NSK Angular Contact Bearings with Sealing 7804, 7805, 7806, 7807

NSK Angular Contact Bearings with Sealing 7804, 7805, 7806, 7807

NSK angular contact bearings 7804, 7805, 7806, and 7807 with sealing are engineered for high-speed performance, offering enhanced precision, durability, and protection against contaminants. The sealed design prevents dust, moisture, and debris from entering the bearing while maintaining lubrication, thereby extending its operational life. These bearings are designed to handle both axial and radial loads, making them suitable for various industrial applications.

Features and Specifications:

• Sealed Design: Incorporates seals to retain lubrication and keep out contaminants like dust and moisture, reducing maintenance and enhancing the bearing's lifespan.
• 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 a greater capacity for handling higher axial loads.
• Material and Construction: Made from high-quality steel balls with retainers constructed from steel, brass, or engineering plastic. The retainers are formed using pressing or turning techniques, depending on the bearing design and application conditions.
• Load Capacity: Engineered to handle substantial one-way axial loads. A larger contact angle increases the bearing’s ability to support heavy loads efficiently.
• Bearing Types: Available in several 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 enhanced stability
  • C9: Light preloaded, suitable for low-torque applications
  • PN7A: Standard precision (ISO4 class equivalent)
  • PN7B: Special controlled precision for specific inner and outer diameter variations (ISO4 grade, SU combination)

Applications:

• Industrial Machinery: Ideal for use in:
  • Metallurgical machinery
  • Mining equipment
  • Paper-making machinery
  • Textile machinery
• Machine Tool Applications: Perfectly suited for ball screw support in machine tools, delivering high-speed operation, reliable sealing for contamination prevention, and precision control.

Key Specifications:

• Inner Diameter: Starting from 25 mm (0.98 inches)
• Contact Angle: Options include 15°, 30°, 40°, and a special 25° for versatile load-handling capabilities.
• Sealing: Dust-proof and moisture-resistant seals ensure optimal protection and an extended operational lifespan.

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