7200 Angular Contact Ball Bearings

7200 Angular Contact Ball Bearing | 7200C / 7200AC / 7200B

The 7200 angular contact ball bearing is a popular single-row precision bearing engineered to handle combined radial and axial loads. It delivers low friction, low noise and consistent high-speed stability, widely used for precision transmission and light industrial machinery. Offered in 7200C, 7200AC and 7200B contact angle types, as well as bearing steel and stainless steel materials, this bearing fits dry, humid and mildly corrosive working environments perfectly.

Difference Between 7200C, 7200AC and 7200B

7200C (15° Contact Angle): Features a 15° contact angle with ultra-low friction and excellent high-speed performance. It prioritizes high rotational precision with moderate axial load capacity, ideal for high-speed precision spindles and lightweight high-speed equipment.

7200AC (25° Contact Angle): Adopts a 25° contact angle with balanced radial and axial load bearing capacity. It provides stable composite load performance and strong versatility, serving as the universal cost-effective option for most standard precision machinery.

7200B (40° Contact Angle): Equipped with a 40° large contact angle for maximum axial load resistance. It reliably withstands heavy axial thrust at low to medium speeds, suitable for mechanical devices with offset and heavy axial loads.

Material Differences: Bearing Steel vs Stainless Steel

Bearing Steel (GCr15): GCr15 bearing steel is the standard material for 7200 series bearings. Professional heat treatment endows high hardness, superior wear resistance and strong anti-fatigue performance, maintaining stable precision and long service life in conventional dry industrial conditions.

Stainless Steel: Stainless steel 7200 bearings feature excellent rust-proof, oxidation and weak corrosion resistance. They effectively resist moisture, humid air and minor contamination to avoid precision loss and corrosion damage, perfect for food machinery, medical equipment and high-humidity sanitary working scenarios.

Product Features

Supports combined radial and axial multi-directional loads. Three contact angle specifications adapt to high-speed, universal and heavy axial load scenarios. High precision, smooth and quiet high-speed operation. Dual material options balance cost performance and anti-corrosion ability. Standard compact structure enables easy installation and replacement.

Application Scenarios

7200 series angular contact ball bearings are widely applied in precision small motors, instrument spindles, small pumps, compressors and precision automation equipment. Bearing steel models suit conventional indoor industrial machinery; stainless steel versions fit damp, sanitary and light corrosive environments. 7200C is for high-speed precision operation, 7200AC for general universal use, and 7200B for heavy axial load equipment.