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Super Precision Angular Contact Ball Bearings S71920 CDGA/HCP4A

Super Precision Angular Contact Ball Bearings S71920 CDGA/HCP4A

The S71920 CDGA/HCP4A is a super precision angular contact ball bearing with a 100mm bore and 140mm outer diameter, designed for high-speed applications. It features a 15° contact angle and is made from durable chrome steel with ceramic balls for smooth operation.

This bearing handles radial loads up to 13612 lbf and spins at speeds up to 16250 RPM. Its sealed design keeps grease in and contaminants out, while the phenolic cage ensures quiet performance.

The P4A tolerance class guarantees excellent precision, making it ideal for machine tools or high-speed spindles. It works in temperatures from -30°C to 110°C and can be matched in sets for back-to-back or face-to-face arrangements.

Weighing 0.68kg, it’s a robust yet lightweight choice for demanding applications. Interchangeable with SKF bearings, it offers reliable performance for precision engineering needs.

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Product Parameters

  • Part Number S71920 CDGA/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 26
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 3
  • 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 13612 lbf
  • Static Radial Load 14738 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16250 rpm
  • Weight 0.68 kg
Super Precision Angular Contact Ball Bearings S71920 CDGA/HCP4A dimension drawing
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Features

Performance Features of S71920 CDGA/HCP4A Bearing

S71920 CDGA/HCP4A Bearing is crafted with chrome steel rings and ceramic balls, ensuring high precision and durability.
Its 15° contact angle allows for efficient handling of combined radial and axial loads.

The phenolic cage maintains ball alignment, reducing friction and enhancing performance.
With a dynamic radial load capacity of 13612 lbf, it excels in demanding applications.

S71920 CDGA/HCP4A Bearing operates smoothly at speeds up to 16,250 rpm.
Its sealed design and grease lubrication minimise maintenance needs while ensuring consistent performance.

The P4A tolerance class guarantees exceptional precision, making it ideal for high-accuracy machinery.
Its universal matching capability allows flexible arrangement options for various operational needs.

Application

How Does S71920 CDGA/HCP4A Bearing Improve Performance?
S71920 CDGA/HCP4A Bearing excels in high-speed machine tools, where its ceramic balls and phenolic cage reduce friction for smoother operation. The sealed design keeps contaminants out, ideal for dusty workshop environments.

In robotics, S71920 CDGA/HCP4A Bearing’s angular contact design provides stability for precise arm movements. Its extra-light preload ensures minimal vibration during delicate assembly tasks.

For medical imaging devices, S71920 CDGA/HCP4A Bearing’s P4A tolerance class delivers the accuracy needed for clear scans. The grease lubrication maintains quiet performance in sensitive hospital settings.

Automotive vs Aerospace: Applications of S71920 CDGA/HCP4A Bearing
In electric vehicle motors, S71920 CDGA/HCP4A Bearing handles radial loads efficiently thanks to its chrome steel rings. The 15° contact angle optimises power transfer while reducing energy loss.

Aircraft instrumentation relies on S71920 CDGA/HCP4A Bearing’s temperature stability during altitude changes. Its matched bearing capability ensures consistent performance across critical flight systems.

Q&A

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