Hub centre steer Upright for 3 wheeler.

grabcad

A number of years ago I started work on a side car style 3 wheeler. The front upright is as described - the Hub bearing assembly is an NTN HUB232-8. The choice was motivated by flange offset of 41mm. This allows packaging all within an ET55 rim. The rim I have chosen to model (poorly) is from a 2007 Honda Accord and is a 6.5j x 15 ET55 with 5x 114.3 PCD - this mated to a 205/65R15 tyre. The lower ball joint (spherical bearing) is a COM12T which has a 3/4” Bore. It is mounted in the upright, not the bottom wishbone. The reason for this is to allow the disc to move very close to the upright – packaging. Also it allows the A-arm pivot point to attach higher in the frame – giving greater ground clearance at front. It is oversized for the job. The upper is a 12mm rose/heim joint