Enduro 24X37 ABEC-3 Sealed Bearing. Replacement bearing for Wheels Mfg bottom brackets for 24mm (Shimano) and 22mm/24mm (SRAM GXP) spindle cranks. ABEC-3 bearings are the most economical bearing Enduro offers but are extremely tough and durable. Grade 10 chromium steel balls are within 10/1,000,000" round. These are twice as round as the industry standard. 52100 high carbon chromium alloy races go through a vacuum de-gassing process resulting in the purest chromium alloy steel, hardened to R-62. Keeping everything together are riveted steel retainers and sealed with LLB type seals.
Dimensions: OD: 37mm / ID: 24mm / Width: 7mm - ABEC-3 - Grade 10, 5/32" chromium steel balls