Super Precision Angular Contact Ball Bearings 71912 CD/P4ADGB

The 71912 CD/P4ADGB is a super precision angular contact ball bearing with a 60mm bore and 85mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 7178 lbf and operates smoothly at high speeds up to 31,000 RPM.

Its 15° contact angle and universal matching design allow flexible arrangements like back-to-back or face-to-face. The phenolic cage ensures quiet performance, while the open seal simplifies maintenance.

This bearing is ideal for precision applications like machine tool spindles or high-speed robotics. With a light preload (Class B), it offers stable performance in temperatures from -30°C to 110°C.

Weighing 0.38kg, it comes as a matched set of two bearings for balanced load distribution. Compliant with P4A tolerance standards for exceptional accuracy.

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Description

Features

Application

Q&A

Product Parameters

Part Number 71912 CD/P4ADGB
Brand TFL
Interchangeable SKF
Bore Dia 60 mm
Bore Dia Tolerance -0.004mm to 0
Outer Dia 85 mm
Outer Dia Tolerance -0.004mm to 0
Width 26 mm
Width Tolerance -0.2mm to 0
Ball Dia 7.938 mm
Ball Qty 24
Contact Angle 15°
Tolerance Class P4A
System of Measurement Metric
Seal Type Open
Matched Arrangement Universal matching
Number Of Bearings In Matched Set 2
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 7178 lbf
Static Radial Load 6975 lbf
Lubrication Lubricated
Temperature Range - 30°C to 110 °C
Max Speed 31000 rpm
Weight 0.38 kg
Price（$） 244.881

Super Precision Angular Contact Ball Bearings 71912 CD/P4ADGB dimension drawing

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Features

Performance Features of 71912 CD/P4ADGB Bearing

71912 CD/P4ADGB Bearing is crafted with chrome steel rings and balls, offering high precision and durability.

Its 15° contact angle ensures efficient handling of combined radial and axial loads.

The phenolic cage maintains ball alignment, reducing friction and enhancing performance.

With a maximum speed of 31,000 rpm, it is ideal for high-speed applications.

How Does 71912 CD/P4ADGB Bearing Reduce Friction?

71912 CD/P4ADGB Bearing’s universal matching design allows for versatile installation in back-to-back or face-to-face arrangements.

The precision-ground raceways and high-quality chrome steel components minimise friction during operation.

Light preload ensures smooth performance, reducing wear and extending bearing life.

Its open design facilitates easy lubrication, maintaining optimal performance over time.

Engineered for Precision: 71912 CD/P4ADGB Bearing

71912 CD/P4ADGB Bearing meets P4A tolerance standards, ensuring exceptional accuracy for demanding applications.

The dynamic radial load capacity of 7178 lbf makes it suitable for heavy-duty operations.

Its phenolic cage resists wear and reduces noise, enhancing operational efficiency.

The bearing operates reliably within a temperature range of -30°C to 110°C.

Chrome Steel vs Stainless Steel: Reliability of 71912 CD/P4ADGB Bearing

71912 CD/P4ADGB Bearing uses chrome steel for rings and balls, providing superior strength and corrosion resistance.

The phenolic cage offers a lightweight yet durable alternative to metal cages, reducing overall weight.

With 24 precision balls, it ensures even load distribution and smooth rotation.

This design choice enhances the bearing’s reliability in high-speed and high-precision environments.

Application

Key Fields for 71912 CD/P4ADGB Bearing
71912 CD/P4ADGB 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 suitable for applications demanding minimal runout.

In aerospace components, 71912 CD/P4ADGB Bearing handles both radial and axial loads efficiently, such as in helicopter gearboxes. Its phenolic cage reduces weight while maintaining stability at high speeds.

For robotics, 71912 CD/P4ADGB Bearing’s universal matching feature allows flexible mounting in articulated arms. The chrome steel construction provides durability in repetitive motion scenarios.

Medical imaging devices benefit from 71912 CD/P4ADGB Bearing’s low vibration and smooth operation. The lubricated design ensures quiet performance in sensitive environments.