High-Speed NSK Angular Contact Ball Bearings 7304 to 7307

High-Speed NSK Angular Contact Ball Bearings 7304 to 7307

NSK angular contact ball bearings 7304 to 7307 are designed for high-speed machine tool applications, offering enhanced precision, durability, and load-handling capability. Engineered to manage both axial and radial loads, these bearings are ideal for various industrial machinery applications where high-speed performance is crucial.

Features and Specifications:

• Contact Angle Options: Available in contact angles of 15° (C), 30° (A), 40° (B), and a special 25° (A5). Bearings with larger contact angles provide greater capacity for handling axial loads.
• Material and Construction: Made with high-quality steel balls and retainers available in steel, brass, or engineering plastic. The retainers are formed using pressing or turning techniques, depending on the bearing type and operating conditions.
• Load Capacity: Designed to handle substantial one-way axial loads. The larger the contact angle, the higher the bearing's capacity to support heavy loads.
• Bearing Types: Available in different configurations to suit various applications:
  • 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 enhanced operational stability
  • C9: Light preloaded, suitable for low torque applications
  • PN7A: Standard precision (ISO4 class equivalent)
  • PN7B: Special control precision for specific inner and outer diameter variations (ISO4 grade, SU combination)

Applications:

• Industrial Machinery: Suitable for use in industries such as:
  • Metallurgical machinery
  • Mining equipment
  • Paper-making machinery
  • Textile machinery
• Machine Tool Applications: Specifically designed to support ball screws in machine tools, offering high-speed performance and precise control.

Key Specifications:

• Inner Diameter: Starting from 25 mm (0.98 inches)
• Contact Angle: Options of 15°, 30°, 40°, and special 25° for versatile load-handling capabilities.
• Thrust Angle: Suitable for applications requiring high thrust capacity, with various combination options available for flexible use.

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