The Black Bearing 275377 is an OEM-equivalent cartridge bearing sized 27.5x37x7mm (ID x OD x width), built as a direct replacement for a worn bearing of this size in a hub, pivot, pulley or bottom bracket cup. It's the front hub bearing used in SRAM Predictive Steering front hubs, fitted to the RS-1 suspension fork.

Highlights

  • Chrome steel balls to ABEC 3 tolerance
  • SAE52100 chrome steel rings and cage
  • 2RS rubber seals for water and dust resistance
  • High-quality grease as fitted, ready to press in

Bearing details

Designation 275377, grade B3 (ABEC 3). Bore (ID) 27.5 mm, outside diameter (OD) 37 mm, width 7 mm. Sealed both sides (2RS) to keep water and grit out.

Compatibility & fit

Fits any hub, pivot, pulley or bottom bracket cup that calls up a 275377 (27.5x37x7mm) cartridge bearing. It's the front hub bearing used in SRAM Predictive Steering front hubs, fitted to the RS-1 suspension fork. Check the size stamped on your old bearing before ordering — Tune Cycles can confirm fitment and press the new bearing in as part of a bearing-replacement service.

We could not confirm a published warranty term for this line, so cover here is against manufacturing defects, with remedies as required under Australian Consumer Law. For warranty support, return the product to Tune Cycles and we'll manage the claim with Black Bearing's Australian distributor.
  • Chrome steel balls to ABEC 3 tolerance
  • SAE52100 chrome steel rings and cage
  • 2RS rubber seals for water and dust resistance
  • High-quality grease as fitted, ready to press in
  • 27.5x37x7mm (ID x OD x width), designation 275377
Designation275377
Bore (ID)27.5 mm
Outside diameter (OD)37 mm
Width7 mm
GradeB3 (ABEC 3)
Seal type2RS (double rubber seal)
SKU SCV-BBBG-UB-275377-B3
Brand Black Bearing

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