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Super Precision Angular Contact Ball Bearings S71911 CE/HCPA9AQBCA

Super Precision Angular Contact Ball Bearings S71911 CE/HCPA9AQBCA

The S71911 is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, crafted from durable chrome steel and ceramic balls. It handles radial loads up to 9225 lbf and spins smoothly at speeds up to 34,000 RPM.

Its sealed design keeps grease in and contaminants out, while the phenolic cage ensures quiet operation. The 15° contact angle provides excellent stability for high-speed applications.

This set includes four matched bearings with extra-light preload for precise alignment. Ideal for machine tools or spindle drives where accuracy and speed are crucial.

Weighing 0.59kg, it operates in temperatures from -30°C to 110°C. Compliant with industry standards, it’s a reliable choice for demanding environments.

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Product Parameters

  • Part Number S71911 CE/HCPA9AQBCA
  • 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 52 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 Sealed
  • Matched Arrangement 4 bearings <<>> QBC
  • Number Of Bearings In Matched Set 4
  • Universal Matching Bearing No
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 9225 lbf
  • Static Radial Load 9562 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.59 kg
Super Precision Angular Contact Ball Bearings S71911 CE/HCPA9AQBCA dimension drawing
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Features

How Does S71911 CE/HCPA9AQBCA Bearing Achieve High-Speed Performance?

S71911 CE/HCPA9AQBCA Bearing features ceramic balls and a phenolic cage, reducing friction for smooth high-speed operation.
Its dynamic radial load capacity of 9225 lbf ensures reliable performance in precision applications.
The sealed design protects against contaminants, maintaining efficiency in demanding conditions.
With a maximum speed of 34,000 rpm, it is ideal for high-speed machinery.

Why Choose S71911 CE/HCPA9AQBCA Bearing for Precision Tasks?

S71911 CE/HCPA9AQBCA Bearing’s 15° contact angle provides excellent angular load handling.
The chrome steel rings and ceramic balls offer durability and reduced wear.
Its extra light preload ensures smooth operation in precision instruments.
The matched arrangement of four bearings enhances stability and performance.

Engineered for Precision: S71911 CE/HCPA9AQBCA Bearing

S71911 CE/HCPA9AQBCA Bearing is designed with a tolerance class of PA9A for high accuracy.
The phenolic cage minimises friction, contributing to quiet and efficient operation.
Its grease lubrication ensures consistent performance over a wide temperature range.
The bearing’s compact size makes it suitable for space-constrained applications.

Steel vs Ceramic Bearings: Strengths of S71911 CE/HCPA9AQBCA Bearing

S71911 CE/HCPA9AQBCA Bearing combines chrome steel rings with ceramic balls for enhanced performance.
This hybrid design reduces weight and increases speed capabilities.
The ceramic balls resist wear and reduce heat generation during operation.
Its sealed construction protects against dust and moisture, extending service life.

Application

Perfect Fit for Automation: S71911 CE/HCPA9AQBCA Bearing
S71911 CE/HCPA9AQBCA Bearing is widely used in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction and heat build-up. The sealed design keeps contaminants out, ensuring long-lasting performance in demanding conditions.

In robotics, S71911 CE/HCPA9AQBCA Bearing provides smooth motion control for precision tasks like assembly and welding. Its extra light preload helps maintain accuracy without sacrificing speed or responsiveness.

For medical imaging devices, S71911 CE/HCPA9AQBCA Bearing’s chrome steel rings and ceramic balls offer reliable operation with minimal vibration. The matched set configuration ensures consistent performance across multiple bearing points.

Where Is S71911 CE/HCPA9AQBCA Bearing Used?
You’ll often find S71911 CE/HCPA9AQBCA Bearing in aerospace applications, where its high-speed capabilities and tight tolerances are crucial. The 15° contact angle helps handle combined radial and axial loads efficiently.

In 3D printers, S71911 CE/HCPA9AQBCA Bearing’s precision and low friction contribute to accurate layer deposition. The grease lubrication ensures quiet operation, making it suitable for office or home environments.

Built for Heavy-Duty Use: S71911 CE/HCPA9AQBCA Bearing
S71911 CE/HCPA9AQBCA Bearing excels in industrial pumps, handling both radial and axial loads with ease. Its phenolic cage resists corrosion, even in wet or chemically aggressive environments.

For electric vehicle motors, S71911 CE/HCPA9AQBCA Bearing’s ceramic balls reduce energy loss, improving overall efficiency. The PA9A tolerance class guarantees the precision needed for high-performance applications.

Q&A

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