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Super Precision Angular Contact Ball Bearings 71908 ACB/P4A

Super Precision Angular Contact Ball Bearings 71908 ACB/P4A

The 71908 ACB/P4A is a super precision angular contact ball bearing with a 40mm bore and 62mm outer diameter, crafted from high-quality chrome steel. It features a 25° contact angle, designed to handle both radial and axial loads efficiently.

With a dynamic radial load capacity of 1141 lbf, it spins smoothly at speeds up to 43,000 RPM. The open design and phenolic cage ensure durability and easy maintenance.

This bearing is ideal for high-precision applications like machine tool spindles or robotics, where accuracy is key. It operates reliably in temperatures from -30°C to 110°C.

Weighing just 0.12kg, it’s lightweight yet robust. Compliant with P4 tolerance class (ABEC-7), it offers exceptional precision and is interchangeable with SKF bearings.

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Product Parameters

  • Part Number 71908 ACB/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 40 mm
  • Bore Dia Tolerance -0.006mm to 0
  • Outer Dia 62 mm
  • Outer Dia Tolerance -0.007mm to 0
  • Width 12 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 3.969 mm
  • Ball Qty 28
  • Contact Angle 25°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Available
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 1141 lbf
  • Static Radial Load 878 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 43000 rpm
  • Weight 0.12 kg
  • Price（$） 288.792
Super Precision Angular Contact Ball Bearings 71908 ACB/P4A dimension drawing
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Features

Why Choose 71908 ACB/P4A Bearing for Precision Tasks?

71908 ACB/P4A Bearing features a 25° contact angle, ideal for handling combined radial and axial loads with precision.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction for smoother operation.

With a P4 tolerance class, 71908 ACB/P4A Bearing delivers high accuracy, suitable for demanding applications.
The dynamic radial load capacity of 1141 lbf and maximum speed of 43,000 rpm highlight its performance.

71908 ACB/P4A Bearing operates efficiently within a temperature range of -30° to 110°C, adapting to various conditions.
Its open design allows for easy lubrication, ensuring consistent performance over time.

The matched arrangement option enhances stability, making 71908 ACB/P4A Bearing versatile for complex setups.
Weighing just 0.12 kg, it combines strength with a lightweight design.

Application

Common Applications of 71908 ACB/P4A Bearing
71908 ACB/P4A Bearing is widely used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The phenolic cage reduces friction, making it suitable for high-speed operations.

In robotics, 71908 ACB/P4A Bearing provides smooth motion control for articulated arms and joints. Its matched arrangement option allows for better load distribution in complex assemblies.

For medical imaging devices, 71908 ACB/P4A Bearing’s P4 tolerance class guarantees minimal vibration and noise. The chrome steel construction ensures long-term reliability in critical healthcare environments.

Automotive applications like electric motor shafts benefit from 71908 ACB/P4A Bearing’s high-speed capability. The 25° contact angle handles combined radial and axial loads efficiently.

In 3D printers, 71908 ACB/P4A Bearing’s precision enhances print head movement accuracy. The open design simplifies lubrication maintenance for prolonged service life.

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