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Super Precision Angular Contact Ball Bearings 71930 CDGA/HCP4A

Super Precision Angular Contact Ball Bearings 71930 CDGA/HCP4A

The 71930 CDGA/HCP4A is a super precision angular contact ball bearing with a 150mm bore and 210mm outer diameter, crafted from high-quality chrome steel. It features a 15° contact angle and ceramic balls for smooth operation.

This bearing handles radial loads up to 25650 lbf and spins at speeds up to 11000 RPM, making it suitable for high-performance applications. Its phenolic cage ensures durability and reduces friction.

With an extra-light preload (Class A), it offers precise movement and minimal vibration. The open design allows for easy lubrication and maintenance.

Ideal for machine tools or high-speed spindles, this bearing works in temperatures from -30°C to 110°C. It’s interchangeable with SKF bearings and comes in a set of three for versatile mounting options. Weighing 2.08kg, it balances strength and precision.

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Product Parameters

  • Part Number 71930 CDGA/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 150 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 210 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 28 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 19.05 mm
  • Ball Qty 23
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • 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 25650 lbf
  • Static Radial Load 29700 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 11000 rpm
  • Weight 2.08 kg
Super Precision Angular Contact Ball Bearings 71930 CDGA/HCP4A dimension drawing
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Features

Performance Features of 71930 CDGA/HCP4A Bearing

71930 CDGA/HCP4A Bearing is crafted with chrome steel rings and ceramic balls, ensuring high precision and durability.
The phenolic cage enhances stability, making it suitable for high-speed applications up to 11,000 rpm.

With a 15° contact angle, 71930 CDGA/HCP4A Bearing efficiently handles angular contact loads.
Its dynamic radial load capacity of 25,650 lbf ensures reliable performance in demanding conditions.

71930 CDGA/HCP4A Bearing operates smoothly within a temperature range of -30°C to 110°C.
The extra light preload (Class A) minimises friction, contributing to longer service life.

Designed for universal matching, 71930 CDGA/HCP4A Bearing supports back-to-back, face-to-face, or tandem arrangements.
This flexibility makes it adaptable to various precision engineering needs.

Application

Industrial Uses of 71930 CDGA/HCP4A Bearing
71930 CDGA/HCP4A Bearing is commonly used in high-precision machine tools, where its ceramic balls and phenolic cage reduce friction for smoother operation. The extra-light preload ensures minimal vibration, ideal for grinding and milling applications.

In aerospace components, 71930 CDGA/HCP4A Bearing handles angular contact loads efficiently, supporting systems like helicopter rotor shafts. Its P4A tolerance class guarantees the precision needed for critical flight operations.

For robotics, 71930 CDGA/HCP4A Bearing’s open design and lubricated setup allow for high-speed performance in articulated arms. The chrome steel rings provide durability, even in continuous operation scenarios.

Medical imaging devices benefit from 71930 CDGA/HCP4A Bearing’s low heat generation and quiet running. The ceramic balls ensure consistent accuracy in sensitive diagnostic equipment.

In electric vehicle motors, 71930 CDGA/HCP4A Bearing’s high dynamic load capacity supports efficient power transmission. Its metric sizing makes it compatible with various European and Asian automotive designs.

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