Angular Contact Ball Bearings: Features, Models, Classification & Applications

Angular contact ball bearings are high-precision rolling bearings designed to support combined radial and axial loads. They are divided into basic design single installation types and universal matched types for arbitrary pairing. With different contact angles and double-row structural options, these bearings feature high rigidity, adjustable preload and strong axial load capacity. Covering a full range of standard models, they are widely used in high-speed and precision mechanical equipment across various industries.

1. Main Features

•Dual Structural Design: Universal matched bearings are specially processed for tight pairing without shims. Any combination achieves preset clearance, uniform load distribution and stable preload, supporting back-to-back, face-to-face and tandem arrangements. Basic design bearings are only for single independent mounting and cannot be paired closely.

•Flexible Load Capacity: Single bearings withstand radial and unidirectional axial loads, while paired bearing units support stable bidirectional axial loads. Larger contact angles provide stronger axial bearing capacity.

•High Precision & High Speed: Optimized internal structure ensures high running accuracy, low noise and excellent high-speed performance, suitable for long-term precision operation.

2. Product Classification

•By Row Quantity: Single-row angular contact ball bearings, Double-row angular contact ball bearings

•By Structural Design: Universal matched type for arbitrary pairing, Basic design type for single independent installation

3. Full-Series Mainstream Models

Single-Row 7000 Series (Universal Matched): 7002AC, 7003AC, 7004AC, 7005AC, 7006AC, 7007AC, 7008AC, 7009AC, 7010AC

Single-Row High-Speed Models: 7202B, 7203B, 7204B, 7205B, 7206B, 7305B, 7306B, 7308B high contact angle bearings

Double-Row 3200 / 3300 Series: 3204A, 3205A, 3206A, 3208A, 3305A, 3306A, 3308A, 3310A dual-row precision bearings

Sealed & Precision Grade Models: 72042RS, 7205ZZ, 32062RS, P4/P5 high-precision universal pairing bearings

4. Wide Applications

Single-row bearings are commonly used in machine tool spindles, high-frequency motors, gas turbines, centrifugal separators, automobile front wheels, booster pumps, drilling platforms, food machinery and electromechanical coating equipment.

Double-row bearings are widely applied in oil pumps, air compressors, Roots blowers, transmissions, fuel injection pumps, printing machinery, planetary reducers, food packaging machinery and fine chemical precision equipment.

5. Product Advantages

Our angular contact ball bearings adopt standard and universal matched designs to meet single and combined mounting requirements. With optional contact angles and high load rigidity, full-size series deliver excellent interchangeability, high-speed stability and long service life, providing reliable precision transmission solutions for industrial high-precision machinery.