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Super Precision Angular Contact Ball Bearings 71912 CEGA/HCPA9A

Super Precision Angular Contact Ball Bearings 71912 CEGA/HCPA9A

The 71912 CEGA/HCPA9A is a super precision angular contact ball bearing with a 60mm bore and 85mm outer diameter, designed for high-speed applications. Its 15° contact angle and ceramic balls ensure smooth operation under radial loads up to 3668 lbf.

The open design and phenolic cage make it lightweight yet durable, capable of speeds up to 31,000 RPM. The extra-light preload (Class A) enhances precision, ideal for demanding setups.

This bearing works in temperatures from -30°C to 110°C and comes lubricated for immediate use. It’s interchangeable with SKF models and suits paired arrangements (back-to-back, face-to-face, or tandem).

Perfect for machine tools or high-speed spindles where accuracy and low friction matter. Weighing just 0.16kg, it balances performance and ease of handling.

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Product Parameters

  • Part Number 71912 CEGA/HCPA9A
  • 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 15°
  • Tolerance Class PA9A
  • 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 Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 3668 lbf
  • Static Radial Load 2655 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 31000 rpm
  • Weight 0.16 kg
Super Precision Angular Contact Ball Bearings 71912 CEGA/HCPA9A dimension drawing
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Features

Performance Features of 71912 CEGA/HCPA9A Bearing

71912 CEGA/HCPA9A Bearing is designed with a 15° contact angle, providing excellent angular contact performance.

Its chrome steel rings and ceramic balls ensure durability and smooth operation under high-speed conditions.

The phenolic cage maintains ball alignment, reducing friction and wear for extended service life.

With a maximum speed of 31,000 rpm, it is suitable for precision applications requiring high rotational accuracy.

How Does 71912 CEGA/HCPA9A Bearing Reduce Friction?

71912 CEGA/HCPA9A Bearing uses ceramic balls and a phenolic cage to minimise friction during operation.

The extra light preload ensures smooth performance while maintaining precision in angular contact applications.

Its open design allows for efficient lubrication, further reducing friction and heat generation.

This combination of features makes it ideal for high-speed, low-friction environments.

Engineered for Precision: 71912 CEGA/HCPA9A Bearing

71912 CEGA/HCPA9A Bearing meets PA9A tolerance standards, ensuring exceptional precision in demanding applications.

The ceramic balls and chrome steel rings provide a balanced combination of strength and smooth operation.

Its compact size (60 mm×85 mm×13 mm) makes it suitable for space-constrained precision machinery.

With universal matching options, it offers flexibility in various mounting configurations.

Steel vs Ceramic Bearings: Strengths of 71912 CEGA/HCPA9A Bearing

71912 CEGA/HCPA9A Bearing combines the durability of chrome steel rings with the low-friction benefits of ceramic balls.

This hybrid design offers improved performance over traditional all-steel bearings in high-speed applications.

The ceramic balls reduce weight and inertia while maintaining strength under radial loads up to 3668 lbf.

Its temperature range of -30°C to 110°C ensures reliable operation in various environments.

Application

Common Applications of 71912 CEGA/HCPA9A Bearing
71912 CEGA/HCPA9A Bearing is widely used in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction and heat buildup. The 15° contact angle ensures precise handling of combined radial and axial loads.

In robotics, 71912 CEGA/HCPA9A Bearing supports articulated arms, offering smooth motion control thanks to its extra-light preload. Its open design allows for easy lubrication, extending service life in continuous operation.

For aerospace components, 71912 CEGA/HCPA9A Bearing’s chrome steel rings and ceramic balls provide reliability under varying temperatures. The PA9A tolerance class makes it suitable for applications demanding tight precision.

Where Is 71912 CEGA/HCPA9A Bearing Used?
You’ll often find 71912 CEGA/HCPA9A Bearing in precision spindles for grinding machines, where its high-speed capability and low friction are key. The metric sizing ensures compatibility with European and Asian equipment.

In medical imaging devices, 71912 CEGA/HCPA9A Bearing’s consistent performance and low noise make it ideal for sensitive environments. The ceramic balls also minimise wear, reducing maintenance needs over time.

Built for Heavy-Duty Use: 71912 CEGA/HCPA9A Bearing
71912 CEGA/HCPA9A Bearing handles demanding loads in industrial pumps, with its dynamic radial load capacity of 3668 lbf. The phenolic cage resists corrosion, even in harsh chemical environments.

For automotive testing rigs, 71912 CEGA/HCPA9A Bearing’s temperature range (-30°C to 110°C) ensures stability under varying conditions. Its universal matching option simplifies assembly in complex setups.

Automotive vs Aerospace: Applications of 71912 CEGA/HCPA9A Bearing
In automotive transmissions, 71912 CEGA/HCPA9A Bearing supports high-speed shafts with minimal vibration. The ceramic balls reduce weight, improving fuel efficiency.

For aerospace actuators, 71912 CEGA/HCPA9A Bearing’s precision and reliability are critical. Its extra-light preload ensures smooth operation in flight control systems.

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