swingarm bushing dimensions

[Erny]

I took pics and made video too. These are bushings I got new from PO

[Nurse Julie]

I took pics and made video too. These are bushings I got new from PO

Then they are the correct bushes for your bike and are the same as myself and Frank would supply, identical.

[Erny]

So what's wrong? They cannot go inside swingarm by thumb...

[Nurse Julie]

Hang on one moment and I will give you the dimensions of the bush I sell so you can compare.

[Erny]

If I compare new bronze and old stock I see difference (absolute value might not be perfect due to caliper)

[Nurse Julie]

The measurements are as follows:-
OD 26.50
ID 21.40
Total length 44.00
Depth of top lip 2.00
OD of lip collar 31.90
Length excluding collar 42.00 (length sitting inside swing arm)

[Nurse Julie]

Your original bushes, the ones supplied by the PO and the ones I sell measure so close together to make no difference. I would measure the ID of your swing arm and compare with another CB500/4 swing arm. I see you have had your swing arm powder coated. Did you block off the ends before or leave open and then clean powder coat out?

[Nurse Julie]

Are your old bushes loose in the swing arm now?

[Erny]

Your original bushes, the ones supplied by the PO and the ones I sell measure so close together to make no difference. I would measure the ID of your swing arm and compare with another CB500/4 swing arm. I see you have had your swing arm powder coated. Did you block off the ends before or leave open and then clean powder coat out?

No it is not powder coated. It is only sprayed with black spray. Holes were covered when spraying. If I take mechanical caliper, ID of swing arm is 26.50 OD of bushings 26.4...

[Erny]

Are your old bushes loose in the swing arm now?

No they are tight. I'm certain they are original

[Nurse Julie]

Your original bushes, the ones supplied by the PO and the ones I sell measure so close together to make no difference. I would measure the ID of your swing arm and compare with another CB500/4 swing arm. I see you have had your swing arm powder coated. Did you block off the ends before or leave open and then clean powder coat out?

No it is not powder coated. It is only sprayed with black spray. Holes were covered when spraying. If I take mechanical caliper, ID of swing arm is 26.50 OD of bushings 26.4...

Going by your measurements 0.02mm difference should not really make them that loose in the swing arm.

[Erny]

The measurements are as follows:-
OD 26.50
ID 21.40
Total length 44.00
Depth of top lip 2.00
OD of lip collar 31.90
Length excluding collar 42.00 (length sitting inside swing arm)

Measured (using the same mechanical caliper that I can rely on)
OD 26.40
ID 21.70 (yes, they have play over the brand new oem collar 52141-300-000)
Total length 44.0
Depth of top lip 1.80
OD of lip collar 32.00
Length exl collar 42

So seems there are discrepancies - too small OD too small ID. Maybe also lip not wide enough?

[Erny]

How it looks with when assembled - play. Is that normal?
https://youtu.be/R27AaQF6wPw

[Nurse Julie]

If your measurements are correct, but I can also see discrepancies in your measuring, I would agree they are to small. I am wondering why they were not fitted by PO ? I wonder if they have been turned down for some reason.

[Nurse Julie]

How it looks with when assembled - play. Is that normal?
https://youtu.be/R27AaQF6wPw

You can't assess it like that. I have just measured 5 new bushes with the micrometer and they all measure an average if this [ Guests cannot view attachments ]