|Dimensions - d (inside diameter)||12.7mm|
|Dimensions - D (outside diameter)||28.58mm|
|Dimensions - B (width)||7.94mm|
Original Enduro bike bearing 11/2 x 1.1/8 x 5/16 inch width also known as KLNJ1/2-2RS KLNJ1/22RS R8LLB R8LLBU R8RS2 R82RS2
The entry standard for Enduro bearings. Enduro’s ABEC 3 bearings offer improved quality and performance over ABEC 1 bearings fitted by many OE manufacturers. Only the finest cycling components come standard with Enduro’s ABEC 3 bearings. With hardened chromium steel races, balls, and tough riveted steel retainers, these bearings are durable and the perfect low cost performance upgrade.
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” literally means “Two Rubber Seals”
Bearing Code: R8
Dimensions: 1/2 x 1.1/8 x 5/16
Grease: Mobile HP 222
Application: Hubs, Bottom Brackets