SW 604-2Z Miniature Deep Groove Ball Bearing | 4x12x4mm | Metal Shielded (ZZ) | High-Speed Precision
The SW 604-2Z bearing is a high-precision miniature deep groove ball bearing engineered for applications demanding low friction, high rotational accuracy, and exceptional reliability in compact assemblies. Featuring standard 4mm bore, 12mm outer diameter, and 4mm width, this component adheres strictly to ISO and ABMA dimensional standards. The deep raceway grooves and close conformity between the balls and raceways allow the bearing to handle moderate radial loads and minor axial loads in both directions. Constructed from high-grade bearing steel (SAE 52100) and precision-ground to P0 (ABEC-1) tolerance, the 604-2Z ensures smooth, quiet operation essential for sensitive instrumentation and electronic motors. The '2Z' designation confirms the inclusion of two non-contacting metal shields, designed to retain the factory lubricant while protecting internal components from dust and larger debris, making it a low-maintenance solution.
Optimized for equipment where size and weight constraints are critical, the SW 604-2Z excels in environments such as small servo motors, dental drills, laboratory testing apparatus, and robotics. Our robust shielding configuration guarantees reliable performance across a broad temperature range and significantly extends service life by preventing contamination ingress. SW bearings are manufactured under rigorous quality control processes, ensuring consistency in torque specifications and reduced vibration harmonics. Choosing the SW 604-2Z guarantees a durable, maintenance-reduced bearing solution that enhances the overall operational efficiency and longevity of miniature mechanical systems.
Key Features
Shielded (2Z) design maximizes lubricant retention and prevents gross contamination.
Precision engineered to ABEC-1 standards for reduced running noise and vibration.
Capable of high limiting speeds, suitable for rapid-cycle miniature motors and instruments.
Versatile deep groove geometry handles both radial and moderate axial loads.
Constructed from high-carbon chromium steel (52100) for superior wear resistance and durability.
