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Super Precision Angular Contact Ball Bearings 71912 ACEGA/P4A

Super Precision Angular Contact Ball Bearings 71912 ACEGA/P4A

The 71912 ACEGA/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 angular contact loads, handling up to 3442 lbf dynamically.

With a maximum speed of 36,000 RPM, it operates smoothly in temperatures ranging from -30°C to 110°C. The open design and phenolic cage ensure durability and easy maintenance.

This bearing is part of a universal matching set, suitable for back-to-back, face-to-face, or tandem arrangements. Its extra light preload (Class A) makes it ideal for high-precision applications like machine tools or spindles.

Weighing just 0.19kg, it’s lightweight yet robust, and interchangeable with SKF bearings for easy replacements. Compliant with P4A tolerance standards, it offers reliable performance in demanding conditions.

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Product Parameters

  • Part Number 71912 ACEGA/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 23
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 3442 lbf
  • Static Radial Load 2475 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 36000 rpm
  • Weight 0.19 kg
  • Price（$） 19.467
Super Precision Angular Contact Ball Bearings 71912 ACEGA/P4A dimension drawing
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Features

Performance Features of 71912 ACEGA/P4A Bearing

71912 ACEGA/P4A Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability under dynamic radial loads up to 3442 lbf.

The phenolic cage maintains ball alignment, enhancing smooth operation at high speeds up to 36,000 rpm.
With a precision P4A tolerance class, it delivers consistent performance in demanding conditions.

71912 ACEGA/P4A Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its open design allows for easy lubrication, reducing maintenance needs.

The bearing’s universal matching capability supports various configurations like back-to-back or tandem arrangements.
This flexibility makes it suitable for diverse precision engineering applications.

Application

Industrial Uses of 71912 ACEGA/P4A Bearing
71912 ACEGA/P4A Bearing is commonly used in high-speed machine tools, where its precision and extra light preload ensure smooth operation. The open design allows for efficient lubrication, extending service life in demanding conditions.

In robotics, 71912 ACEGA/P4A Bearing provides reliable angular contact support for robotic arms, enhancing movement accuracy. Its phenolic cage reduces friction, making it suitable for repetitive tasks.

For medical imaging devices, 71912 ACEGA/P4A Bearing’s chrome steel construction offers stability under radial loads. The P4A tolerance class ensures consistent performance in critical applications.

Automotive vs Aerospace: Applications of 71912 ACEGA/P4A Bearing
In automotive systems, 71912 ACEGA/P4A Bearing supports components like steering columns, where its high-speed capability is beneficial. The metric sizing ensures compatibility with various vehicle designs.

Aerospace applications benefit from 71912 ACEGA/P4A Bearing’s lightweight and precision, ideal for flight control systems. Its temperature range suits both ground and in-flight conditions.

Q&A

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