{"id":2411,"date":"2026-01-26T06:52:33","date_gmt":"2026-01-26T06:52:33","guid":{"rendered":"https:\/\/tractorptoshaft.net\/?post_type=product&p=2411"},"modified":"2026-01-26T07:14:17","modified_gmt":"2026-01-26T07:14:17","slug":"tractor-wide-angle-pto-shaft-for-sale","status":"publish","type":"product","link":"https:\/\/tractorptoshaft.net\/ro\/product\/arbore-cardanic-cu-unghi-larg-pentru-tractor-de-vanzare\/","title":{"rendered":"Arbore cardanic cu unghi larg pentru tractor de v\u00e2nzare"},"content":{"rendered":"
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If you have spent as much time in a tractor cab as I have\u2014or underneath one, wiping grease off your forehead while wondering why a U-joint decided to explode at 4:00 PM on a Friday\u2014you know the sound. That rhythmic, machine-gun “clack-clack-clack” when you turn too tight with a running PTO. That is the sound of your bank account draining. In my 18 years of analyzing drivetrain failures, I\u2019ve learned that while standard cardan shafts are fine for straight lines, the Arbore cardanic cu unghi larg al tractorului<\/strong> (sau arborele cu tura\u021bie constant\u0103\/CV) este singurul hardware serios pentru agricultura intensiv\u0103 modern\u0103.<\/p>\n

\"Componente<\/p>\n

Am v\u0103zut asta de nenum\u0103rate ori aici, \u00een laboratorul de inginerie: un fermier \u00eencearc\u0103 s\u0103 economiseasc\u0103 c\u00e2\u021biva euro prin utilizarea unui arbore standard pe o ma\u0219in\u0103 de erbicidat tractat\u0103 sau pe o pres\u0103 de balo\u021bi rotunzi. Rezultatul? Viteza neuniform\u0103 a unei \u00eembin\u0103ri standard la unghiuri mari creeaz\u0103 o frecven\u021b\u0103 de vibra\u021bii care fisureaz\u0103 carcasele cutiei de viteze \u0219i forfeceaz\u0103 arborii de intrare. Arbore cardanic cu unghi larg al tractorului<\/strong> solves this by using a double-cardan mechanism with a centering disc. It\u2019s not just “extra parts”; it\u2019s geometry working in your favor. It allows the input and output speeds to remain identical (constant velocity) even when you are craning your neck to watch the pickup reel on a 80-degree turn.<\/p>\n

(Most people don’t realize that a standard U-joint starts to fluctuate speed significantly past 25 degrees. A CV joint? It eats 80-degree turns for breakfast).<\/p>\n<\/div>\n

\n\n\n\n\n\n\n\n\n\n\n
Model<\/th>\nA (mm)<\/th>\nL (mm)<\/th>\nC (mm)<\/th>\nD (mm)<\/th>\nE (mm)<\/th>\nF (mm)<\/th>\nK (mm)<\/th>\nLungime (mm)<\/th>\nM (mm)<\/th>\nN (mm)<\/th>\n<\/tr>\n<\/thead>\n
40SA<\/td>\n23.8<\/td>\n91<\/td>\n27<\/td>\n74.5<\/td>\n27<\/td>\n74.5<\/td>\n145<\/td>\n102<\/td>\n181<\/td>\n131<\/td>\n<\/tr>\n
50SA<\/td>\n27<\/td>\n100<\/td>\n30.2<\/td>\n92<\/td>\n30.2<\/td>\n92<\/td>\n175<\/td>\n120<\/td>\n181<\/td>\n160<\/td>\n<\/tr>\n
62SA<\/td>\n27<\/td>\n94<\/td>\n32<\/td>\n76<\/td>\n32<\/td>\n76<\/td>\n166<\/td>\n105<\/td>\n211<\/td>\n160<\/td>\n<\/tr>\n
Anii '70 din SUA<\/td>\n30.2<\/td>\n106<\/td>\n35<\/td>\n106.3<\/td>\n35<\/td>\n106.3<\/td>\n190<\/td>\n127<\/td>\n211<\/td>\n165<\/td>\n<\/tr>\n
80SA<\/td>\n32<\/td>\n106<\/td>\n36<\/td>\n89<\/td>\n36<\/td>\n89<\/td>\n190<\/td>\n127<\/td>\n233<\/td>\n165<\/td>\n<\/tr>\n
82SA<\/td>\n35<\/td>\n118<\/td>\n39<\/td>\n94.5<\/td>\n39<\/td>\n95<\/td>\n195<\/td>\n138<\/td>\n240<\/td>\n165<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u203b Tubul este op\u021bional pentru client.<\/p>\n

C\u0103s\u0103toria nerostit\u0103: arborele planetar \u0219i cutia de viteze<\/h2>\n
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Iat\u0103 care e treaba cu v\u00e2nzarea de arbori care majoritatea furnizorilor<\/a> won’t tell you: the shaft is only half the equation. You can have the most expensive wide-angle driveline in the world, but if it\u2019s feeding into a gearbox with worn input bearings, you are fighting a losing battle. The Arbore cardanic cu unghi larg al tractorului<\/strong> ac\u021bioneaz\u0103 \u00eentr-o oarecare m\u0103sur\u0103 ca un amortizor de vibra\u021bii, dar func\u021bia sa principal\u0103 este de livrare a cuplului.<\/p>\n

In our experience, when a customer complains about a “whining” CV joint, 60% of the time, the issue is actually in the implement’s gearbox. The backlash (the play between gears) has become too great, and the rigid connection of the CV shaft highlights it. We provide matching cutii de viteze agricole<\/a> concepute pentru a gestiona sarcinile axiale specifice pe care arborii cu unghi larg le pot genera \u00een timpul extensiei.<\/p>\n

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Interfa\u021ba dintre fulia prizei de putere \u0219i canelura de intrare a cutiei de viteze trebuie s\u0103 fie impecabil\u0103. Pu\u021bin\u0103 rugin\u0103 sau o bavur\u0103 pe canelur\u0103 poate \u00eempiedica blocarea colierului de eliberare rapid\u0103. Dac\u0103 arborele respectiv zboar\u0103 la 540 RPM, este o catastrof\u0103. De aceea, proiect\u0103m arborii no\u0219tri de intrare a cutiei de viteze \u0219i colierele noastre prizei de putere conform standardelor ISO, cu verific\u0103ri stricte ale toleran\u021belor.<\/p>\n<\/div>\n

\"Cutie<\/div>\n<\/div>\n<\/div>\n

Case Study: The “Green Gold” of Friesland<\/h2>\n
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Provocarea<\/h3>\n

Loca\u0163ie:<\/strong> O mare firm\u0103 contractant\u0103 de produse lactate l\u00e2ng\u0103 Heerenveen, Friesland.
\nEchipament:<\/strong> Combina\u021bie de tripl\u0103 cositoare \u0219i un remorc\u0103 \u00eenc\u0103rc\u0103toare de mare tonaj (remorc\u0103 pentru siloz).<\/p>\n

The contractor was facing a recurring nightmare during the first grass cut of the season. The fields in this part of the Netherlands are often surrounded by drainage ditches (sloten), requiring tight 90-degree turns on the headlands. Their drivers were forgetting to disengage the PTO on the loader wagons during these turns. They were snapping the “ears” off standard U-joint yokes every 3 days. The downtime was costing them roughly \u20ac2,000 per hour during the peak harvest window.<\/p>\n

Solu\u021bia<\/h3>\n

We flew out (well, drove out\u2014it’s not that far) and assessed the damage. It was clear this was an application error, but you can’t always change the driver, so you have to upgrade the iron. We retrofitted their fleet with our Arbori cardanici cu unghi larg seria 8<\/strong> (omocinetic). Am ales articula\u021bia homocinetic\u0103 la 80\u00b0 pentru partea tractorului \u0219i un ambreiaj standard cu fric\u021biune pentru partea utilajului.<\/p>\n

Rezultatul<\/h3>\n

Since the installation two seasons ago, they haven’t broken a single yoke. The CV joint allows the drivers to keep the power engaged while turning around on the headland to pick up the next swath of grass. The fleet manager told me, “It’s the first time I can sleep during the harvest.” That\u2019s the kind of reliability we aim for.<\/p>\n<\/div>\n

\"Linie
\n\"Testarea
\n\"Arbore<\/div>\n

Piuli\u021bele \u0219i \u0219uruburile: Cum func\u021bioneaz\u0103 \u0219i specifica\u021bii<\/h2>\n
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Magia Arbore cardanic cu unghi larg al tractorului<\/strong> lies in the “centering disc” located between the two double yokes. This little mechanism ensures that the angle is split exactly evenly between the two joints. If the tractor turns 40 degrees relative to the implement, the centering disc forces each half of the CV joint to take exactly 20 degrees. This symmetry cancels out the speed fluctuations.<\/p>\n

Material-wise, we don’t mess around with mild steel. The yokes are forged from 20CrMnTi (a carburizing steel that gets extremely hard on the surface but stays tough in the core), and the cross kits are ground to micron-level tolerances.<\/p>\n

\n\n\n\n\n\n\n\n\n
Serie<\/th>\nPutere nominal\u0103 (540 RPM)<\/th>\nPutere nominal\u0103 (1000 RPM)<\/th>\nUnghi de contact maxim<\/th>\nUnghi maxim de durat\u0103 scurt\u0103<\/th>\n<\/tr>\n<\/thead>\n
Seria CV 4<\/strong><\/td>\n35 CP<\/td>\n55 CP<\/td>\n25\u00b0<\/td>\n80\u00b0<\/td>\n<\/tr>\n
Seria CV 6<\/strong><\/td>\n64 CP<\/td>\n100 CP<\/td>\n25\u00b0<\/td>\n80\u00b0<\/td>\n<\/tr>\n
Seria CV 8<\/strong><\/td>\n95 CP<\/td>\n145 CP<\/td>\n25\u00b0<\/td>\n80\u00b0<\/td>\n<\/tr>\n
CV Seria 10 (Greu)<\/strong><\/td>\n125 CP<\/td>\n190 CP<\/td>\n25\u00b0<\/td>\n80\u00b0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

*Note: “Continuous angle” refers to running all day. “Short duration” means turning at the headland. Don’t run at 80 degrees for an hour, or you’ll melt the grease!<\/p>\n<\/div>\n

Compatibilitatea m\u0103rcilor: Cum ne compar\u0103m<\/h2>\n
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Look, Walterscheid invented the wide-angle joint (the “WWE” series), and they are excellent. I respect their engineering immensely. But not every farmer needs a shaft that costs as much as a small car. We position our products as the high-performance alternative\u2014fully compatible, robust, but priced for the real world.<\/p>\n

\n\n\n\n\n\n\n\n\n
Caracteristic\u0103<\/th>\nMarc\u0103 german\u0103 premium<\/th>\nCheap “No-Name” Import<\/th>\nSeria CV Ever-Power<\/th>\n<\/tr>\n<\/thead>\n
Mecanism de centrare<\/strong><\/td>\nPlac\u0103 de mas\u0103 de precizie<\/td>\nTurnare brut\u0103 (Se uzeaz\u0103 rapid)<\/td>\nBil\u0103 de precizie c\u0103lit\u0103<\/strong><\/td>\n<\/tr>\n
Intervale de ungere<\/strong><\/td>\n50-60 de ore<\/td>\n8 ore (cu noroc)<\/td>\n8-10 ore (standard) \/ op\u021biune 50h<\/strong><\/td>\n<\/tr>\n
Profilul tubului<\/strong><\/td>\nL\u0103m\u00e2ie \/ Stea<\/td>\nTriunghiular cu pere\u021bi sub\u021biri<\/td>\nPerete gros, l\u0103m\u00e2ie\/triunghiular<\/strong><\/td>\n<\/tr>\n
Indicele pre\u021burilor<\/strong><\/td>\n100% (Ridicat)<\/td>\n30% (Sc\u0103zut)<\/td>\n60% (Cel mai bun raport calitate-pre\u021b)<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

Unde ar trebui s\u0103 utiliza\u021bi o arbore cardanic?<\/h2>\n
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Nu recomand arbori cu unghi larg pentru orice. Dac\u0103 ave\u021bi un distribuitor de \u00eengr\u0103\u0219\u0103minte purtat care r\u0103m\u00e2ne fix \u00een raport cu tractorul, un arbore cardanic este o risip\u0103 de bani. Dar pentru implementele tractate, este esen\u021bial.<\/p>\n