Precision SMR85ZZ Miniature Deep Groove Ball Bearing

Ultra-smooth stainless steel construction (Grade 420) resists corrosion for harsh environments. Hardened chrome steel balls (Grade 25) ensure <15μm radial runout for vibration-free operation.

Mirror-polished raceways reduce friction by 30% vs standard bearings. Dual rubber ZZ shields block dust while allowing high-speed rotation (18,000 RPM).

Perfect for dental tools, drone motors, RC cars, and miniature gearboxes. Vacuum-sealed packaging prevents oxidation during storage.

Exact dimensions (5x8x2.5mm) match industrial blueprints. Laser-etched part numbers for traceability. Bulk discounts available for OEM/wholesale buyers.