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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: jjs1234 on April 11, 2016, 10:17:00 AM

Title: k100 Swingarm Bearings
Post by: jjs1234 on April 11, 2016, 10:17:00 AM

Looking for one of these. I killed one of the races, because it got stuck.

May have been a costly mistake. But does anyone have one of these- Stock race/bearing?


Thanks!

Title: Re: k100 Swingarm Bearings
Post by: The Mighty Gryphon on April 11, 2016, 11:31:46 AM

Get the old one out and take it to a bearing supply house.  They'll have a replacement.  You can also go to Max BMW and get the bearing dimensions off the parts fiche.  My K75RT has it listed as "tapered roller bearing 40 x 17 x 17".   That is all you need to get a new one.  Price will be pretty close to the BMW price, maybe a buck less.  $72 ouch!

Title: Re: k100 Swingarm Bearings
Post by: jjs1234 on April 11, 2016, 11:35:06 AM

I can tell you the ones on eBay don't work. Regardless of the claims made.

I don't know of any bearing supply house here.

But perhaps someone here has a trashed swingarm?


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Title: Re: k100 Swingarm Bearings
Post by: The Mighty Gryphon on April 11, 2016, 12:15:41 PM

Here, if you really live in Reno, I saved you the trouble of doing a search:

http://www.yellowpages.com/reno-nv/king-bearing

Title: Re: k100 Swingarm Bearings
Post by: Scud on April 11, 2016, 12:17:44 PM

I have had good experience with All Balls bearings. Have you tried contacting them for the swingarm?

You can find a complete swingarm on eBay - just try to get something from a bike with low miles and the bearings might still be in great shape.

I have a spare swingarm with decent (but not new) bearings. It's a black one from a 1990 K75s. Send me a PM if interested.

Title: Re: k100 Swingarm Bearings
Post by: jjs1234 on April 11, 2016, 11:19:58 PM

My swingarm is blasted and ready to be painted. Unless I can buy one of the bearings off a member here, I will settle for the 70$  eek. But I will keep checking eBay.

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Title: Re: k100 Swingarm Bearings
Post by: jjs1234 on April 11, 2016, 11:20:50 PM

I forgot to add, I also don't live in Reno anymore and work quite a bit, but I will call timken and see if they have something...

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Title: Re: k100 Swingarm Bearings
Post by: jjs1234 on April 11, 2016, 11:35:54 PM

Just offered 5$ for a swingarm on eBay. See how it goes... 100k mi. Anyway that will leave me with 1 bearing I can send to a member here if they make a Bo Bo like me.

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Title: Re: k100 Swingarm Bearings
Post by: TimTyler on April 12, 2016, 12:18:41 AM

Quote from: jjs1234 on April 11, 2016, 11:35:54 PM

Just offered 5$ for a swingarm on eBay.

That's what I did... $15 swingarm. So far, so good.

Maybe pop the dust caps on the new one and press some fresh grease in before mounting on the bike.

Title: Re: k100 Swingarm Bearings
Post by: toddlmr on April 13, 2016, 09:33:32 PM

I picked up one at a bearing place in Austin. They had to order. It took 3  days to get it andI paid $35.

Title: Re: k100 Swingarm Bearings
Post by: kioolt on April 13, 2016, 09:37:00 PM

Do you have the bearing brand and number on that?

Title: Re: k100 Swingarm Bearings
Post by: jjs1234 on April 13, 2016, 09:52:37 PM

Quote from: kioolt on April 13, 2016, 09:37:00 PM

Do you have the bearing brand and number on that?

Is it really that easy though? Does the bearing number and what kind of races it also needs and seals and all of that? I suppose I only need to race but I'm just curious...

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Title: Re: k100 Swingarm Bearings
Post by: toddlmr on April 13, 2016, 10:04:07 PM

I don't. I through away the box.

Title: Re: k100 Swingarm Bearings
Post by: jjs1234 on April 13, 2016, 10:04:12 PM

The first bearing is the one on the main output shaft. I wanted to replace this but apparently BMW is on some sort of crazy backorder, the other one is of course the swing arm.(http://uploads.tapatalk-cdn.com/20160414/b6f47f9e19d088b2417f77114478e348.jpg)(http://uploads.tapatalk-cdn.com/20160414/f56f4d47c2a5b28c969cf990fd127bcd.jpg)

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Title: Re: k100 Swingarm Bearings
Post by: jjs1234 on April 13, 2016, 10:11:35 PM

Apparently on this thread you can only get this though BMW.

http://forums.bmwmoa.org/showthread.php?t=44221

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