Angular Contact Ball Bearing B71904-C-2RSD-T-P4S-UL FAG 20x37x9

Applications - High-Precision Industrial Systems

The B71904-C-2RSD-T-P4S-UL FAG 20x37x9 is a high-precision angular contact ball bearing designed for demanding industrial applications requiring superior rotational accuracy and stability. Its angular contact design allows it to support combined radial and axial loads, making it ideal for machine tool spindles, CNC machining centers, precision drives, and high-speed equipment.

The 2RSD sealing configuration provides effective protection against contamination while retaining lubricant inside the bearing. This makes it suitable for environments where cleanliness and long service intervals are essential.

With UL universal matching capability, the bearing can be mounted in paired arrangements to form a precise bearing unit in tandem, O, or X configurations without additional adjustment.

Advantages - High Durability and Dimensional Accuracy

This angular contact ball bearing is manufactured to P4S precision class, ensuring minimal runout, high rotational accuracy, and stable performance at high speeds. The optimized internal geometry provides even load distribution and reduced friction, contributing to extended service life in industrial applications.

Compared to standard deep groove ball bearings, angular contact bearings offer superior axial load capacity and stiffness, especially in high-speed spindle assemblies. The sealed design increases operational reliability and reduces maintenance requirements.

Its compact dimensions of 20x37x9 allow installation in limited spaces while maintaining excellent dynamic performance.

Technical Data

• Designation: B71904-C-2RSD-T-P4S-UL

• Brand: FAG

• Type: Angular contact ball bearing

• Dimensions: 20x37x9

• Sealing: 2RSD - double sealed

• Precision class: P4S

• Matching: UL universal pairing

FAQ - Frequently Asked Questions

What type of loads can this bearing support?
It supports combined radial and axial loads due to its angular contact design.

What does P4S mean?
P4S indicates a high precision class suitable for spindle and high-speed applications requiring minimal tolerance deviations.

What is the advantage of the 2RSD sealing?
Double sealing protects against contaminants and retains lubrication, improving service life.

Can this bearing be used in matched sets?
Yes, the UL designation allows universal pairing without additional preload adjustment.