ENDURO CH 689 2RS CERAMIC ABEC-3 RADIAL (X) MINI BEARING - 9 X 17 X 5MM
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This ABEC-5 ceramic-hybrid bearing incorporates deep-groove races made from 52100 high-carbon chromium alloy, combined with grade 5 silicon-nitride ceramic balls. It includes dual seals to protect against external contaminants and retain 90% filled Kluber NBU52, a waterproof, ultra-smooth grease. The Si3N4 ceramic balls minimize bearing wear and extend service life by preventing steel-to-steel contact inside the bearing.
This radial bearing has commonly served as both a hub and pivot bearing, although the MAX-type variant is more optimally designed for suspension applications.
The Enduro bearing series offers options in high-carbon chromium steel, 440C stainless steel, ceramic-hybrid, and XD-15 configurations with ceramic or stainless steel balls. Each bearing is engineered with the deepest possible groove races to fit larger balls and features dual-lip seals that engage a micro-groove, creating a complete labyrinth seal for enhanced protection against contaminants and environmental exposure.
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