Super Precision Angular Contact Ball Bearings 71908 ACD/P4ATBTD

Super Precision Angular Contact Ball Bearings 71908 ACD/P4ATBTD

The 71908 ACD/P4ATBTD is a super precision angular contact ball bearing with a 40mm bore and 62mm outer diameter, crafted from durable chrome steel. It features a 25° contact angle and comes in a matched set of three bearings for heavy preload applications.

This bearing handles radial loads up to 5648 lbf and spins smoothly at speeds up to 41,000 RPM. Its phenolic cage ensures quiet operation and long service life, even under demanding conditions.

The open design allows for easy lubrication, making maintenance straightforward. It performs reliably in temperatures ranging from -30°C to 110°C.

Ideal for high-precision machinery like CNC spindles or grinding equipment, where accuracy and stability are crucial. Weighing just 0.33kg, it’s a robust yet lightweight solution for industrial applications.

Interchangeable with SKF bearings, it offers a dependable replacement option. The P4A tolerance class ensures exceptional precision for critical operations.

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Product Parameters

  • Part Number 71908 ACD/P4ATBTD
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 40 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 62 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 36 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 6.35 mm
  • Ball Qty 21
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 3 bearings <>> TBT
  • Number Of Bearings In Matched Set 3
  • Universal Matching Bearing No
  • Preload Heavy / Class D
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 5648 lbf
  • Static Radial Load 5400 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 0.33 kg

Features

Performance Features of 71908 ACD/P4ATBTD Bearing

71908 ACD/P4ATBTD Bearing is designed with a 25° contact angle, optimised for high-precision angular contact applications.
Its chrome steel construction ensures durability and reliable performance under heavy loads.

The matched arrangement of three bearings in a TBT configuration provides enhanced stability and load distribution.
With a dynamic radial load capacity of 5648 lbf, it handles demanding operational conditions with ease.

71908 ACD/P4ATBTD Bearing achieves a maximum speed of 41,000 rpm, making it suitable for high-speed applications.
The phenolic cage maintains ball alignment, reducing friction and extending service life.

Operating within a temperature range of -30°C to 110°C, it performs consistently in various environments.
Its P4A tolerance class ensures precision and smooth operation in critical machinery.

Application

Key Fields for 71908 ACD/P4ATBTD Bearing
71908 ACD/P4ATBTD Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The heavy preload and P4A tolerance make it suitable for demanding industrial applications.

In automotive systems, 71908 ACD/P4ATBTD Bearing supports components like wheel hubs and transmissions, offering reliable performance under angular loads. Its metric sizing ensures compatibility with a variety of vehicle designs.

For automation equipment, 71908 ACD/P4ATBTD Bearing provides smooth operation in robotic arms and CNC machines. The phenolic cage enhances durability while maintaining low friction.

Medical imaging devices benefit from 71908 ACD/P4ATBTD Bearing’s precision and stability, crucial for consistent performance in diagnostic equipment. The chrome steel construction ensures long-term reliability.

In aerospace applications, 71908 ACD/P4ATBTD Bearing handles high-speed rotations with minimal vibration. Its matched set configuration of three bearings offers balanced load distribution.

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