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Constant Velocity Joints

A constant velocity joint is a mechanical coupling in which the rotational speed of the output shaft is the same as that of the input shaft whatever the operating angle of the joint.

In most applications, the inboard CV Joint is a plunge joint that allows the effective length of the sideshaft to change due to suspension travel. In front (or steer) axle applications, the outboard joint must transfer torque effectively through a wide angle (up to 52 degrees). In rear axle applications, joint operating angles are much lower.

Joint Kits

SPIDAN and LÖBRO joint kits contain all the individual parts needed for professional repairs: joint, boot, boot circlips, tightening straps, bolts, nuts, spacers, etc.

GKN's sideshaft range for the Aftermarket

Fixed Ball (AC) Joint

The AC joint is suitable for passenger cars and light vehicles. Providing a maximum articulation angle of 47 degrees to meet the criteria for steering and suspension movement, it is the most popular choice for the wheelside of a constant velocity sideshaft.

Fixed Ball (UF) Joint

Offering the same strength and durability as the AC joint, the UF fixed ball joint provides the maximum 50 degrees articulation angle, so affording greater latitude in the design of the steering geometry and facilitating smaller turning circles.

Fixed Ball Joint – SIO plus Ballspline

The SIO joint for inboard use is based in the “opposed track” principle to provide high performance in smallest packaging with optimised joint efficiency. Together with the ballspline as plunging unit, it represents a premium solution for extreme plunge angle requirements and high installation angles, as for instance needed for SUV vehicles.

Tripod Plunging (GI) Joint

The standard tripod joint GI is suitable for the inboard gearbox joint of a constant velocity sideshaft for most vehicles. It has a maximum articulation angle of 23 degrees and has a plunge length of 50mm. It is ideal for medium working angles and its low plunge resistance aids good NVH characteristics.

Tripod Plunging (AAR) Joint

In addition to the properties of the GI joint, the low plunging resistance and low axial forces of the AAR joint deliver additional NVH refinement, making it appropriate for high working angles. It has a maximum articulation angle of 26 degrees and 50mm plunge.

Ball Plunging (VL) Joint

The VL ball plunging joint is a popular choice for the inboard joint of the rear-wheel drive CVJ sideshafts. With maximum 22 degrees articulation and a plunge of 50mm it is ideal for high working angles with low axial forces. The VL joint is also available as monobloc or disc version.

Ball Plunging (DO) Joint

The DO joint is similar to the VL. It is available in two versions with 50mm plunge for a maximum articulation of 26 degrees or 31 degrees. The DO joint is also suitable for high working angles on account of the low axial vibration.