Precision Miniature Ball Bearing SK F6402-Z/2Z/RS/2RS
High-grade chrome steel construction ensures durability and smooth rotation under heavy loads. Double-sealed (2RS) or shielded (2Z) options provide superior dust and moisture resistance for extended lifespan. Ultra-precise deep groove design minimizes friction, ideal for high-speed micro applications like fishing reels, RC models, and precision instruments. Heat-treated races and polished balls deliver whisper-quiet operation, critical for sensitive equipment. Compact 4x12x4mm size fits tight spaces without sacrificing performance. OEM-grade quality at wholesale pricing—perfect for bulk orders.
Key Applications:
Micro motors, drone components, medical devices, DIY hobbies, and industrial miniaturized machinery. Stock up for unmatched value—global shipping, lowest prices guaranteed.