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Super Precision Angular Contact Ball Bearings 71917 ACEGA/P4A

Super Precision Angular Contact Ball Bearings 71917 ACEGA/P4A

The 71917 ACEGA/P4A is a super precision angular contact ball bearing with an 85mm bore and 120mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 6322 lbf and operates smoothly at speeds up to 28,000 RPM.

With a 25° contact angle and extra-light preload, it offers excellent accuracy for demanding applications. The open design and phenolic cage ensure durability and easy maintenance.

This bearing is ideal for high-speed machinery like spindles or precision tools, where low friction and stability are crucial. It works in temperatures from -30°C to 110°C and comes pre-lubricated for immediate use.

Weighing 0.5kg, it’s part of a universal matching set, suitable for back-to-back, face-to-face, or tandem arrangements. Compliant with P4A tolerance standards, it’s a reliable choice for precision engineering.

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Product Parameters

  • Part Number 71917 ACEGA/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 85 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 120 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 18 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 11.112 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 6322 lbf
  • Static Radial Load 4860 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 28000 rpm
  • Weight 0.5 kg
  • Price（$） 213.822
Super Precision Angular Contact Ball Bearings 71917 ACEGA/P4A dimension drawing
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Features

Performance Features of 71917 ACEGA/P4A Bearing

71917 ACEGA/P4A Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
The chrome steel rings and balls ensure durability and smooth operation under dynamic radial loads up to 6322 lbf.

Its phenolic cage maintains ball alignment, reducing friction and wear during high-speed rotation.
With a maximum speed of 28,000 rpm, it delivers reliable performance in precision tasks.

The extra light preload (Class A) enhances precision, making it suitable for demanding machinery.
Its open design allows for easy lubrication, ensuring consistent performance over time.

71917 ACEGA/P4A Bearing operates efficiently in temperatures ranging from -30°C to 110°C.
The P4A tolerance class guarantees high precision, meeting strict industry standards.

Application

Key Fields for 71917 ACEGA/P4A Bearing
71917 ACEGA/P4A Bearing is widely used in high-speed machine tools, where its precision and angular contact design ensure smooth operation. The open seal type allows for efficient lubrication, making it suitable for continuous use.

In robotics, 71917 ACEGA/P4A Bearing supports articulated arms, providing stability and accuracy in repetitive movements. Its phenolic cage reduces friction, enhancing performance in automated systems.

For aerospace applications, 71917 ACEGA/P4A Bearing handles radial and axial loads in components like landing gear systems. The P4A tolerance class ensures reliability under demanding conditions.

Medical imaging devices benefit from 71917 ACEGA/P4A Bearing’s low noise and high-speed capabilities. The chrome steel construction offers durability in sensitive environments.

In automotive testing equipment, 71917 ACEGA/P4A Bearing’s extra light preload improves measurement accuracy. Its universal matching feature simplifies installation in various configurations.

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