4x9x4 Stainless Steel Rubber Seal
Great for wet applications!
- 4mm Inside diameter
- 9mm Outside diameter
- 4mm wide
- mr684 mr 684 2rs 4x9
- 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