Angular Contact Ball Bearing

Design Principles: Adopt raceways with preset contact angles and high-precision steel balls; the larger the contact angle, the stronger the axial load-bearing capacity and the weaker the high-speed performance, which can be selected according to working conditions; single-row models form a bidirectional load-bearing system through paired installation (face-to-face/back-to-back/tandem), while double-row models directly achieve bidirectional axial load bearing through symmetrical double-row steel ball design, no need for additional bearings. The integral inner/outer ring structure enhances rigidity and reduces cumulative assembly errors; raceways undergo precision grinding (Ra≤0.02μm), and the point contact between steel balls and raceways is optimized to balance load-bearing capacity and friction loss; the cage guides steel balls to move orderly, avoiding frictional interference and improving operational smoothness and stability at high speeds. Performance Features: Core Combined Load Bearing: Contact angle design + point contact optimization, capable of simultaneously bearing radial and unidirectional/bidirectional axial loads; double-row models with maximum axial load up to 3000 KN, adapting to the combined load requirements of medium-heavy equipment. Flexible Contact Angle Adaptation: 15° angle focuses on high speed (≤8000 rpm), 25°/30° angles balance high speed and load-bearing, 40° angle focuses on ultra-high axial load, covering multiple scenario needs. High Precision Positioning: P4-class ultra-precision rotational accuracy, radial runout ≤0.002 mm, axial runout ≤0.003 mm, meeting the micron-level positioning requirements of precision equipment. Long Service Life & Stability: Surface hardening treatment of GCr15 material, precision polishing of steel balls, fatigue life increased by 40% compared with conventional bearings, adapting to long-term continuous operation. High-Speed Adaptation: Optimized cage and raceway design, maximum speed up to 5000 rpm with grease lubrication and 8000 rpm with oil lubrication, meeting high-speed precision operation requirements. Customization Options: Supports non-standard size (inner diameter/outer diameter/width) customization, contact angle customization (15°/25°/30°/40°), corrosion-resistant material (SUS440C) customization, special lubrication solutions for high/low temperature, seal type upgrade (composite seal), and cage material customization (precision/high-speed dedicated).

Working Principle Ball Arrangement and Load Distribution: High-precision steel balls are evenly distributed along raceways with preset contact angles, guided by the cage for orderly movement; radial loads are evenly transmitted through point contact between steel balls and raceways, and axial loads are decomposed into radial and axial components through the contact angle, jointly borne by the raceway sides and steel balls; when single-row models are installed in pairs, bidirectional axial loads are balanced through different arrangement methods (face-to-face/back-to-back/tandem), and double-row models simultaneously bear bidirectional axial loads through symmetrical double-row steel balls, ensuring operational stability. Thermal Management and Sealing: Thermal Management: Precision grinding of raceways and steel balls + low-friction cage design reduce frictional heat generation, effectively controlling operating temperature rise (typical temperature rise ≤10°C); combined with the thermal stability of dedicated grease or circulating oil, it ensures thermal stability under ultra-high speed and long-time operation. Sealing Protection: Contact seals (2RS/ZZ) effectively block dust and liquid intrusion, adapting to complex industrial environments; non-contact seals (Z/RS) reduce high-speed operating resistance, meeting the needs of ultra-high speed precision operation; open design facilitates lubrication supply, adapting to clean heavy-load working conditions. Installation Adaptability: The inner and outer rings adopt standard interference fits with shafts and housings (shaft h7/housing bore H8), compatible with the assembly tolerance requirements of most precision industrial equipment; when single-row models are installed in pairs, different load directions can be adapted by adjusting the pairing method, and double-row models can be installed directly; standardized size design can directly replace similar imported bearings, adapting to the upgrading and transformation of existing equipment; different contact angles and lubrication schemes can be selected to accurately adapt to different working conditions such as high speed and heavy load.