71903 LLB - ABEC 5

The Enduro Bearings 71903 LLB - ABEC 5 offers a significant upgrade in performance from the ABEC 3 series. Crafted with military-grade precision, these bearings feature HRC-64 hardened Grade 5 Chromium Steel Balls and 52100 High-Carbon Chromium-Alloy mirror-polished races. This combination ensures that the Enduro Bearings 71903 LLB - ABEC 5 operates with tolerances twice as tight as ABEC 3, providing a noise-free experience. The Graphite/Nylon ball retainers allow for nearly frictionless movement and continuous lubrication, extending the bearing's lifespan.

• Bearing Code: 7903 (71903)
• Dimensions: 17mm x 30mm x 7mm
• ABEC: 5
• Grade: 5
• Seals: LLB
• Grease: Kyodo Yushi PS-2
• Application: Hubs, Bottom Brackets
• Weight: 15.30g