Forged PTO Yokes & Universal Joint Yokes
A PTO yoke transmits full power take-off torque through a universal joint that is constantly changing angle. Bearing bore alignment decides whether the joint runs smoothly or destroys its cross within a season.
- Bore Diameter
- 20 mm – 60 mm
- Materials
- EN8, EN19, 20MnCr5
- Bore Tolerance
- ±0.02 mm, coaxial
- Spline Standards
- ASAE, DIN, customer specific
- Hardness
- Induction hardened splines
- Applications
- Tractor PTO, cardan shafts, implements
Forged PTO Yokes & Universal Joint Yokes at a glance
Quotable facts from Avadh Techno Forge, Gundasara, Gondal, Rajkot.
- Bore Diameter: 20 mm – 60 mm
- Materials: EN8, EN19, 20MnCr5
- Bore Tolerance: ±0.02 mm, coaxial
- Spline Standards: ASAE, DIN, customer specific
- Hardness: Induction hardened splines
- Applications: Tractor PTO, cardan shafts, implements
Bore Alignment Is Everything
The two bearing bores must be coaxial and perpendicular to the shaft axis. Machined in a single dedicated setup, they hold that relationship; machined separately, they induce a bending moment on the cross that shortens joint life dramatically.
- Coaxial bearing bores, single setup
- Perpendicularity to shaft axis
- Hardened spline drive
- Balanced yoke arms
Spline Drive and Fit
Splines are cut or broached to standard and gauge verified so the yoke seats without rock on the shaft. A loose spline fit hammers itself oversize within a few hours of PTO running.
Yoke Arm Strength
Arms are forged with grain running along their length and a generous root fillet, because the arm root is where an overloaded yoke opens up under peak torque.
PTO Yoke Capability and Bore Alignment
A PTO yoke transmits full power take-off torque through a universal joint whose angle changes constantly. Bearing bore alignment decides whether the joint runs smoothly or destroys its cross within a season, so both bores are machined in a single dedicated setup.
| Parameter | Range |
|---|---|
| Bore diameter | 20 mm – 60 mm |
| Bore tolerance | ±0.02 mm, coaxial |
| Materials | EN8, EN19, 20MnCr5 |
| Spline standards | ASAE, DIN or customer specific |
| Hardening | Induction hardened splines |
| Applications | Tractor PTO, cardan shafts, implements |
Spline Fit and Arm Root Strength
Two details govern PTO yoke life. The spline must seat without rock on its shaft, because a loose spline hammers itself oversize within hours of running. And the arm root — where each arm meets the yoke body — carries the bending moment when the joint is loaded at an angle, which is why arms are forged with grain running along their length and a generous root fillet. Splines are cut or broached to standard and gauge verified before dispatch.
Topics covered on this page
- PTO yoke manufacturer India
- universal joint yoke forging
- cardan yoke supplier Rajkot
- tractor PTO forging India
Based on work carried out at our own forging plant at Gundasara, Gondal, Rajkot — operating since 2008.
Questions Answered
Do you supply complete universal joint assemblies?
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We supply forged and machined yokes; cross and bearing kit assembly can be arranged on request.
What spline standards do you produce?
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ASAE, DIN and customer-specific profiles, all gauge verified before dispatch.
How do you ensure bore alignment?
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Both bearing bores are machined in one dedicated setup so coaxiality and perpendicularity are inherent, not corrected afterwards.
Are yokes supplied hardened?
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Splines and wear areas are induction hardened; arms retain a tough core.