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Super Precision Angular Contact Ball Bearings S71911 ACE/HCP4ADBA

Super Precision Angular Contact Ball Bearings S71911 ACE/HCP4ADBA

The S71911 ACE/HCP4ADBA is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, crafted from chrome steel for durability. It features a 25° contact angle and comes sealed for protection, with two bearings arranged back-to-back for stability.

This bearing handles radial loads up to 5355 lbf and reaches speeds of 34,000 RPM, thanks to its ceramic balls and phenolic cage. The extra-light preload ensures smooth operation, ideal for high-precision applications.

Its sealed design keeps grease in and contaminants out, reducing maintenance needs. The P4A tolerance class guarantees exceptional accuracy, making it suitable for machine tools or spindle drives.

Weighing 0.29kg, it’s lightweight yet robust. Compatible with SKF equivalents, it’s a reliable choice for replacements. Works well in temperatures from -30°C to 110°C.

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Product Parameters

  • Part Number S71911 ACE/HCP4ADBA
  • 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 26 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 mm
  • Ball Qty 21
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement 2 bearings <> DB
  • Number Of Bearings In Matched Set 2
  • 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 5355 lbf
  • Static Radial Load 4500 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.29 kg
Super Precision Angular Contact Ball Bearings S71911 ACE/HCP4ADBA dimension drawing
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Features

Performance Features of S71911 ACE/HCP4ADBA Bearing

S71911 ACE/HCP4ADBA Bearing features a 25° contact angle, optimised for handling combined radial and axial loads.
Its chrome steel rings and ceramic balls ensure smooth operation even at high speeds up to 34,000 rpm.

The sealed design and phenolic cage reduce friction, making it suitable for precision applications.
With a dynamic radial load capacity of 5355 lbf, it delivers reliable performance in demanding conditions.

S71911 ACE/HCP4ADBA Bearing comes in a matched set of two bearings for extra stability.
Its extra light preload (Class A) ensures minimal vibration and noise during operation.

Application

Industrial Uses of S71911 ACE/HCP4ADBA Bearing
S71911 ACE/HCP4ADBA Bearing is commonly used in high-speed machine tools, where its precision and ceramic balls reduce friction for smoother operation. The sealed design keeps contaminants out, extending the bearing’s lifespan in demanding environments.

In automotive applications, S71911 ACE/HCP4ADBA Bearing supports electric motor shafts, ensuring reliable performance under angular loads. Its phenolic cage offers excellent heat resistance, making it suitable for high-temperature conditions.

For medical imaging devices, S71911 ACE/HCP4ADBA Bearing’s P4A tolerance class ensures minimal vibration, crucial for clear and accurate scans. The grease lubrication provides quiet operation, ideal for sensitive medical environments.

Automation systems benefit from S71911 ACE/HCP4ADBA Bearing’s matched arrangement, which enhances stability in robotic arms. The extra light preload allows for precise movement control in automated processes.

In consumer electronics, S71911 ACE/HCP4ADBA Bearing is found in high-performance fans, where its ceramic balls reduce noise and improve efficiency. The compact design fits well in space-constrained devices.

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