Super Precision Angular Contact Ball Bearings 71930 CDGB/P4A

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

Its 15° contact angle and open design ensure efficient load distribution and easy maintenance. The phenolic cage adds durability while keeping the weight manageable at 2.5kg.

This bearing comes in a matched set of four, suitable for universal matching in back-to-back, face-to-face, or tandem arrangements. Ideal for high-precision applications like machine tools or spindle drives.

With a temperature range of -30°C to 110°C, it performs reliably in various environments. Compliant with P4A tolerance class for exceptional accuracy.

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Description

Features

Application

Q&A

Product Parameters

Part Number 71930 CDGB/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 Available
Number Of Bearings In Matched Set 4
Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
Preload Light / Class B
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 CDGB/P4A dimension drawing

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Features

Performance Features of 71930 CDGB/P4A Bearing

71930 CDGB/P4A Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
The chrome steel rings and balls enhance durability, supporting dynamic radial loads up to 25,650 lbf.

Its phenolic cage ensures smooth operation, reducing friction and noise during high-speed use.
With a maximum speed of 11,000 rpm, it balances precision and performance.

The bearing’s P4A tolerance class guarantees high accuracy, making it suitable for precision tasks.
It operates efficiently within a temperature range of -30°C to 110°C.

71930 CDGB/P4A Bearing is available in matched sets, offering flexibility for various mounting arrangements.
This design simplifies installation and improves overall system reliability.

Application

Key Fields for 71930 CDGB/P4A Bearing
71930 CDGB/P4A Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The light preload and P4A tolerance class make it ideal for applications demanding minimal deflection.

In aerospace systems, 71930 CDGB/P4A Bearing supports critical components like turbine shafts, thanks to its ability to handle combined radial and axial loads. The phenolic cage provides stability at high speeds, up to 11,000 rpm.

For automation equipment, 71930 CDGB/P4A Bearing’s matched arrangement allows for seamless integration in robotic arms. Its chrome steel construction ensures durability in continuous operation, while the open design simplifies lubrication.

Medical imaging devices benefit from 71930 CDGB/P4A Bearing’s precision, particularly in MRI machines where smooth rotation is essential. The temperature range of -30°C to 110°C ensures reliability in various clinical environments.