Ultra-Thin High-Speed Miniature Deep Groove Bearings (691-699Z Series)
Precision-engineered with thin-walled chromium steel for reduced weight without sacrificing durability. Ideal for high-RPM applications like drones, RC models, and micro motors. Features advanced low-friction sealing (Z-type) to extend lifespan in dusty or humid conditions. Mirror-polished raceways ensure smooth operation under 20,000 RPM. Perfect for compact spaces in robotics, medical devices, and automotive sensors. Bulk pricing available for industrial OEMs—global wholesale leader with unbeatable unit costs.