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Super Precision Angular Contact Ball Bearings 71912 ACDGB/P4A

Super Precision Angular Contact Ball Bearings 71912 ACDGB/P4A

The 71912 ACDGB/P4A is a super precision angular contact ball bearing with a 60mm bore and 85mm outer diameter, crafted from high-quality chrome steel. It features a 25° contact angle and is designed for light preload applications, offering smooth operation at speeds up to 33,000 RPM.

Its open design allows for easy lubrication, while the phenolic cage ensures durability and reduced friction. The bearing handles dynamic radial loads up to 4185 lbf and static radial loads up to 3285 lbf, making it reliable for demanding tasks.

This bearing is part of a universal matching set, suitable for back-to-back, face-to-face, or tandem arrangements. Ideal for high-precision machinery like spindles or CNC equipment where accuracy is crucial.

Weighing just 0.19kg, it’s lightweight yet robust, and operates efficiently in temperatures from -30°C to 110°C. Compliant with P4A tolerance standards for exceptional performance.

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Product Parameters

  • Part Number 71912 ACDGB/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 60 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 85 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 13 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 mm
  • Ball Qty 24
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 3
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 4185 lbf
  • Static Radial Load 3285 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 33000 rpm
  • Weight 0.19 kg
  • Price（$） 122.157
Super Precision Angular Contact Ball Bearings 71912 ACDGB/P4A dimension drawing
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Features

Performance Features of 71912 ACDGB/P4A Bearing

71912 ACDGB/P4A Bearing is designed with a 25° contact angle, optimising its performance in angular contact applications.
The chrome steel rings and balls ensure durability and smooth operation under dynamic radial loads up to 4185 lbf.

Its phenolic cage maintains ball alignment, reducing friction and wear during high-speed rotations.
With a maximum speed of 33,000 rpm, it delivers reliable performance in precision tasks.

The bearing operates efficiently within a temperature range of -30°C to 110°C.
Its P4A tolerance class guarantees high precision and consistent performance.

71912 ACDGB/P4A Bearing is suitable for universal matching in various configurations.
The light preload design ensures smooth operation while minimising energy loss.

Application

Industrial Uses of 71912 ACDGB/P4A Bearing
71912 ACDGB/P4A Bearing is commonly used in high-speed machine tools, where its precision angular contact design ensures accurate spindle rotation. The light preload and P4A tolerance make it ideal for applications demanding minimal vibration.

In automotive applications, 71912 ACDGB/P4A Bearing supports performance in gearbox systems, particularly in high-RPM scenarios. Its chrome steel construction provides durability under angular loads, while the phenolic cage reduces friction.

For robotics, 71912 ACDGB/P4A Bearing excels in articulated arms requiring smooth, precise movement. The open design allows for easy lubrication, extending service life in continuous operation.

Medical imaging devices benefit from 71912 ACDGB/P4A Bearing’s low-noise performance and consistent accuracy. Its temperature stability ensures reliability in sensitive diagnostic equipment.

In aerospace components, 71912 ACDGB/P4A Bearing handles combined radial and thrust loads in control systems. The metric sizing and universal matching options simplify integration into various designs.

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