We produce a range of CV’s that are an up-rated version of the standard part. The picture shows a CV conversion kit that replaces the 32 spline CV for a stronger 23 spline assembly suitable for Land Rovers. This allows use of the stronger 24/23 spline halfshafts. The CV cup offers around a 40% increase in strength over a standard CV.
Stub shafts
Stub shafts are designed to shear at a preset level of torque. This protects the rest of the driveline and only incurs 5 minutes of vehicle downtime to replace. 3 Stub shafts are supplied in the kit, 2 to fit and 1 as a spare.
Unique to KAM; we have developed stub shafts that are fusible.
KAM CV Kit with 3 off fusable stubs shaft Broken stub shaft
Land Rover 32 spline Top KAM 23 spline bottom.
Test Date
Testing of the Land Rover OEM CV joint was conducted both in line and at 30 degrees. Failure in both cases was initially by cracking of the inner race prior to ultimate failure of the integral stub shaft. Initial failure of the inner race was at 4050Nm and 4880Nm for the 30 degrees and Inline tests respectively.
A KAM Aerospace CV was tested at 30 degrees using fixtures machined from 300M Maraging Steel. During testing we were unable to cause failure of the CV joint as the fixture always failed first. As such we can only currently state that the strength of the KAM Aerospace CV Joint is greater than 8500Nm.
Test data of OEM CV compaird to KAM Aerospace CV
The KAM fusible stub shafts were shown to fail in the range of 5000Nm to 6000Nm with elastic limits in the range of 4500Nm to 5500Nm.
Common failures on Land Rover CV.s
As can be seen on the test data KAM,s replacable fusible stub shafts have different failure rates. When ordering please give your tyres size, ratio and engine specifications and we will advice on the best undercut, i.e. fuse point for your vehicle application.
Internal cage breakage Stub shaft breakage
KAM CV adapter bearings for stub axle.
These adapter bearings are only required if the axle is pre 300 tdi. The KAM CV use’s the original roller type bearing and is a direct replacement. Bearing Part No: FTC861
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