High-Speed NSK Angular Contact Ball Bearings 71912 to 71915

High-Speed NSK Angular Contact Ball Bearings 71912 to 71915

These NSK angular contact ball bearings are designed for high-speed machinery, offering excellent precision and load capacity. They are suitable for various industrial applications, including metallurgical, mining, and paper-making machinery. The contact angle options provide flexibility in handling both axial and radial loads.

Features and Specifications:

• Contact Angle Options: Bearings are available with contact angles of 15° (C), 30° (A), 40° (B), and 25° (A5) to accommodate different load capacities. The larger the contact angle, the greater the axial load-bearing capability.
• Material and Construction: Bearings use high-quality steel balls and come with steel, brass, or engineering plastic retainers. The retainers are formed using pressing or turning, depending on the application and conditions.
• Load Capacity: Primarily designed to handle significant one-way axial loads. The larger the contact angle, the better the bearing's ability to support heavy loads.
• Bearing Types: Available in various types to suit multiple 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
  • C9: Light preloaded for low torque style
  • PN7A: Standard precision (ISO4 class equivalent)
  • PN7B: Special controlled precision for specific diameter variations (ISO4 grade, SU combination)

Applications:

• Ideal for machinery where high-speed performance and load capacity are crucial, including:
  • Metallurgic machinery
  • Mining equipment
  • Paper-making machinery
  • Exile machinery

Key Specifications:

• Inner Diameter: 25 mm (0.98 inches)
• Outer Diameter: 62 mm (2.44 inches)
• Thrust Angle: 60°
• Standard: Equivalent to ISO4 precision grade.

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