Shimano Nexus SG-8R20 Ball Retainer O - 3/16" x 26 - Y34R98030

Customer Reviews (2)
5 / 5| Write your review
£5.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
For use with Shimano Nexus SG-8R20 internal hub gears.

This Ball Retainer O can also be used on the following internal hub gears:

- Shimano Alfine SG-S7000-8
- Shimano Alfine Di2 SG-S505
- Shimano Alfine SG-S501
- Shimano Alfine SG-S500
- Shimano Nexus SG-C6060-8C
- Shimano Nexus SG-C6060-8R/8V
- Shimano Nexus SG-C6010-8R/8V
- Shimano Nexus SG-C6000-8C
- Shimano Nexus SG-C6000-8R/8V
- Shimano Cyber Nexus SG-8C56
- Shimano Cyber Nexus SG-8C45
- Shimano Nexus SG-8C31
- Shimano Nexus SG-8C22
- Shimano Nexus SG-8C20
- Shimano Cyber Nexus SG-8R56
- Shimano Cyber Nexus SG-8R55
- Shimano Cyber Nexus SG-8R45
- Shimano Nexus SG-8R36
- Shimano Nexus SG-8R35
- Shimano Nexus SG-8R31
- Shimano Nexus SG-8R30
- Shimano Nexus SG-8R27
- Shimano Nexus SG-8R25
- Shimano Nexus SG-8R22
- Shimano Nexus SG-8R20-Belt

These are an "A" match which indicates that the parts are the same in materials, appearance, finish & size etc.

Genuine Shimano replacement part.
Product Reviews (2)
Questions & Answers (3) Q & A
Download File  
Product Reviews (2)
Overall Product Rating 5 / 5
genuine bearing
By mike
25 Aug 2020
5 / 5
I recommend this product
Used on Nexus 8 speed hub.
Big improvement over the original part
By Anonymous
02 Aug 2017
5 / 5
I recommend this product
ProsBall retainer is now rust-proof and is easier to slide over the pawls than the earlier metal part.
Water had entered the right-hand side of the gearbox and the outer ball race was badly rusted. The new part holds the ball bearings in a flexible plastic ring, which looks like a better, longer lasting, solution.
Questions & Answers (3)
Does this part include bearings
22 Apr 2023
Hi, does the retainer come with ball bearings or do they have to be bought separately? Thanks
Yes, the bearings shown are included when you purchase this item.
Kind Regards. JP 24/04/23
Y38X98050 Ball Retainer O (3/16" x 26)
09 Sep 2017
Can this be use as replacement part with Alfine SG-S7001-8 and it's original Y38X98050 Ball Retainer O (3/16" x 26)?

This is indeed suitable for use with your hub in replacement of that original part.

This Is Same To Sg7R45
10 Sep 2014
I have SG7R45 NEXUS this is same to SG7R45

Although this ball race and the one for your hub are very similar they probably aren't the same no. They could be but they both use different Shimano spare part's numbers which leads us to believe they are different. The correct part you require for SG-7R45 is still an available spare to buy at this time, so we could special order you one in if you wanted.