Super Precision Angular Contact Ball Bearings S71924 ACD/P4A

The S71924 ACD/P4A is a super precision angular contact ball bearing with a 120mm bore and 165mm outer diameter, crafted from high-quality chrome steel. It features a 25° contact angle and comes sealed for protection, with a phenolic cage for durability.

This bearing handles radial loads up to 16380 lbf and operates smoothly at speeds up to 7000 RPM. Its P4 tolerance class ensures high precision, making it suitable for demanding applications.

Preload is available for better performance, and the sealed design helps keep contaminants out. The bearing works reliably in temperatures from -30°C to 110°C.

Ideal for precision machinery like spindles or high-speed equipment, it’s interchangeable with SKF bearings for easy replacement. Weighing 1.21kg, it offers a robust yet manageable solution for industrial use.

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Description

Features

Application

Q&A

Product Parameters

Part Number S71924 ACD/P4A
Brand TFL
Interchangeable SKF
Bore Dia 120 mm
Bore Dia Tolerance -0.008mm to 0
Outer Dia 165 mm
Outer Dia Tolerance -0.01mm to 0
Width 22 mm
Width Tolerance -0.2mm to 0
Ball Dia 14.288 mm
Ball Qty 28
Contact Angle 25°
Tolerance Class P4 (ABEC-7)
System of Measurement Metric
Seal Type Sealed
Matched Arrangement No
Preload Available
For Load Direction Angular Contact
Ring Material Chrome Steel
Ball Material Chrome Steel
Cage Material Phenolic
Dynamic Radial Load 16380 lbf
Static Radial Load 19462 lbf
Lubrication Lubricated
Temperature Range -30° to 110 °C
Max Speed 7000 rpm
Weight 1.21 kg
Price（$） 1816.821

Super Precision Angular Contact Ball Bearings S71924 ACD/P4A dimension drawing

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Features

How Does S71924 ACD/P4A Bearing Ensure Precision in High-Speed Applications?

S71924 ACD/P4A Bearing features a 25° contact angle, optimised for handling both radial and axial loads efficiently.
Its chrome steel construction ensures durability and resistance to wear, even under high dynamic radial loads of 16380 lbf.

The phenolic cage maintains ball alignment, reducing friction and noise during operation.
With a maximum speed of 7,000 rpm, it delivers reliable performance in demanding conditions.

S71924 ACD/P4A Bearing’s P4 tolerance class guarantees high precision, making it suitable for critical applications.
Its sealed design protects against contaminants, extending service life and reducing maintenance needs.

Application

Common Applications of S71924 ACD/P4A Bearing
S71924 ACD/P4A Bearing is widely used in high-precision machine tools, where its 25° contact angle ensures accurate radial and axial load handling. The sealed design helps maintain performance in environments with dust or debris.

In robotics, S71924 ACD/P4A Bearing supports articulated arms and joints, providing smooth motion control. Its phenolic cage reduces friction, making it suitable for repetitive movements.

For aerospace components, S71924 ACD/P4A Bearing’s P4 tolerance class meets the strict requirements for precision and reliability. The chrome steel construction also withstands varying temperatures during flight operations.

In medical imaging devices, S71924 ACD/P4A Bearing’s low vibration characteristics enhance the clarity of scans. The lubricated design ensures quiet operation, which is essential in sensitive environments.

Automotive applications like electric vehicle motors benefit from S71924 ACD/P4A Bearing’s ability to handle high speeds. Its balanced load distribution contributes to longer service life in demanding conditions.