NSK Angular Contact Bearings with Sealing 7808 to 7811

NSK Angular Contact Bearings with Sealing 7808 to 7811

NSK angular contact bearings 7808 to 7811 with sealing are designed for high-speed applications, providing enhanced protection, precision, and durability. The sealed design ensures that contaminants like dust and moisture are kept out while retaining lubrication within the bearing, leading to extended operational life. These bearings efficiently handle both axial and radial loads, making them suitable for various industrial machinery.

Features and Specifications:

• Sealed Design: Equipped with seals to maintain lubrication and prevent contamination from dust, moisture, and other particles, thus enhancing bearing life and reducing maintenance requirements.
• Contact Angle Options: Available in contact angles of 15° (C), 30° (A), 40° (B), and a special 25° (A5). Bearings with larger contact angles offer greater capacity for axial load handling.
• Material and Construction: Constructed with high-quality steel balls, with retainers made from steel, brass, or engineering plastic. Retainers are formed using pressing or turning, depending on the bearing type and usage conditions.
• Load Capacity: Designed to handle substantial one-way axial loads. Larger contact angles provide increased load-bearing capability.
• Bearing Types: Available in various configurations to suit different application needs:
  • 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 control 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: Specially designed for ball screw support in machine tools, providing high-speed operation with precision control and reliable sealing to prevent contamination.

Key Specifications:

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

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