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1/4x7 Carbon Steel Ball Retainer For Bicycle Middle Hub 6.35mm Steel Ball
1. Material:IAISI1015
2. Hardness:HRC58-62
3. Steel ball grade:G200-G1000
4. It is good used in bicycle
1/4" Series steel ball retainer with chrome steel ball
size | 1/4“×6 |
size | 1/4”×7 for front and rear hub |
size | 1/4”×9 for BB cups |
size | 1/4“×11 for rear coaster brake |
7/32" Series steel ball retainer with chrome steel ball
size | 7/32" × 8 |
size | 7/32" × 10 |
3/16" Series steel ball retainer with chrome steel ball
size | 3/16" × 7 for front and rear brake |
size | 3/16" × 9 |
5/32" Series steel ball retainer with chrome steel ball
size | 5/32" ×16 for head parts(fork fittings) |
5/16" Series steel ball retainer with chrome steel ball
size 5/16" × 7 for opc BB cups |
size 5/16" × 9 for opc BB cups |