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Super Precision Angular Contact Ball Bearings 71930 CDGC/P4A

Super Precision Angular Contact Ball Bearings 71930 CDGC/P4A

The 71930 CDGC/P4A is a super precision angular contact ball bearing with a 150mm bore and 210mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 25650 lbf and operates smoothly at speeds up to 11000 RPM.

With a 15° contact angle and moderate preload, it offers excellent stability for high-precision applications. The open design and phenolic cage ensure reliable performance under demanding conditions.

This bearing is suitable for temperatures ranging from -30°C to 110°C and comes pre-lubricated for easy use. It can be matched in sets of four for universal configurations like back-to-back or face-to-face arrangements.

Ideal for machine tools or high-speed spindles where precision and durability are key. Weighing 2.5kg, it balances strength and precision in a compact size.

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Product Parameters

  • Part Number 71930 CDGC/P4A
  • 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 4
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • 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 2.5 kg
Super Precision Angular Contact Ball Bearings 71930 CDGC/P4A dimension drawing
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Features

How Is 71930 CDGC/P4A Bearing Engineered for Reliability?

71930 CDGC/P4A Bearing features a 15° contact angle, optimised for handling combined radial and axial loads.
The chrome steel construction ensures durability and resistance to wear under high dynamic radial loads of 25,650 lbf.

With a phenolic cage, 71930 CDGC/P4A Bearing maintains ball alignment, reducing friction and noise.
Its P4A tolerance class guarantees precision performance in demanding applications.

71930 CDGC/P4A Bearing supports speeds up to 11,000 rpm while maintaining stability.
The open design allows for easy lubrication, ensuring smooth operation over a wide temperature range.

Application

Industrial Uses of 71930 CDGC/P4A Bearing
71930 CDGC/P4A Bearing is commonly used in high-precision machine tools, where its moderate preload and angular contact design ensure accurate performance. The open seal type allows for efficient lubrication, extending its service life in demanding conditions.

In automotive applications, 71930 CDGC/P4A Bearing supports components like wheel hubs and transmissions, thanks to its chrome steel construction. Its P4A tolerance class makes it suitable for systems requiring tight precision and reliability.

For automation systems, 71930 CDGC/P4A Bearing is ideal for robotic arms and CNC machines, where smooth operation is essential. The phenolic cage reduces friction, enhancing efficiency in high-speed scenarios.

Medical imaging devices benefit from 71930 CDGC/P4A Bearing’s consistent performance and low maintenance needs. Its temperature range ensures reliability in various clinical environments.

In consumer electronics, 71930 CDGC/P4A Bearing can be found in high-end printers and scanners, where precision and durability are key. The metric sizing ensures compatibility with a wide range of equipment.

Q&A

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