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Super Precision Angular Contact Ball Bearings S71911 CB/HCP4AQGA

Super Precision Angular Contact Ball Bearings S71911 CB/HCP4AQGA

The S71911 CB/HCP4AQGA is a super precision angular contact ball bearing with a 55mm bore and 80mm outer diameter, crafted from durable chrome steel. Its 15° contact angle and ceramic balls ensure smooth operation under angular loads.

This sealed bearing comes pre-greased and handles radial loads up to 5962 lbf, with a maximum speed of 34,000 RPM. The phenolic cage offers excellent heat resistance and reduces friction.

Designed for universal matching, it can be arranged back-to-back, face-to-face, or tandem. The P4A tolerance class guarantees high precision for demanding applications.

Ideal for high-speed machinery like spindles or robotics, where accuracy and reliability are crucial. It operates in temperatures from -30°C to 110°C and weighs just 0.71kg.

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Product Parameters

  • Part Number S71911 CB/HCP4AQGA
  • 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 5.556 mm
  • Ball Qty 28
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement Universal matching
  • Number Of Bearings In Matched Set 4
  • 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 5962 lbf
  • Static Radial Load 7312 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 34000 rpm
  • Weight 0.71 kg
Super Precision Angular Contact Ball Bearings S71911 CB/HCP4AQGA dimension drawing
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Features

Performance Features of S71911 CB/HCP4AQGA Bearing

S71911 CB/HCP4AQGA Bearing features a 15° contact angle, optimised for precision angular contact applications.
Its universal matching design allows flexible arrangement in back-to-back, face-to-face, or tandem configurations.

The ceramic balls and chrome steel rings ensure smooth operation at high speeds up to 34,000 rpm.
Phenolic cage material reduces weight while maintaining structural integrity under dynamic radial loads of 5962 lbf.

With extra light preload (Class A) and P4A tolerance, S71911 CB/HCP4AQGA Bearing delivers consistent accuracy.
The sealed design and grease lubrication minimise maintenance needs in temperatures from -30°C to 110°C.

Application

Super Precision Angular Contact Ball Bearings S71911 CB/HCP4AQGA excel in high-speed machine tool spindles, where their 15° contact angle ensures smooth rotation under radial and axial loads. The ceramic balls reduce friction, making them ideal for precision grinding applications.

In aerospace components, S71911 CB/HCP4AQGA’s universal matching design allows flexible arrangements like back-to-back or tandem setups, crucial for compact spaces. Its P4A tolerance class guarantees consistent performance in demanding flight conditions.

For medical imaging devices, S71911 CB/HCP4AQGA’s phenolic cage and sealed construction prevent contamination, while the grease lubrication ensures quiet operation. The extra-light preload further enhances accuracy in sensitive diagnostic equipment.

Automotive testing rigs benefit from S71911 CB/HCP4AQGA’s ability to handle dynamic radial loads up to 5962 lbf. The metric dimensions make it a reliable choice for European performance vehicle prototypes.

In semiconductor manufacturing, S71911 CB/HCP4AQGA’s temperature stability (-30°C to 110°C) maintains precision during prolonged wafer processing. The chrome steel rings provide durability against constant start-stop cycles.

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