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Super Precision Angular Contact Ball Bearings 71908 ACE/P4ADBA

Super Precision Angular Contact Ball Bearings 71908 ACE/P4ADBA

The 71908 ACE/P4ADBA 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 as a matched pair for balanced performance.

This bearing handles radial loads up to 3398 lbf and spins smoothly at speeds up to 41,000 RPM, thanks to its phenolic cage and open design. Its extra-light preload ensures minimal friction during operation.

The P4A tolerance class guarantees high precision, making it ideal for applications like machine tools or high-speed spindles. It works in temperatures from -30°C to 110°C and is interchangeable with SKF bearings.

Weighing just 0.2kg, this pair is lightweight yet robust. Its 19 balls, each 6.35mm in diameter, provide reliable support for angular contact loads.

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Product Parameters

  • Part Number 71908 ACE/P4ADBA
  • 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 24 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 6.35 mm
  • Ball Qty 19
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 2 bearings <> DB
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 3398 lbf
  • Static Radial Load 2565 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 0.2 kg
Super Precision Angular Contact Ball Bearings 71908 ACE/P4ADBA dimension drawing
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Features

Performance Features of 71908 ACE/P4ADBA Bearing

71908 ACE/P4ADBA Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel construction ensures durability and resistance to wear under dynamic radial loads up to 3398 lbf.

The phenolic cage maintains ball alignment, reducing friction and enhancing performance at high speeds up to 41,000 rpm.
With an extra-light preload (Class A), it delivers smooth operation in precision tasks.

71908 ACE/P4ADBA Bearing operates reliably in temperatures from -30°C to 110°C, suitable for varied environments.
Its matched arrangement (2 bearings DB) provides stability and balanced load handling.

The open design simplifies lubrication, ensuring consistent performance with minimal maintenance.
Precision P4A tolerance guarantees accuracy, making it ideal for high-speed applications.

Application

Key Fields for 71908 ACE/P4ADBA Bearing
71908 ACE/P4ADBA Bearing is widely used in high-speed machine tools, where its precision and angular contact design ensure accurate spindle performance. The matched arrangement of two bearings provides stability under radial and axial loads.

In automotive applications, 71908 ACE/P4ADBA Bearing supports components like electric motors and transmissions, thanks to its extra light preload and high-speed capability. The phenolic cage reduces friction, enhancing efficiency.

For medical imaging devices, 71908 ACE/P4ADBA Bearing’s P4A tolerance class ensures smooth and quiet operation. Its chrome steel construction offers durability in demanding environments.

Automation systems benefit from 71908 ACE/P4ADBA Bearing’s reliability in robotic arms and CNC machines. The open design allows for easy lubrication, extending service life.

In consumer electronics, 71908 ACE/P4ADBA Bearing is found in high-performance printers and scanners. Its compact size and precision make it ideal for space-constrained applications.

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