|Dimensions - d (inside diameter)||12mm|
|Dimensions - D (outside diameter)||24mm|
|Dimensions - B (width)||6mm|
Original Enduro single row ball sealed bike bearing 12mm inside x 24mm outside x 6mm width, also known as 69012RS, 6901LLB
Grade 10 Chromium Steel Balls:
High precision balls are within 10/1,000,000″ round, twice as round as the industry standard, at it's highest level.
52100 High Carbon Chromium Alloy Races:
Vacuum de-gassed process for the purest chromium alloy steel, hardened to R-62, extremely tough and very durable. Polished to a mirror finish for ABEC-3 precision and noiseless movement.
Riveted Steel Retainer for toughness, ABEC-3 tolerances and noise tested, C-3 or C-N Internal Clearance.
The letters after the bearing number designate the type of seals that are used in the bearing.
“LLB” is a double-lip type seal making light contact, and also rides in a groove making a labrinth
seal. “2RS” litterally means “Two Rubber Seals”