Super Precision Angular Contact Ball Bearings S71904 ACDGA/P4A

The S71904 ACDGA/P4A is a super precision angular contact ball bearing with a 20mm bore and 37mm outer diameter, designed for high-speed applications. Its 25° contact angle and sealed design ensure smooth operation with minimal friction.

Made from chrome steel with a phenolic cage, it handles dynamic radial loads up to 1287 lbf and spins at speeds up to 100,000 RPM. The extra light preload (Class A) enhances precision and reduces vibration.

This bearing is ideal for machine tools or spindle applications where accuracy is crucial. It comes pre-lubricated with grease and operates in temperatures from -30°C to 110°C.

Weighing just 0.037kg, it’s lightweight yet durable. The P4A tolerance class ensures top-tier performance, and it can be matched in sets for back-to-back, face-to-face, or tandem arrangements.

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Description

Features

Application

Q&A

Product Parameters

Part Number S71904 ACDGA/P4A
Brand TFL
Interchangeable SKF
Bore Dia 20 mm
Bore Dia Tolerance -0.004mm to 0
Outer Dia 37 mm
Outer Dia Tolerance -0.004mm to 0
Width 9 mm
Width Tolerance -0.2mm to 0
Ball Dia 4.762 mm
Ball Qty 15
Contact Angle 25°
Tolerance Class P4A
System of Measurement Metric
Seal Type Sealed
Matched Arrangement No
Number Of Bearings In Matched Set 4
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 Chrome Steel
Cage Material Phenolic
Dynamic Radial Load 1287 lbf
Static Radial Load 686 lbf
Lubrication Grease
Temperature Range - 30°C to 110 °C
Max Speed 100000 rpm
Weight 0.037 kg

Super Precision Angular Contact Ball Bearings S71904 ACDGA/P4A dimension drawing

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Features

Performance Features of S71904 ACDGA/P4A Bearing

S71904 ACDGA/P4A Bearing is designed with a 25° contact angle, ideal for handling combined radial and axial loads.
Its chrome steel rings and balls ensure durability and smooth operation in high-speed applications.

The phenolic cage keeps the balls aligned, reducing friction and wear for extended service life.
With a maximum speed of 100,000 rpm, it excels in precision tasks requiring high rotational accuracy.

S71904 ACDGA/P4A Bearing’s sealed design protects against contaminants, maintaining performance in harsh environments.
Its extra light preload ensures minimal friction, enhancing efficiency and reducing energy consumption.

The P4A tolerance class guarantees tight dimensional control, making it suitable for critical applications.
Weighing just 0.037 kg, it offers a lightweight solution without compromising strength or reliability.

Application

Key Fields for S71904 ACDGA/P4A Bearing
S71904 ACDGA/P4A Bearing is widely used in high-speed machine tools, where its precision and angular contact design ensure accurate performance. The sealed construction helps maintain lubrication, reducing maintenance needs in demanding environments.

In robotics, S71904 ACDGA/P4A Bearing supports articulated arms, providing smooth motion and reliability. Its phenolic cage offers lightweight durability, ideal for repetitive movements.

For medical imaging devices, S71904 ACDGA/P4A Bearing’s chrome steel components deliver consistent operation under precise conditions. The extra light preload ensures minimal friction, crucial for sensitive applications.

Automotive applications like electric vehicle motors benefit from S71904 ACDGA/P4A Bearing’s high-speed capabilities. The metric sizing and P4A tolerance class make it a dependable choice for performance-driven systems.