15x21x4 Stainless Steel Rubber Seal
Great for wet applications!
- 15mm Inside diameter
- 21mm Outside diameter
- 4mm wide
- mr6702-2rs 6702 2rs 15x21
- Abec 3
- Pre Greased
- 440 Stainless Steel balls retainers & races
- Rubber seals
440 Stainless Steel
Stainless Steel bearings offer 75-85% of the strength as the Chrome Steel bearing, but will not corrode when used in wet applications. Stainless Steel also will run safely at a higher temperature than a chrome steel