Transmission bearings for 73' RD350

[2t Fan]

Can anyone help me with the generic transmission bearing no.s for the air-cooled '73 RD350

Thanks

[quocle603]

https://www.partzilla.com/catalog/yamaha/motorcycle/1973/rd350/transmission

Which part????

Part 31?

[1976RD400C]

The bearing numbers are listed in the specs in the back of the service manual.

[2t Fan]

https://www.partzilla.com/catalog/yamaha/motorcycle/1973/rd350/transmission

Which part????

Part 31?

All the bearings inside the gearbox. I am looking at the numbers like "B6305N" etc

[2t Fan]

The bearing numbers are listed in the specs in the back of the service manual.

ok thanks. Let me check it out

[SoCal250]

Wow #14 is an expensive one! When ordering make sure you get replacements with the correct features as some of these have circlip grooves in the OD, etc. The Partzilla diagram mentioned above has photos of the parts you can use for reference

#     PART NUMBER      DESCRIPTION
12   93311-22027-00   BEARING, CYLINDRICAL 20-30-15
14   93305-20502-00 (93305-20508-00)   BEARING B5205 Special 25-52-20.6
24   93310-22057-00   BEARING K20-24-10 S
27   93311-42045-00   BEARING, CYLINDRICAL 20NQ3315NE 20-33-15
31   93306-30504-00   BEARING B6305N

[2t Fan]

Wow #14 is an expensive one! When ordering make sure you get replacements with the correct features as some of these have circlip grooves in the OD, etc. The Partzilla diagram mentioned above has photos of the parts you can use for reference

#     PART NUMBER      DESCRIPTION
12   93311-22027-00   BEARING, CYLINDRICAL 20-30-15
14   93305-20502-00 (93305-20508-00)   BEARING B5205 Special 25-52-20.6
24   93310-22057-00   BEARING K20-24-10 S
27   93311-42045-00   BEARING, CYLINDRICAL 20NQ3315NE 20-33-15
31   93306-30504-00   BEARING B6305N

thanks SoCal250

Managed to find below , not sure if they are exact replacements

B6305N

20-33-15 -20NQ3315NE (Koyo)

20-24-10 -K20-24X10 S (Koyo)

B5205 Special

20-30-15 - RV203015-JTEKT (Koyo)

[SoCal250]

Koyo brand is Yamaha OE 

[klaird]

I replaced all of transmission bearings on 75 RD  last winter. Ordered from "Yamaha Parts Online" (babbitts) and the prices were very  reasonable $218 bucks for all of them, all OE.

[SoCal250]

It's a little more expensive these days

                             MSRP  Babbitts   Partzilla
93311-22027-00    $52.99  $41.33   $37.39
93305-20502-00    $125.99 $98.27   $92.92
93310-22057-00    $42.99  $33.53   $33.41
93311-42045-00    $32.15  $25.08   $26.31
93306-30504-00    $71.99  $56.15   $56.13
                TOTAL    $326.11  $254.36  $246.16

[1976RD400C]

Here's what Yambits sent for a RD400 countershaft ($20) and clutch shaft ($33) bearings.

[2 Smoker]

It's a little more expensive these days

                             MSRP  Babbitts   Partzilla
93311-22027-00    $52.99  $41.33   $37.39
93305-20502-00    $125.99 $98.27   $92.92
93310-22057-00    $42.99  $33.53   $33.41
93311-42045-00    $32.15  $25.08   $26.31
93306-30504-00    $71.99  $56.15   $56.13
                TOTAL    $326.11  $254.36  $246.16

Nice research Russ