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Author Topic: swing arm bearings  (Read 3426 times)

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oldfart

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swing arm bearings
« on: February 28, 2012, 08:13:20 pm »
Trying to source  Rm 250 / 370 B ( 1977) swing arm bearings and special thrust washers. ......Iko Ta 202825   Ze    closest match seems to be  202825 Z
Thrust bearing
Part # = 09269-20010
Part Description = THRUST BEARING IKO
Model Count = 7
PE250B 1977 246 PE250 DUAL PURPOSE
PE250C 1978 246 PE250 DUAL PURPOSE
RM250A 1976 246 RM250 OFF ROAD
RM250B 1977 246 RM250 OFF ROAD
RM250C 1978 246 RM250 OFF ROAD
RM370A 1976 372 RM370 OFF ROAD
RM370B 1977 372 RM370 OFF ROAD

They both  seem to be model specific.   ???
Any leads or quick fixs would be a step in the right direction.
Thrust be
« Last Edit: February 28, 2012, 08:20:09 pm by oldfart »
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Offline Lozza

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Re: swing arm bearings
« Reply #1 on: February 28, 2012, 08:53:38 pm »
Phosphur bronze, reamer and lathe  ;)
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Offline lukeb1961

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Re: swing arm bearings
« Reply #2 on: February 28, 2012, 10:43:08 pm »
the needle bearings? eBay 170726805608
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oldfart

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Re: swing arm bearings
« Reply #3 on: February 29, 2012, 04:55:18 pm »
Lozza, looks like I will be going down that road, making up a shoulder to take the cup washer and O/ring only ......some thing similar to RM 250/ 400 T  set up

Luke , thanks I spotted those, but they need to match up with this silly thrust washer set up.

They run a cup washer of which has a neddle roller thrust bearing and a flat  thrust washer that the TA 202825 rolls against of which stops side movement... to me over kill  ::) ::)
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Offline pmc57

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Re: swing arm bearings
« Reply #4 on: February 29, 2012, 06:53:24 pm »
Stewy
Those thrust washers are a pain, although with a bit of thought (and lathe work), I'm sure you'll be able to come up with a alternate set up, perhaps a bronze bush configuation?

If my memory is correct, common standard needle bearings are available from bearing shops in the same OD and ID but shorter in length, if you go down this path, you need to make the spacer between them that's a bit longer to compensate.

Don't know if this helps?
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oldfart

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Re: swing arm bearings
« Reply #5 on: February 29, 2012, 07:59:18 pm »
Yep you have it spot on Pete common bearing size is 5 mm shorter  being a  TA 202820 which is NFG
Intent on making something Saturady Arvo along the lines on my previous post.
Catch up with you and Ed   Sunday  ;) 
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Offline lukeb1961

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Re: swing arm bearings
« Reply #6 on: February 29, 2012, 08:37:18 pm »
four went on UK eBay back in November :-(

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Offline Davey Crocket

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Re: swing arm bearings
« Reply #7 on: February 29, 2012, 11:31:55 pm »
Now thats a tease if I've ever seen one. ;D
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Offline JohnnyO

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Re: swing arm bearings
« Reply #8 on: February 29, 2012, 11:40:01 pm »
Quote from: lukeb1961 on February 29, 2012, 08:37:18 pm
four went on UK eBay back in November :-(


Yeah i bought 2 of them.. ;) probably should've bought all 4 ???
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oldfart

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Re: swing arm bearings
« Reply #9 on: March 01, 2012, 05:54:12 pm »
That's the suckers ..... never mind I'll build my own  ;)
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Offline Marc.com

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Re: swing arm bearings
« Reply #10 on: March 01, 2012, 06:59:36 pm »
Why did we go for needle bearings on the swingarm again. I would say bronze bushes and grease nipples would be quite suitable.
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