7205 Angular Contact Ball Bearings
| 7205 Angular Contact Ball Bearings | |||
|---|---|---|---|
| Part Number | 7205 | Weight(Kg) | 0.114 |
| d | 25 | Dynamic Load Co(N) | 16800 |
| D1 | 52 | Static Load Cor(N) | 10500 |
| B | 15 | Grease Speed | 18000 |
| R | 1 | Oil Speed | 24000 |
7205 Angular Contact Ball Bearing | 7205C / 7205AC / 7205B
The 7205 angular contact ball bearing is a single-row high-precision rolling bearing designed to support combined radial and axial loads. It offers low friction, low noise and outstanding high-speed stability, widely utilized in precision transmission and medium-load industrial machinery. Available in 7205C, 7205AC and 7205B contact angle versions, plus bearing steel and stainless steel material options, this bearing delivers consistent and reliable performance in dry, humid and mildly corrosive working environments.
Difference Between 7205C, 7205AC and 7205B
7205C (15° Contact Angle): Features a 15° contact angle with ultra-low friction and premium high-speed performance. It maintains excellent rotational precision with moderate axial load capacity, ideal for high-speed spindles and precision automated equipment.
7205AC (25° Contact Angle): Adopts a 25° contact angle with balanced radial and axial load bearing capacity. It provides stable composite load resistance and versatile performance, acting as the cost-effective universal option for most standard precision machinery applications.
7205B (40° Contact Angle): Equipped with a 40° large contact angle for enhanced axial load resistance. It reliably bears heavy axial thrust at low to medium speeds, perfectly suited for equipment with offset loads and heavy axial force requirements.
Material Differences: Bearing Steel vs Stainless Steel
Bearing Steel (GCr15): GCr15 bearing steel is the standard material for 7205 series bearings. Strict heat treatment grants high hardness, superior wear resistance and strong anti-fatigue performance, ensuring stable precision and extended service life in conventional dry industrial conditions.
Stainless Steel: Stainless steel 7205 bearings deliver excellent rust-proof, anti-oxidation and weak corrosion resistance. They effectively resist moisture, humid air and minor contamination to prevent precision loss and corrosion damage, suitable for food processing machinery, medical equipment and high-humidity sanitary working scenarios.
Product Features
Supports multi-directional combined radial and axial loads. Three contact angle specifications cover high-speed, universal and heavy axial load working conditions. Provides high precision, smooth rotation and quiet operation. Dual material designs balance cost performance and anti-corrosion capability. Standard compact structure enables simple installation and quick replacement.
Application Scenarios
7205 series angular contact ball bearings are widely used in precision motors, machine tool spindles, industrial pumps, compressors and automated precision machinery. Bearing steel models apply to conventional indoor industrial equipment; stainless steel versions adapt to damp, sanitary and lightly corrosive environments. 7205C is optimized for high-speed precision operation, 7205AC for general universal use, and 7205B for heavy axial load mechanical equipment.
