NSK Angular contact ball high speed machine tool bearings 7004

JAPAN NSK 7004 High-Speed Angular Contact Ball Bearings for Machine Tools

Product Overview:

The JAPAN NSK 7004 Angular Contact Ball Bearings are designed for high-speed machine tool applications, providing exceptional load capacity and stability. With various contact angles and material options, they are perfect for handling one-way axial loads, making them essential for precision machinery.

Key Features:

• Contact Angle Options: Available in 15°, 30°, and 40° contact angles, represented by C, A, and B. Special versions with a 25° contact angle are denoted as A5. The greater the contact angle, the higher the axial load capacity.
• Robust Load Handling: Ideal for heavy one-way axial loads, ensuring reliable performance in demanding industrial environments.
• Material Selection: Constructed from steel, brass, or engineering plastic, tailored to different use cases. Depending on application requirements, they can be produced through pressing or turning methods.
• Versatile Bearing Types: The 7004 series includes single-row, matched, double-row, and four-point contact ball bearings for various applications.

Applications:

• Widely used in industries such as:
  • Metallurgical machinery
  • Mining machinery
  • Paper-making machinery
  • Textile machinery

Specifications:

• Angular Contact Thrust Ball Bearing: Specially designed for ball screw support in machine tool applications.
• Brand: NSK 25TAC62BSBC10PN7A
  • 25: Inner diameter size in mm
  • TAC: Thrust angular contact ball bearing with a 60° contact angle
  • 62: Outer diameter size in mm
  • B: Internal structure style
  • DF: Denotes various bearing combinations (face-to-face, back-to-back, tandem)
  • C10: Standard preloaded for stability
  • C9: Light preloaded with low torque
  • PN7A: Standard precision equivalent to ISO4 class
  • PN7B: Special control precision (ISO4 grade, specific to SU combinations)

Bearing Combinations:

• Single (SU) and Double (DU) Columns: Suitable for various free combinations.
• Back-to-Back (DB) and Face-to-Face (DF): Provides stability for different application requirements.
• Three-Column (DBD, DFD, DTD) and Four-Column (DBB, DFF, DBT, DFT, DTT) Combinations: Enhanced load-bearing capabilities for specialized uses.

Bearing Types Include:

1. Single-row angular contact ball bearings.
2. Matched angular contact ball bearings.
3. Double-row angular contact ball bearings.
4. Four-point contact ball bearings.

Advantages of Angular Contact Ball Bearings:

1. High Load Capacity: Designed to bear higher loads than deep groove ball bearings of the same size.
2. Versatile Load Handling: Suitable for radial-axial combined loads or pure thrust loads.
3. High Speed and Low Friction: Optimized for smooth operation with high limiting speed and minimal friction.

Keywords: NSK 7004 Angular Contact Ball Bearings, High-Speed Bearings, Machine Tool Bearings, Industrial Bearings, Load-Bearing Capacity