3200 Angular Contact Ball Bearings

3200 Angular Contact Ball Bearing | 3200C / 3200AC / 3200B

The 3200 angular contact ball bearing is a double-row precision rolling bearing designed to sustain high combined radial and axial loads. It delivers low noise, low friction and rigid stable operation, ideal for compact heavy-load precision transmission systems. Available in 3200C, 3200AC and 3200B contact angle types with bearing steel and stainless steel options, this bearing operates reliably in standard, humid and mildly corrosive industrial environments.

Difference Between 3200C, 3200AC and 3200B

3200C (15° Contact Angle): Features a 15° contact angle with minimal friction and excellent high-speed stability. It provides high rotational precision and moderate axial load capacity, best suited for compact high-speed spindles and precision automated equipment.

3200AC (25° Contact Angle): Adopts a 25° contact angle with balanced radial and axial load performance. It offers stable composite load resistance and versatile performance, serving as the universal cost-effective option for most precision machinery applications.

3200B (40° Contact Angle): Equipped with a 40° large contact angle for maximum axial load capacity. It steadily withstands heavy axial thrust under low and medium speeds, perfect for compact machinery with offset loads and heavy axial force.

Material Differences: Bearing Steel vs Stainless Steel

Bearing Steel (GCr15): GCr15 bearing steel is the standard material for 3200 series bearings. Professional heat treatment ensures high hardness, outstanding wear resistance and strong fatigue resistance, maintaining stable precision and long service life in conventional dry industrial conditions.

Stainless Steel: Stainless steel 3200 bearings feature excellent rust-proof, anti-oxidation and weak corrosion resistance. They effectively resist moisture and minor contamination to prevent precision loss and corrosion failure, suitable for food machinery, medical equipment and high-humidity sanitary scenarios.

Product Features

Double-row structure improves overall load capacity and rigidity. Supports combined radial and axial multi-directional loads. Three contact angle specifications adapt to high-speed, universal and heavy axial load working conditions. Provides high precision, smooth rotation and low-noise operation. Dual material options balance cost performance and anti-corrosion ability for diverse usage scenarios.

Application Scenarios

3200 series angular contact ball bearings are widely used in compact precision motors, small machine tool spindles, industrial pumps, compressors and automated precision machinery. Bearing steel models fit conventional indoor industrial equipment; stainless steel versions adapt to damp, sanitary and lightly corrosive environments. 3200C for high-speed precision operation, 3200AC for general universal use, and 3200B for heavy axial load equipment.