NSK Angular contact ball high speed machine tool bearings 7004

JAPAN NSK High-Speed Angular Contact Ball Bearings – 7004 Series

Product Overview:

The JAPAN NSK 7004 Angular Contact Ball Bearings are specifically engineered for high-speed machine tool applications. These bearings are designed to handle high axial loads, making them ideal for precision machinery where stability and durability are crucial. With their various contact angles and material options, they ensure optimal performance in demanding conditions.

Key Features:

• Versatile Contact Angles: Available in 15°, 30°, and 40° contact angles, designated as C, A, and B, respectively. Special models include a 25° contact angle (A5). The greater the contact angle, the higher the axial load capacity.
• Robust Load Handling: Built to bear significant one-way axial loads, ideal for various mechanical and industrial applications.
• Material Options: Made from steel, brass, or engineering plastic, offering flexibility based on application requirements. Bearings can be formed by pressing or turning, depending on their intended use.
• Variety of Bearing Types: Includes single-row, matched, double-row, and four-point contact ball bearings to meet diverse needs.

Applications:

• Commonly used in mechanical industries, such as:
  • Metallurgical machinery
  • Mining machinery
  • Paper-making machinery
  • Textile machinery

Specifications:

• Angular Contact Thrust Ball Bearing: Ideal 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: Refers to different bearing combinations (face-to-face, back-to-back, or tandem).
  • C10: Standard preloaded.
  • C9: Lightly preloaded with low torque.
  • PN7A: Standard precision (ISO4 class equivalent).
  • PN7B: Special control precision (ISO4 grade, specific to SU combinations).

Bearing Combinations:

• Single (SU) and Double (DU) Columns: Free combinations for various use cases.
• Back-to-Back (DB) and Face-to-Face (DF): Designed for stability in various applications.
• Three-Column (DBD, DFD, DTD) and Four-Column (DBB, DFF, DBT, DFT, DTT) Combinations: For enhanced load-bearing capability.

Angular Contact Ball Bearings 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: Capable of handling higher loads compared to deep groove ball bearings of similar dimensions.
2. Versatile Load Handling: Suitable for bearing radial-axial combined loads or pure thrust loads.
3. Low Friction and High Speed: Designed for smooth operation with a high limiting speed and low operating friction.

Keywords: NSK Angular Contact Ball Bearings, High-Speed Bearings, 7004 Series, Machine Tool Bearings, Industrial Bearings