Gearbox bearings

If you are replacing your transmission bearings, there are a few things to be aware of.

Have a read through these two links and you will probably learn a few things?

https://www.tapatalk.com/groups/nsr250/transmission-oil-pump-pathway-t589.html#p3332

https://edetuckracing.blogspot.co.nz/2011/05/crankcase-bearings-and-barrel-port-edge.html

This is for MC21 and MC18 R5/6k. Possibly other models as well, but I am not sure about that.
Format in mm is: (ID-OD-width)

Bearings
1 x 6203-RS (17-40-12) Counter Shaft LH $5.43
1 x 6204-2RS (20-47-14) Output shaft RH $7.53
1 x 6205-2RS (25-52-15) Counter shaft RH $7.99
1 x 6305-RS (25-62-17) Output shaft LH $10.81
1 x NTN 7B HK 1412 (14-20-12) internal needle roller - Gear change shaft $7.82

Seals
1 x 12-19-5 Clutch actuator $3.45
1 x 14-24-6 Gear change shaft $3.80
1 x 25-45-7 Output shaft LH $5.29
2 x 9-18-7 Power valve shaft $3.57 each

I have left out the 2 small internal needle rollers that are up in the clutch actuator "tunnel".
They are 12-16-10 and 10-14-10
Also I have left out the selector drum bearing. Not too sure of its exact dimensions.
Prices are in $NZ and include 15% GST (Tax)
Total cost is NZ$59.25 (2015/11/20)

 

2021-March-22nd
I have made up an Excel spreadsheet for MC21 SE/SP Gearbox/DryClutch/Waterpump bearings and seals HERE. (opens in a new browser tab).