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Rear wheel bearing help
Posted: Mon Feb 01, 2021 4:36 pm
by Aginley
So fitted rear wheel bearings and still have loads of play in them.
Bought new stubs and tried again, still the same.
Bought some new second hand radius arms , still the same.
Tried timken bearings from somerford and minispares.
It’s like either the central part of the bearings need 0.5mm off or they need a 0.5mm shim in the hub before the outer race is fitted.
Any advice or has anyone else come across this?
Oh I’ve also bought new hubs from Minispares and it’s still the same.
YouTube link below
https://youtu.be/6_tHPrXKnuU
Re: Rear wheel bearing help
Posted: Mon Feb 01, 2021 8:12 pm
by Peter Laidler
Seems to me that the spacer is too wide. You don't say whether they're taper rollers or ball races. I wrote a tech article about fitting rear bearings a couple of years ago. Maybe someone wot's computer savvy can bring it up.
But for your info Aginley, I'd NEVER trust the spacer that comes with the kit - ANY kit! It's what the old fitters called 'selective' or 'hand' or just plain old fashioned bench fitting
Re: Rear wheel bearing help
Posted: Mon Feb 01, 2021 9:25 pm
by Aginley
Yes it’s as if the spacer is to wide. The trouble is they don’t come with spacers
Their timken roller taper bearings. Think I might take a bit off each surface?
Re: Rear wheel bearing help
Posted: Mon Feb 01, 2021 9:29 pm
by Aginley
Two of these
Re: Rear wheel bearing help
Posted: Mon Feb 01, 2021 9:51 pm
by Daz1968
I had timken with separate spacer on mine and although one rear bearing was fine other one had a little play, I reduced the spacer until play was taken up,
Re: Rear wheel bearing help
Posted: Mon Feb 01, 2021 10:57 pm
by Spider
Aginley wrote: ↑Mon Feb 01, 2021 9:29 pmTwo of these
Sadly, that's not going to show if the bearing is too wide.
A measurement needs to be taken from the inner face of the Cone to the inner Face of the Cup. It should be 0.2075".
Re: Rear wheel bearing help
Posted: Tue Feb 02, 2021 2:19 am
by 850man
It is very common to surface grind the spacer/integrated spacer as they are often too wide.
Re: Rear wheel bearing help
Posted: Tue Feb 02, 2021 7:48 am
by 251 ENG
I have old stock timkens that will fit available
Contact me at
orx77@yahoo.co.uk
Re: Rear wheel bearing help
Posted: Tue Feb 02, 2021 8:22 am
by Aginley
Thanks Simon, I’ll try face them of first as I’ve spent a fortune in these so far, if it fails I’ll email you.
Cheers
Re: Rear wheel bearing help
Posted: Tue Feb 02, 2021 12:37 pm
by Peter Laidler
I've seen these bearings with inbuilt spacers but never imagined that they would or should be used as a pair. With my engineering hat on, I'd say that if I was offered a set, I'd use ONE spaced bearing with one STANDARD bearing. THEN machine a suitable spacer to take up the slack . I could skim the machined spacer down to give me the .003" (?) end float needed. Easy! Fit oil seal etc, grease up, torque down and.....