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Super Precision Angular Contact Ball Bearings 71911 CEGA/P4A

Super Precision Angular Contact Ball Bearings 71911 CEGA/P4A

The 71911 CEGA/P4A is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, crafted from durable chrome steel. It features a 15° contact angle and is designed for angular contact loads, handling up to 3510 lbf dynamically.

With a maximum speed of 34,000 RPM, it spins smoothly and efficiently. The phenolic cage ensures quiet operation and long service life, even in demanding conditions. Its open design allows for easy lubrication and maintenance.

This bearing is ideal for high-precision applications like machine tool spindles or high-speed motors. It operates reliably in temperatures from -30°C to 110°C, making it versatile for various environments.

Weighing just 0.17kg, it’s lightweight yet robust. The P4A tolerance class ensures exceptional accuracy, and it’s interchangeable with SKF bearings for easy replacement. Suitable for universal matching in back-to-back, face-to-face, or tandem arrangements.

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Product Parameters

  • Part Number 71911 CEGA/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 55 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 80 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 13 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 mm
  • Ball Qty 21
  • Contact Angle 15°
  • 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 3510 lbf
  • Static Radial Load 2385 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.17 kg
Super Precision Angular Contact Ball Bearings 71911 CEGA/P4A dimension drawing
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Features

Performance Features of 71911 CEGA/P4A Bearing

71911 CEGA/P4A Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.

Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction for smoother operation.

With a dynamic radial load capacity of 3510 lbf, it handles demanding conditions reliably.

The bearing supports speeds up to 34,000 rpm, making it suitable for high-performance machinery.

How Does 71911 CEGA/P4A Bearing Achieve High Precision?

71911 CEGA/P4A Bearing meets P4A tolerance standards, ensuring exceptional precision in critical applications.

Its extra light preload (Class A) minimises vibration, enhancing performance in high-speed environments.

The open design allows for easy lubrication, maintaining optimal performance over time.

With 21 chrome steel balls, it balances load capacity and smooth rotation effectively.

Engineered for Precision: 71911 CEGA/P4A Bearing

71911 CEGA/P4A Bearing’s chrome steel construction provides excellent wear resistance and long service life.

Its compact size (55 mm×80 mm×13 mm) makes it ideal for space-constrained applications.

The bearing operates efficiently within a temperature range of -30°C to 110°C.

Weighing just 0.17 kg, it offers a lightweight solution without compromising strength.

Chrome Steel vs Phenolic Cage: Benefits of 71911 CEGA/P4A Bearing

71911 CEGA/P4A Bearing combines chrome steel rings with a phenolic cage for reduced friction and noise.

This material pairing ensures reliable performance in high-speed applications up to 34,000 rpm.

The bearing’s universal matching capability allows flexible arrangement options.

Its static radial load capacity of 2385 lbf provides stability under varying conditions.

Application

Super Precision Angular Contact Ball Bearings 71911 CEGA/P4A are commonly used in high-speed machine tools, where their 15° contact angle ensures accurate radial and axial load handling.
The open design and phenolic cage make them suitable for applications requiring minimal friction, such as precision spindles.

In automotive systems, 71911 CEGA/P4A Bearings support components like electric motors and transmissions, thanks to their extra light preload and high-speed capabilities.
Their metric sizing and universal matching options allow for flexible installation in various vehicle models.

For robotics and automation, 71911 CEGA/P4A Bearings provide reliable performance in robotic arms and CNC machines.
The chrome steel construction and P4A tolerance class ensure long-lasting precision in demanding environments.

Medical imaging devices benefit from 71911 CEGA/P4A Bearings’ smooth operation and low noise levels.
The lubricated design and temperature range make them ideal for sensitive equipment requiring consistent performance.

In aerospace applications, 71911 CEGA/P4A Bearings are valued for their ability to handle high speeds and angular loads.
The lightweight phenolic cage and chrome steel balls contribute to their durability in extreme conditions.

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