Trailer wheel center bore size

pilotwillie · 25 January 2016, 22:32

Just rcvd new axle, fully fitted with hubs, bearings, brakes, etc.
Just rcvd new wheels to go on said axle.

The center bore size of the new wheel is approx 95mm. The size of the corresponding hub mount / bearing hole is only approx 55mm. Problem ?

Should the wheel not fit snugly onto the hub for the purpose of alignment and for taking some of the weight once secured with wheel bolts ???

Don't know if I've explained it that well !!!

beamishken · 26 January 2016, 06:48

Should be OK as the nuts are coned for alignment
A lot of cars don't have a centre boss for the wheels and just rely on the studs

pilotwillie · 26 January 2016, 10:20

Just concerned that the clamping force of the bolts onto the hub isn't enough without the hub ring support, causing a shear force onto the bolts due to rig weight. Not too sure what current axle set up is, will look next time down.

jeffstevens763@g · 26 January 2016, 10:39

yep studs do it all wheel would have to be force fit to do any load bearing.

pilotwillie · 26 January 2016, 21:38

Ok, mind a little more at rest now. Many thanks. Hoping to get down to RIB tomorrow to have a look at current set-up. Time permitting, new axle may well get fitted.

Trailer Guy · 26 January 2016, 21:51

Jeffstevens is correct. The majority of trailers just rely on the studs/bolts to hold the wheel on. 99% of the time the centre of the wheel is much larger than the drum boss.

pilotwillie · 27 January 2016, 06:11

Quote:

Originally Posted by Trailer Guy

Jeffstevens is correct. The majority of trailers just rely on the studs/bolts to hold the wheel on. 99% of the time the centre of the wheel is much larger than the drum boss.

Excellent, thanks for info. Axle and wheels came from different suppliers, just glad I haven't made an ar$e of the order ! Fitted they shall be !!!