Swing arm bearing seals

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Chuey
Posts: 7632
Joined: Mon Aug 02, 2010 11:56 pm

Swing arm bearing seals

Post by Chuey »

I bought new swing arm bearings and seals for the recently powdercoated swing arm for my Cafe' Racer (1982 R100S).

With the bearings in place, the depth of the recess left over for the seals would accommodate plastic seals such as the ones that came out of it originally. The seals I was sold are metal "cups" where they interface the swing arm recess. The seal sticks out for about half its width. When I put the bushing in - the one that rides against the bearing, it still sticks out proud of the seal so it looks like it would still fit just fine. The metal seal housing (inverted cup) will be closer to the inside of the frame than would be a thinner plastic seal.

To put it another way, and the dimensions are a guess, once the bearings are all the way pressed in, the recess for the seal is about 4mm. When the metal seal housing is pressed in to bottom out on the installed seal, there is still about 4mm sticking out from the swingarm. The seal seems to be very secure.

My question is - anybody here know if there a safety or reliability issue here?

Thanks,

Chuey
ME 109
Posts: 7313
Joined: Tue Aug 03, 2010 3:00 am
Location: Albury, Australia

Re: Swing arm bearing seals

Post by ME 109 »

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Lord of the Bings
Chuey
Posts: 7632
Joined: Mon Aug 02, 2010 11:56 pm

Re: Swing arm bearing seals

Post by Chuey »

I'm posting this in case it helps someone who may search this subject in the future.

The bearings were the wrong ones. There are two available types and I had the older ones but the swingarm needed the newer ones.

Chuey
Rob
Posts: 3105
Joined: Thu Feb 13, 2014 2:05 am

Re: Swing arm bearing seals

Post by Rob »

All I knew about were the R65 bearings, which, I believe, were different from Type 247.
Rob V
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enigmaT120
Posts: 3570
Joined: Tue Aug 03, 2010 12:25 am
Location: Falls City, OR

Re: Swing arm bearing seals

Post by enigmaT120 »

Aren't ours the same as the wheel bearings? Same Ed Korn tool pulls both. But we don't have any swing arm bearing seals.

Wait! I can't say "ours" any more, can I?
Ed Miller
'81 R65
'70 Bonneville
Falls City, OR

"Gasoline makes people stupid." -- Chuey
"I'll believe corporations are people when the State of Texas executes one." Bumper sticker
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