Weld-on splined couplers
Weld-on splined couplers Highly convenient for welding onto the steering shaft, these can replace universal joints in cases where a floating connection is not required. Unless otherwise specified, the coupler is counterbored 1 inch deep to accept 3/4 OD tubing.
Couplers identified with a B in the part number are counterbored for 5/8 tubing.
Please note that we cannot provide a counterbore smaller than the spline.
Couplers are useful for splicing a servo rigidly into a steering shaft, and also for connecting to a rack mounted in pillow blocks close to the driver (such as the Type MR or MC) provided it is possible to accurately align the steering shaft with the pinion spline. However, a coupler should never be used to connect to a rack where there is any likelihood of misalignment resulting from chassis flex. In such cases (which is to say most race cars larger than formula cars) the rack should always be connected with a universal joint.