18307-2RS (MR30187, 61903) Wheel Bearing
THIS BEARING IS 1mm DIFFERENT FROM 6903-2RS AND USED IN MANY HUBS. THE ORIGINAL BEARING QUITE OFTEN HAS 61903 ON THE SEAL - CHECK YOUR INTERNAL DIA, THIS HAS 18MM (61903 CAN ALSO BE 17MM INTERNAL DIA WHICH IS 6903)
Inner x Outer x Depth (mm): 18 x 30 x 7
Used On: Wheels (DT Swiss Hubs)
- Part Ref: MR18307-2RS
- Bearing ID: 18mm
- Bearing OD: 30mm
- Bearing Thickness: 7mm
- Material: Chromium Steel GCR15 (Race & Balls)
- Used On: DT Swiss Hubs
- Grease: SINOPEC HTHS Bearing Grease, 30% filled
- Seal: Double-sealed 2RS
This bearing is a peculiar bearing as it's only 1mm different to 6903-2rs which has a 17mm ID, instead of this bearing at 18mm ID. Appears on hubs made by DT Swiss.
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