3206 Angular Contact Ball Bearings

3206 Angular Contact Ball Bearing | 3206C / 3206AC / 3206B

The 3206 angular contact ball bearing is a double-row high-rigidity precision rolling bearing designed to handle combined radial and axial loads. It features a compact structure, higher rigidity and load capacity than single-row bearings, with low friction and low-noise stable operation. Ideal for space-limited medium and heavy-duty transmission systems, this bearing is available in 3206C, 3206AC, 3206B contact angle types and bearing steel/stainless steel materials for diverse industrial environments.

Difference Between 3206C, 3206AC and 3206B

3206C (15° Contact Angle): Features a 15° contact angle with ultra-low friction and excellent high-speed stability. It maintains high rotational precision with moderate axial load capacity, optimized for compact high-speed spindles and precision automated equipment.

3206AC (25° Contact Angle): Adopts a 25° contact angle with balanced radial and axial load resistance. It delivers stable composite load performance and outstanding versatility, acting as the universal cost-effective option for most precision machinery applications.

3206B (40° Contact Angle): Equipped with a 40° large contact angle for enhanced axial load capacity. It reliably withstands heavy axial thrust at low and medium speeds, perfect for compact equipment 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 3206 series bearings. Professional heat treatment provides high hardness, excellent wear resistance and strong fatigue resistance, ensuring stable precision and long service life in conventional dry industrial conditions.

Stainless Steel: Stainless steel 3206 bearings offer superior 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 greatly improves rigidity and load capacity compared with single-row bearings. Supports multi-directional combined radial and axial loads. Three contact angle specifications cover high-speed, universal and heavy axial load working conditions. Ensures high-precision, smooth and quiet operation. Dual material grades balance cost performance and anti-corrosion ability for various working environments.

Application Scenarios

3206 series double-row angular contact ball bearings are widely applied in compact precision motors, machine tool spindles, industrial pumps, compressors and precision automation machinery. Bearing steel models suit conventional indoor industrial equipment; stainless steel versions adapt to damp, sanitary and lightly corrosive environments. 3206C for high-speed precision operation, 3206AC for general universal use, and 3206B for heavy axial load equipment.