High-Speed NSK Angular Contact Ball Bearings 7212 to 7215

High-Speed NSK Angular Contact Ball Bearings 7212 to 7215

NSK angular contact ball bearings 7212 to 7215 are built for high-speed machine tool applications, providing exceptional precision, durability, and load-handling capabilities. These bearings are designed to handle both axial and radial loads, making them suitable for various industrial machinery.

Features and Specifications:

• Contact Angle Options: Available in contact angles of 15° (C), 30° (A), 40° (B), and a special 25° (A5). A larger contact angle allows for increased axial load-handling capacity.
• Material and Construction: Made from high-quality steel balls with retainers constructed of steel, brass, or engineering plastic. The retainer formation is either pressed or turned, depending on the bearing type and operating conditions.
• Load Capacity: These bearings are primarily designed to handle significant one-way axial loads. Bearings with larger contact angles have a higher capacity for bearing heavy loads.
• Bearing Types: Designed to fit various applications with multiple configurations:
  • Single Row Angular Contact Ball Bearing
  • Matched Angular Contact Ball Bearing
  • Double Row Angular Contact Ball Bearing
  • Four-Point Contact Ball Bearing
• Combination Options:
  • DF: Face-to-face combination
  • DB: Back-to-back combination
  • DT: Tandem combination
  • SU: Single, free combination
  • DU: Dual column, free combination
  • 3-Column Combinations: DBD, DFD, DTD
  • 4-Column Combinations: DBB, DFF, DBT, DFT, DTT
• Precision and Preload:
  • C10: Standard preloaded for improved performance
  • C9: Light preloaded, suitable for low torque applications
  • PN7A: Standard precision (equivalent to ISO4 class)
  • PN7B: Special control precision for inner and outer diameter variations (ISO4 grade, SU combination)

Applications:

• Suitable for use in various mechanical industries, including:
  • Metallurgical machinery
  • Mining equipment
  • Paper-making machinery
  • Textile machinery
• Machine Tool Applications: Specifically designed for ball screw support in machine tools, ensuring high-speed operation with precise motion control.

Key Specifications:

• Inner Diameter: Starting from 25 mm (0.98 inches)
• Contact Angle: Available in options of 15°, 30°, 40°, and special 25° for flexible load-handling capacities.
• Thrust Angle: Provides optimal performance in high thrust applications with a variety of combination options.

Keywords: NSK bearings, high-speed bearings, angular contact ball bearings, machine tool bearings, axial load, radial load, precision bearings, industrial machinery.