2Pcs S693 Hybrid Ceramic Ball Bearing, ABEC3 4Mm Stainless Steel Bearing

Description: Ultra High Hardness: Si3N4 balls offer exceptional hardness for excellent wear and corrosion resistance, complemented by the AISI440C stainless steel outer ring structure to enhance bearing stability and lifespan. High Precision: ABEC3 bearings, with tight dimensional tolerances, ensure smooth movement with minimal friction, making them suitable for applications that require reliable rotation and durability. Lightweight Design: The use of lightweight materials reduces bearing stress, improving equipment efficiency. Easy installation & replacement. Wide Applications: Suitable for skateboards, power tools, high-speed motors, cryogenic engineering, industrial robots, fishing gear, small motors, etc. Specification: Material: Si3N4 Balls and AISI440C Stainless Steel Outer Ring Inner Diameter: 3 mm/0.12 inch Outer Diameter: 8 mm/0.31 inch Overall Thickness: 4 mm/0.16 inch Package Content: 2 Pcs x Hybrid Ceramic Ball Bearing