Precision 1*4*1.6 mm Micro Bearing 691zz / 691-2rs – Industrial-Grade Performance
Ultra-compact 691 series deep groove ball bearing with 1mm inner diameter, 4mm outer diameter, and 1.6mm width. High-carbon chromium steel construction for exceptional durability and wear resistance. Optional 2RS rubber seals (691-2rs) provide dustproof protection and extended lifespan. Precision-ground raceways and polished balls ensure smooth rotation at up to 30,000 RPM. Ideal for high-speed printers, automotive sensors, miniature motors, and CNC equipment. Bulk pricing available for manufacturing plants – global wholesale leader with guaranteed lowest MOQ rates. OEM-compliant quality for industrial automation and micro-mechanical assemblies.
Key Applications:
Printer paper feed systems, drone motors, medical devices, robotics, and precision tooling.