Trailer wheels

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Trailer wheels

Postby welshhealey » Sat Jun 03, 2017 10:53 pm

Whilst removing my trailer wheels to do the usual maintenance e.g. Bearing lubricating / replacing cracked tyres etc .. I discovered with horror, the centre hole that's fits over the hub , is much larger than the hub/bearing cap etc... therefore, the whole weight of the boat, trailer and all is only supported with the 4 studs on each wheel , this can't be right surely? :hmmm: The stress on the studs must be horrendous , and I shudder to think if one sheared with the load bearing on them whilst cruising on the motorway. :shock: .This makes me realise so far I've been very lucky that nothing has happened, and if something did, and caused an accident, would my insurance be null and void ? Plus the police investigation :shock: The trailer is a indespension hallmark and I got the gut feeling the previous owner at some stage may have put the incorrect wheels on :hmmm: Am I correct with my assumption?
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Re: Trailer wheels

Postby floater » Sun Jun 04, 2017 9:11 pm

Many aftermarket alloy wheels have centre bores larger than the hub boss, this enables them to fit a wider range of vehicles. You can buy sleeves to bridge the gap but many are plastic proving that they're only to aid location while fitting not as a structural mount. It's the conical seats on the nuts that provide the centreing and the friction between the wheel and hub face that provides the grip so that you're not actually riding on the studs as such.
My old car had alloys that had a centre comprised of four corner sections rather than a round hole, combined with a big chamfer it was always a pain to hold the wheel in place and insert the bolts.
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