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Super Precision Angular Contact Ball Bearings 71911 CEGA/HCPA9AL

Super Precision Angular Contact Ball Bearings 71911 CEGA/HCPA9AL

The 71911 CEGA/HCPA9AL is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, designed for high-speed applications. Its 15° contact angle and ceramic balls ensure smooth operation under radial loads up to 3510 lbf.

The bearing features an open design and phenolic cage, making it lightweight yet durable. It can handle speeds up to 34,000 RPM and operates in temperatures from -30°C to 110°C.

With an extra light preload (Class A), this model is ideal for precision machinery like spindles or CNC equipment. It’s interchangeable with SKF bearings and comes lubricated for immediate use.

Weighing just 0.14kg, it’s suitable for matched arrangements (back-to-back, face-to-face, or tandem). Compliant with PA9A tolerance standards for reliable performance.

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Product Parameters

  • Part Number 71911 CEGA/HCPA9AL
  • 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 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 3510 lbf
  • Static Radial Load 2385 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.14 kg
Super Precision Angular Contact Ball Bearings 71911 CEGA/HCPA9AL dimension drawing
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Features

Performance Features of 71911 CEGA/HCPA9AL Bearing

71911 CEGA/HCPA9AL Bearing is crafted with chrome steel rings and ceramic balls, ensuring smooth operation under high-speed conditions.
Its 15° contact angle allows for efficient handling of combined radial and axial loads.
The phenolic cage maintains ball alignment, reducing friction and wear.
With a maximum speed of 34,000 rpm, it excels in precision applications.

How Does 71911 CEGA/HCPA9AL Bearing Reduce Friction?

71911 CEGA/HCPA9AL Bearing uses ceramic balls and a phenolic cage to minimise friction during high-speed rotation.
The extra light preload ensures smooth operation without unnecessary resistance.
Its open design allows for effective lubrication, further reducing friction.
This combination enhances efficiency and extends the bearing’s service life.

Engineered for Precision: 71911 CEGA/HCPA9AL Bearing

71911 CEGA/HCPA9AL Bearing meets PA9A tolerance class standards, ensuring exceptional precision in demanding applications.
The ceramic balls and chrome steel rings provide durability and consistent performance.
Its 55 mm bore and 80 mm outer diameter are designed for compact, high-precision machinery.
The bearing operates efficiently within a temperature range of -30°C to 110°C.

Steel vs Ceramic Bearings: Strengths of 71911 CEGA/HCPA9AL Bearing

71911 CEGA/HCPA9AL Bearing combines chrome steel rings with ceramic balls for superior performance.
This hybrid design reduces weight and increases speed capability compared to all-steel bearings.
The ceramic balls resist wear and minimise heat generation during operation.
With a dynamic radial load of 3510 lbf, it handles demanding applications with ease.

Application

Industrial Uses of 71911 CEGA/HCPA9AL Bearing
71911 CEGA/HCPA9AL Bearing is commonly used in high-speed machine tools, where its 15° contact angle provides excellent radial and axial load capacity. The ceramic balls reduce friction, making it ideal for precision grinding applications.

In automotive applications, 71911 CEGA/HCPA9AL Bearing supports components like turbochargers and transmission systems. Its extra light preload ensures smooth operation even under demanding conditions.

For robotics, 71911 CEGA/HCPA9AL Bearing offers reliable performance in articulated arms and joints. The phenolic cage enhances durability while maintaining low weight for efficient movement.

Medical imaging devices benefit from 71911 CEGA/HCPA9AL Bearing’s high-speed capabilities and consistent accuracy. The chrome steel rings ensure long-term reliability in critical diagnostic equipment.

In aerospace systems, 71911 CEGA/HCPA9AL Bearing handles both radial and thrust loads in avionics and control mechanisms. Its temperature range makes it suitable for various flight conditions.

Q&A

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