03c3\u03b1\u03c2 \u03b3\u03b9\u03b1 \u03bc\u03b9\u03b1 \u03ac\u03bc\u03b5\u03c3\u03b7 \u03c0\u03c1\u03bf\u03c3\u03c6\u03bf\u03c1\u03ac. \u0391\u03c0\u03bf\u03c3\u03c4\u03ad\u03bb\u03bb\u03bf\u03c5\u03bc\u03b5 \u03c3\u03c4\u03b7\u03bd \u039f\u03bb\u03bb\u03b1\u03bd\u03b4\u03af\u03b1 \u03ba\u03b1\u03b8\u03b7\u03bc\u03b5\u03c1\u03b9\u03bd\u03ac.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"margin-bottom: 25px; border-left: 4px solid #e67e22; padding-left: 20px;\">\n<h3 style=\"font-size: 20px; color: #333; margin: 0 0 10px 0;\">\u039c\u03c0\u03bf\u03c1\u03ce \u03bd\u03b1 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c9 \u03ad\u03bd\u03b1\u03bd \u03ac\u03be\u03bf\u03bd\u03b1 21 \u03b1\u03c5\u03bb\u03b1\u03ba\u03ce\u03c3\u03b5\u03c9\u03bd \u03c3\u03b5 \u03ad\u03bd\u03b1 \u03c3\u03c4\u03ad\u03bb\u03b5\u03c7\u03bf\u03c2 \u03b5\u03be\u03cc\u03b4\u03bf\u03c5 20 \u03b1\u03c5\u03bb\u03b1\u03ba\u03ce\u03c3\u03b5\u03c9\u03bd;<\/h3>\n<div>\n<div style=\"color: #555;\">\n<p>Absolutely not. 20-spline is a 1 3\/4&#8243; shaft usually found on very large articulation tractors (like older Case IH models). 21-spline is 1 3\/8&#8243;. They are different diameters and different tooth counts. Forcing them will damage the shaft and the tractor.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"margin-bottom: 25px; border-left: 4px solid #e67e22; padding-left: 20px;\">\n<h3 style=\"font-size: 20px; color: #333; margin: 0 0 10px 0;\">\u03a0\u03cc\u03c3\u03bf \u03c3\u03c5\u03c7\u03bd\u03ac \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03bb\u03b9\u03c0\u03b1\u03af\u03bd\u03c9 \u03ad\u03bd\u03b1\u03bd \u03ac\u03be\u03bf\u03bd\u03b1 PTO \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1\u03c2 1000 RPM;<\/h3>\n<div>\n<div style=\"color: #555;\">\n<p>At 1000 RPM, heat builds up fast. We recommend greasing the cross bearings every 8 hours of operation\u2014basically every morning before you start. Also, don&#8217;t forget to pull the shaft apart and grease the inner tubes every 20-30 hours to prevent sticking.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"margin-bottom: 25px; border-left: 4px solid #e67e22; padding-left: 20px;\">\n<h3 style=\"font-size: 20px; color: #333; margin: 0 0 10px 0;\">\u0393\u03b9\u03b1\u03c4\u03af \u03bf \u03bd\u03ad\u03bf\u03c2 \u03bc\u03bf\u03c5 \u03ac\u03be\u03bf\u03bd\u03b1\u03c2 21 \u03c3\u03c6\u03b7\u03bd\u03ce\u03bd \u03b4\u03bf\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03ad\u03bd\u03c4\u03bf\u03bd\u03b1 \u03c3\u03b5 \u03c0\u03bb\u03ae\u03c1\u03b7 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1;<\/h3>\n<div>\n<div style=\"color: #555;\">\n<p>Vibration at 1000 RPM is usually due to &#8220;phasing&#8221; issues (the yokes aren&#8217;t aligned) or operating at too steep an angle. Check that the U-joints on both ends are aligned in the same plane. If the angle is steep, you might need to upgrade to a Constant Velocity (CV) version.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"text-align: center; margin-top: 60px; padding: 40px; background-color: #f1f1f1; border-radius: 8px; border-bottom: 5px solid #e67e22;\">\n<h3 style=\"font-size: 26px; color: #2c3e50; margin-bottom: 15px;\">\u0395\u03af\u03c3\u03c4\u03b5 \u03ad\u03c4\u03bf\u03b9\u03bc\u03bf\u03b9 \u03bd\u03b1 \u03b1\u03bd\u03b1\u03b2\u03b1\u03b8\u03bc\u03af\u03c3\u03b5\u03c4\u03b5 \u03c4\u03b7 \u03b3\u03c1\u03b1\u03bc\u03bc\u03ae \u03bc\u03b5\u03c4\u03ac\u03b4\u03bf\u03c3\u03b7\u03c2 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2;<\/h3>\n<p style=\"font-size: 18px; margin-bottom: 30px; color: #555;\">Don&#8217;t let a snapped shaft ruin your harvest window. Get the reliability the pros use.<\/p>\n<p><a style=\"background-color: #e67e22; color: #fff; padding: 18px 45px; text-decoration: none; font-size: 22px; font-weight: bold; border-radius: 5px; box-shadow: 0 4px 10px rgba(0,0,0,0.15); transition: transform 0.2s;\" href=\"https:\/\/tractorptoshaft.net\/el\/\u03b5\u03c0\u03b1\u03c6\u03ae\/\">Take Action Now &#8211; Request a Quote<\/a><\/p>\n<p style=\"font-size: 14px; margin-top: 20px; color: #888;\">\u0395\u03be\u03c5\u03c0\u03b7\u03c1\u03b5\u03c4\u03bf\u03cd\u03bc\u03b5 \u03c4\u03b7\u03bd \u039f\u03bb\u03bb\u03b1\u03bd\u03b4\u03af\u03b1 \u03bc\u03b5 \u03b3\u03c1\u03ae\u03b3\u03bf\u03c1\u03b7 \u03ba\u03b1\u03b9 \u03ac\u03bc\u03b5\u03c3\u03b7 \u03b1\u03c0\u03bf\u03c3\u03c4\u03bf\u03bb\u03ae.<\/p>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>\u0391\u03c0\u03b5\u03bb\u03b5\u03c5\u03b8\u03b5\u03c1\u03ce\u03c3\u03c4\u03b5 \u03c4\u03bf \u03c0\u03bb\u03ae\u03c1\u03b5\u03c2 \u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03cc \u03c4\u03c9\u03bd \u03b2\u03b1\u03c1\u03ad\u03c9\u03bd \u03bc\u03b7\u03c7\u03b1\u03bd\u03b7\u03bc\u03ac\u03c4\u03c9\u03bd \u03c3\u03b1\u03c2 \u03bc\u03b5 \u03c4\u03bf\u03c5\u03c2 \u03ac\u03be\u03bf\u03bd\u03b5\u03c2 PTO 21-spline \u03bc\u03b5 \u03b1\u03ba\u03c1\u03b9\u03b2\u03ae \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ae. \u039a\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03bc\u03ad\u03bd\u03bf\u03b9 \u03b3\u03b9\u03b1 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c1\u03bf\u03c0\u03ae\u03c2 1000 \u03c3.\u03b1.\u03bb. \u03ba\u03b1\u03b9 \u03bf\u03bb\u03bb\u03b1\u03bd\u03b4\u03b9\u03ba\u03ad\u03c2 \u03b3\u03b5\u03c9\u03c1\u03b3\u03b9\u03ba\u03ad\u03c2 \u03c3\u03c5\u03bd\u03b8\u03ae\u03ba\u03b5\u03c2. \u039b\u03ac\u03b2\u03b5\u03c4\u03b5 \u03bc\u03b9\u03b1 \u03c0\u03c1\u03bf\u03c3\u03b1\u03c1\u03bc\u03bf\u03c3\u03bc\u03ad\u03bd\u03b7 \u03c0\u03c1\u03bf\u03c3\u03c6\u03bf\u03c1\u03ac \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd Ever-Power \u03c3\u03ae\u03bc\u03b5\u03c1\u03b1!<\/p>","protected":false},"featured_media":2442,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[4093],"product_tag":[4873,4875,4874],"class_list":{"0":"post-2423","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-tractor-pto-shafts","7":"product_tag-pto-shaft","8":"product_tag-pto-shaft-for-tractor","9":"product_tag-tractor-pto-shaft","11":"first","12":"instock","13":"shipping-taxable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/tractorptoshaft.net\/el\/wp-json\/wp\/v2\/product\/2423","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tractorptoshaft.net\/el\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/tractorptoshaft.net\/el\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/tractorptoshaft.net\/el\/wp-json\/wp\/v2\/comments?post=2423"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tractorptoshaft.net\/el\/wp-json\/wp\/v2\/media\/2442"}],"wp:attachment":[{"href":"https:\/\/tractorptoshaft.net\/el\/wp-json\/wp\/v2\/media?parent=2423"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/tractorptoshaft.net\/el\/wp-json\/wp\/v2\/product_brand?post=2423"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/tractorptoshaft.net\/el\/wp-json\/wp\/v2\/product_cat?post=2423"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/tractorptoshaft.net\/el\/wp-json\/wp\/v2\/product_tag?post=2423"}],"curies":[{"name":"\u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}