G4 PTO Drive Shaft – Wide Angle CV Joint Cardan Shaft

80° Wide Angle CV Joint

The G Series CV joint allows operation at angles up to 80 degrees at the tractor end — more than three times the 25-degree limit of standard T, L, and S Series cardan joints. This enables G Series shafts in front-mounted implement drives, close-coupled mounts, and any application where the shaft angle regularly exceeds the standard cardan limit.

Constant Velocity Output

Standard cardan joints produce a sinusoidal speed variation at the output — the output shaft rotates faster then slower with each revolution, proportional to the operating angle. The G Series CV joint eliminates this variation, delivering perfectly constant-velocity output at any angle up to 80 degrees. This prevents vibration and eliminates implement gearbox acceleration fatigue.

Sealed Cross-Kit Bearings — IP67

Double-lip sealed needle-roller cross-kit bearing cups at the implement end, factory-filled with EP2 lithium complex grease. Grease nipple accessible with shield in place. Rated for 350+ hours between maintenance interventions under normal field conditions.

CE Safety Shield — Standard

CE-marked UV-stabilised HDPE bellows guard. CV joint end fitted with a flexible boot that accommodates the full 80-degree joint movement while protecting the CV joint grease cavity from contamination. OECD Code 4 compliant. Included as standard with every G Series unit.

Forged 20CrMnTi Steel Yokes

Drop-forged chromium-manganese-titanium alloy steel yokes, normalised and induction-hardened at bearing seat journals. The high-angle CV joint body is machined from the same alloy to the same surface hardness specification.

CE + ISO Certification Package

CE Declaration of Conformity, ISO 9001:2015, TS/16949 process certificate, LGPD compliance documentation. SGS third-party batch inspection available on contract orders.

• —Use G4 when the implement regularly operates above 25 degrees relative to the tractor PTO stub
• —Common situations: front-mounted implements, close-coupled pump drives, compact tractor high-angle mounts
• —Use T4 for standard rear-mounted implements within 25 degrees — T4 is lower cost and simpler to maintain
• —If the implement manufacturer specifies G Series, use G4 — the CV joint is a design requirement, not a preference

• —Inspect the rubber CV joint boot at each seasonal service — before first use and at season end
• —A serviceable boot is intact, flexible, and shows no cracking, tearing, or grease leakage at the clamps
• —A torn boot must be replaced immediately — CV joint grease exposure causes rapid contamination and failure
• —Replacement CV joint boot kits are available — specify G4 when ordering

• —The G Series is dynamically balanced to ISO G6.3 standard at the factory — same as T Series
• —The CV joint mass is accounted for in the balance specification — G4 does not require field balancing
• —If vibration occurs after replacement, verify that both ends are correctly phased per the installation guide

• —Standard: 1-3/8 inch Z6 push-pin yoke (540 rpm) at both ends
• —Available: 1-3/4 inch Z20 (1,000 rpm) for high-speed PTO applications
• —1-3/8 inch Z21 available for specific European implement inputs
• —Bolt-clamp yoke option available at either or both ends — specify at order

• —Yes — overrunning clutches compatible with G4 splined yoke are available
• —Fit at the implement end to prevent back-drive from high-inertia implements
• —The CV joint at the tractor end is not affected by the overrunning clutch at the implement end

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G Series Wide Angle PTO Shafts

Full G2–G50 range — 80° CV joint

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