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Super Precision Angular Contact Ball Bearings S71920 CEGA/HCP4A

Super Precision Angular Contact Ball Bearings S71920 CEGA/HCP4A

The S71920 CEGA/HCP4A is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, crafted from high-quality chrome steel. Its compact 20mm width makes it suitable for space-sensitive applications while maintaining robust performance.

With a 15° contact angle and ceramic balls, it handles radial loads up to 8775 lbf and spins smoothly at speeds up to 16,250 RPM. The phenolic cage ensures durability, and the sealed design keeps grease in place for low-maintenance operation.

This bearing is ideal for high-precision machinery like CNC spindles or medical equipment, where accuracy and speed are crucial. It operates reliably in temperatures from -30°C to 110°C and comes preloaded for extra light performance.

Weighing 0.66kg, it’s part of a universal matching set, allowing flexible arrangements like back-to-back or face-to-face mounting. Compliant with P4A tolerance standards, it’s interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number S71920 CEGA/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 100 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 140 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 20 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 12.7 mm
  • Ball Qty 24
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Sealed
  • 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 8775 lbf
  • Static Radial Load 7088 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16250 rpm
  • Weight 0.66 kg
Super Precision Angular Contact Ball Bearings S71920 CEGA/HCP4A dimension drawing
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Features

Performance Features of S71920 CEGA/HCP4A Bearing

S71920 CEGA/HCP4A Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and ceramic balls reduce friction, enhancing precision in high-speed operations.

The phenolic cage ensures stability, even at maximum speeds of 16,250 rpm.
With a dynamic radial load capacity of 8775 lbf, it handles demanding conditions reliably.

S71920 CEGA/HCP4A Bearing operates smoothly within a temperature range of -30°C to 110°C.
Its sealed design and grease lubrication minimise maintenance requirements.

The P4A tolerance class guarantees high precision, making it ideal for critical applications.
Its universal matching capability allows flexible arrangement options like back-to-back or face-to-face.

Application

Industrial Uses of S71920 CEGA/HCP4A Bearing
S71920 CEGA/HCP4A Bearing is commonly used in high-precision machine tools, where its ceramic balls and phenolic cage ensure smooth operation under demanding conditions. The sealed design helps maintain lubrication, reducing maintenance needs in industrial settings.

In automotive applications, S71920 CEGA/HCP4A Bearing supports high-speed components like electric motor shafts, thanks to its extra-light preload and angular contact design. Its metric sizing makes it a versatile choice for various vehicle models.

For medical imaging devices, S71920 CEGA/HCP4A Bearing’s chrome steel rings and ceramic balls provide reliable performance in sensitive environments. The P4A tolerance class ensures the precision required for diagnostic equipment.

Automation & robotics benefit from S71920 CEGA/HCP4A Bearing’s ability to handle combined loads in robotic arms. Its grease lubrication and sealed construction make it suitable for continuous operation in automated systems.

In consumer electronics, S71920 CEGA/HCP4A Bearing is often found in high-end printers, where its low friction and high-speed capability improve print quality. The temperature range also ensures stability during prolonged use.

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