BSA Owners' Club Workshop Discussions

The BSA Workshop => Twins => Topic started by: spike123 on 22 Apr, 2021, 13:45

Title: BEARING
Post by: spike123 on 22 Apr, 2021, 13:45
HI
CAN ANYONE TELL ME WHATS THE EQUIVELENT BEARING TO A HOFFMAN 125 QD HUB
Title: Re: BEARING
Post by: DAVE BRADY on 22 Apr, 2021, 19:08
Hi Spike,

I think I have two equivalents.  HCH and RHP both 6205.
There are some very cheap bearings out there many without a makers name on them.  It is worth going to your local bearing stockist and buy a mid priced bearing as a minimum.  Sealed ones work well.  I think most of the well known manufacturers make an equivalent.

Dave.
Title: Re: BEARING
Post by: chaz on 23 Apr, 2021, 07:30
if possible , get a NC3 fit bearing. closer tolerances.
Ive mentioned in another thread, there are some Chinese ones about that are lower toleranced and fall out when pressed in.
RHP, Timken or SKF or even Koyo, Koyo are a supplier of oem bearings on many Japanese bikes.
Title: Re: BEARING
Post by: Ian C on 23 Apr, 2021, 13:40
Quote from: chaz on 23 Apr, 2021, 07:30
if possible , get a NC3 fit bearing. closer tolerances.
Ive mentioned in another thread, there are some Chinese ones about that are lower toleranced and fall out when pressed in.
RHP, Timken or SKF or even Koyo, Koyo are a supplier of oem bearings on many Japanese bikes.

A C3 ballrace bearing would have a greater internal ball to race clearance than a CN for example. For motorcycle wheel bearings a CN should suffice unless C3 specified by the manufacturer.