Author Topic: Which type of bearings to swingarm? Dresda style UPDATE: Wheel alignment problem  (Read 3809 times)

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Offline PeWe

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I found a cheap swingarm on a garage sale. It need bearings. It look like std ball bearings should be fitted, or roller bearings.

Anyone that has seen this type of swingarm before and know which  bearings to use?

I compared it with OEM CB750 swingarm and they have the same measurements between the brackets for chain guard and dampers.

« Last Edit: June 29, 2013, 04:30:54 AM by PeWe »
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline brandEn

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Re: Which type of bearings to swingarm? Dresda style
« Reply #1 on: June 02, 2012, 02:13:36 PM »
Wow, a garage sale? That looks just like my NOS Dresda. It came with roller bearings. Sorry I don't have the size available.


Mine if for the F model so a bit different. That one is most likely for the K.
« Last Edit: June 02, 2012, 02:15:15 PM by brandEn »

Offline PeWe

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Re: Which type of bearings to swingarm? Dresda style
« Reply #2 on: June 02, 2012, 03:15:12 PM »
Ok, thats fine! I guessed on a Dresda but was not sure.

Is it anything between the bearings to support from inside? 
A tube that make the axis thicker and support between the bearings inner rings. There is a support for the outer ring visible on the photo.
« Last Edit: June 02, 2012, 11:10:14 PM by PeWe »
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline brandEn

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Re: Which type of bearings to swingarm? Dresda style
« Reply #3 on: June 02, 2012, 03:41:39 PM »
No, nothing is installed between the races. The race gets pressed into the swingarm. The bearing half is pressed onto those retainer end caps.
« Last Edit: June 02, 2012, 03:43:40 PM by brandEn »

Offline 754

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Re: Which type of bearings to swingarm? Dresda style
« Reply #4 on: June 02, 2012, 09:21:10 PM »
 Nothing in the middle sounds like tapered roller bearings, not ball bearings. The inside of the top arm looks a bit like the remnants from needle bearings, just a hunch.
 The top swingarm looks like K model and the black one is for an  F model..
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Offline PeWe

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Re: Which type of bearings to swingarm? Dresda style
« Reply #5 on: June 03, 2012, 12:28:57 AM »
Thanks to the answers here I was sure what to search for. I found a Swedish site, Classic Honda Club where someone had asked about Dresda bearings earlier and a guy checked his swingarm.
Timken  03062/03162 Taper Roller Bearings

More details from a retailer
Imperial taper roller bearing priced cup & cone together 0.6250 inch inside x 1.6250 inch outside x 0.5625 inch width

03062/03162 Timken Bearing Details
Dimensions - d (inside diameter) 15.875mm
Dimensions - D (outside diameter) 41.275mm
Dimensions - B (width) 14.287mm

I could verify the measures with a caliper on the swingarm and it seems to fit.
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline PeWe

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Re: Which type of bearings to swingarm? Dresda style
« Reply #6 on: June 03, 2012, 03:20:26 AM »
I have one more question regarding the Dresda swingarm,
Is it CB750 OEM bolts to be used when fasten the swingarm in chassi and wheel in swingarm?
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline brandEn

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Re: Which type of bearings to swingarm? Dresda style
« Reply #7 on: June 03, 2012, 08:42:28 AM »
I had to use a longer axle. Mine is from an early VFR. Works good but I had to use a couple washers as spacers because it was a bit to long. Swingarm bolt worked perfect. Please keep us posted on the bearings you end up getting.
« Last Edit: June 03, 2012, 08:44:23 AM by brandEn »

Offline PeWe

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Re: Which type of bearings to swingarm? Dresda style
« Reply #8 on: June 20, 2012, 08:16:17 AM »
I got the bearings today. I have not mounted them yet, I tested the inner part and saw that I need to clean the surface of the swingarm when it's tight, make the surface smooth so it will fit without using too much force or heat.

I found bearings at a lower price but hopefully good enough for this simple application as a swingarm.
Brand: MBL
http://www.ebay.co.uk/itm/03062-03162-IMPERIAL-TAPER-ROLLER-TRAILER-WHEEL-BRG-/200447930207

2 bearings with shipment £18.60 GBP which is OK. :D

The Timken bearings found on Internet costed more than I had payed for the Swingarm.

CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline brandEn

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Re: Which type of bearings to swingarm? Dresda style
« Reply #9 on: June 20, 2012, 08:33:00 AM »
Thanks for the update!

Offline PeWe

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Update: Wheel alignment problem-Swing too narrow?
« Reply #10 on: June 29, 2013, 04:30:12 AM »
I'm finally assembling the bike. When everything went very smooth I got problems :-\
The Swing arm seems to be too narrow and rear wheel not aligned with the rest of the bike. Wheel should be in the centerline, but not.
The swing arm is only 220mm inner where the hub with spacers are located, K6-OEM is 240mm. This means that 20mm less spacers needed. It should be 10mm less on each side but that is not possible. I removed the big 28mm long spacer on brake side and used 4 washers.

The swing arm fit very well otherwise, bearings with spacers fitted perfectly and brackets for chain guard are placed as OEM. One problem only, 20mm too narrow and wheel not aligned.
-Is this a typical problem for some Dresda swing arms? Maybe made for another wheel?
« Last Edit: June 29, 2013, 04:36:15 AM by PeWe »
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967