The Black Bearing 6801 is a ceramic hybrid cartridge bearing sized 12x21x5mm (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.

Highlights

  • Silicon nitride (Si3N4) ceramic balls
  • SAE52100 steel / KS440 stainless steel rings
  • Low-friction polyamide cage
  • Ceramic-specific grease for reduced drag

Bearing details

Designation 6801, grade Ceramic hybrid. Bore (ID) 12 mm, outside diameter (OD) 21 mm, width 5 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 6801 (12x21x5mm) cartridge bearing. 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.
  • Silicon nitride (Si3N4) ceramic balls
  • SAE52100 steel / KS440 stainless steel rings
  • Low-friction polyamide cage
  • Ceramic-specific grease for reduced drag
  • 12x21x5mm (ID x OD x width), designation 6801
Designation6801
Bore (ID)12 mm
Outside diameter (OD)21 mm
Width5 mm
GradeCeramic hybrid
Seal type2RS (double rubber seal)
SKU SCV-BBBG-UB-6801-CS
Brand Black Bearing
Shipping Weight 0.0500kg
Shipping Width 0.160m
Shipping Height 0.060m
Shipping Length 0.220m