Rear Bush Fork - compatible bikes ?

Phil-UK · Post by **Phil-UK** » Sat Feb 17, 2018 11:04 am

Hi, back on the subject of swinging arm bushes again.

Just saw a set of repro bronze bushes expire on US Ebay ( about £30.00 but will not post to UK ) and looking about have found Simply Bearings in the UK do sintered oil soaked top hat bushes in 20x26x15mm at £14.00 for 5.

Manual says OD = 26.04-26.08 mm
ID = 20.05-20.08 mm ( repair limit 20.5 or more )

No detail for length but I measure an old one as 17mm; likewise no dimensions for the steel sleeve but I measure them at OD = 20mm ID = 14mm and Length = 50.25mm

Can anyone see a reason why these shouldn't be used to replace the original Fibre ones ?
If properly lubricated surely they would be as strong as fibre, and could be rubbed down to fit.

No sign of the East European ones Dennis got in the past on UK Ebay.

Phil

G-Man · Post by **G-Man** » Sat Feb 17, 2018 11:30 am

Phil

Thanks for sharing that. I hadn't noticed them. That's probably cheaper than buying material and making your own (whch I have done several times). I'm going to get some and try them out.

Plenty strong enough compared with the original phenolic ones.

G

Phil-UK wrote:Hi, back on the subject of swinging arm bushes again.

Just saw a set of repro bronze bushes expire on US Ebay ( about £30.00 but will not post to UK ) and looking about have found Simply Bearings in the UK do sintered oil soaked top hat bushes in 20x26x15mm at £14.00 for 5.

Manual says OD = 26.04-26.08 mm
ID = 20.05-20.08 mm ( repair limit 20.5 or more )

No detail for length but I measure an old one as 17mm; likewise no dimensions for the steel sleeve but I measure them at OD = 20mm ID = 14mm and Length = 50.25mm

Can anyone see a reason why these shouldn't be used to replace the original Fibre ones ?
If properly lubricated surely they would be as strong as fibre, and could be rubbed down to fit.

No sign of the East European ones Dennis got in the past on UK Ebay.

Phil

Phil-UK · Post by **Phil-UK** » Mon Feb 19, 2018 3:40 am

Hi Graham

They list the bushes in a number of lengths and when I said genuine ones were 17mm long it was excluding the "top hat" so I will probably go for the 20mm length ones ( @£16.00 ) and see if they need shortening.

cheers

Phil

G-Man · Post by **G-Man** » Mon Feb 19, 2018 3:48 am

Hi Phil

I've done the same. A lot easier modifying these than buying cored bronze tube and machining from scratch. I have a large adjustable reamer to do the bore after they've been fitted.

G

Phil-UK wrote:Hi Graham

They list the bushes in a number of lengths and when I said genuine ones were 17mm long it was excluding the "top hat" so I will probably go for the 20mm length ones ( @£16.00 ) and see if they need shortening.

cheers

Phil

Tim Allman · Post by **Tim Allman** » Mon Feb 19, 2018 10:13 am

I found this listing for one that seems to need only cutting to length.

https://www.123bearing.com/accessory-oi ... -26-30.php

G-Man · Post by **G-Man** » Mon Feb 19, 2018 1:02 pm

It doesn't appear to have a flange........

G

Tim Allman wrote:I found this listing for one that seems to need only cutting to length.

https://www.123bearing.com/accessory-oi ... -26-30.php

G-Man · Post by **G-Man** » Tue Feb 20, 2018 5:39 am

Here are the sintered bronze bearings from Simply Bearings in the UK.

https://simplybearings.co.uk/shop/p1207 ... backstep=1

The flange is about 0.25mm thinner but that should not be a big problem. The bore is a little bit loose on the worn pin that I found but it feels good all round.

Quite a big saving over the alternatives and much better than the horrible fibre thing that Honda used.

G