High-precision 440C Stainless Steel Constant Cross-section Bearings SF-AR0 Series Products

AISI 440C stainless steel thin section bearings are designed for applications requiring corrosion resistance, wear resistance and high running accuracy. The rings and balls can be manufactured from AISI 440C stainless steel in accordance with AMS 5630. This material is suitable for precision bearing arrangements where resistance to rusting and stable rolling contact performance are important. The final bearing selection should be based on the actual load, speed, lubrication, contamination level and operating environment.

The key performance of AISI 440C stainless steel thin section bearings depends on bearing precision. Precision classes are defined in accordance with ISO standards, with P5 and P4 representing established precision grades for this series. Bearing precision is mainly determined by raceway grinding quality, geometrical tolerances and surface waviness, which directly affect radial and axial runout. A higher precision class can effectively reduce vibration and running torque, and help minimize accuracy drift during long-term operation. During manufacturing, raceway dimensional deviations are strictly controlled to achieve micron-level rotational accuracy. The appropriate precision class should be selected according to the actual rotational accuracy and positioning requirements of the equipment.

We can supply high-precision hybrid ceramic ball bearings, ultra-thin wall bearings, servo motor bearings, stainless steel precision bearings, vacuum pump bearings, magnetic levitation bearings, thin-walled crossed roller bearings, reactor bearings, all-ceramic bearings, food and beverage bearings, new energy vehicle bearings, excavator bearings, and construction machinery bearings. We also undertake custom-made bearings of special specifications to meet different working conditions.