Super Precision Angular Contact Ball Bearings 71805 ACD/P4

The 71805 ACD/P4 is a super precision angular contact ball bearing with a 25mm bore and 37mm outer diameter, designed for high-speed applications. Its compact 7mm width makes it suitable for tight spaces, while the 25° contact angle helps manage combined loads effectively.

Made from durable chrome steel with a phenolic cage, it handles radial loads up to 878 lbf and spins smoothly at 53,000 RPM. The open design allows easy lubrication, ensuring long-lasting performance even in demanding conditions.

This bearing meets P4 (ABEC-7) tolerance standards for precise operation. Ideal for machine tools or high-speed spindles where accuracy and speed are crucial. Its lightweight design (0.021kg) doesn’t compromise on strength or reliability.

Operating between -30°C to 110°C, it’s versatile for various industrial environments. Compatible with SKF bearings, offering a reliable replacement option for maintenance or upgrades.

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Description

Features

Application

Q&A

Product Parameters

Part Number 71805 ACD/P4
Brand TFL
Interchangeable SKF
Bore Dia 25 mm
Bore Dia Tolerance -0.005mm to 0
Outer Dia 37 mm
Outer Dia Tolerance -0.006mm to 0
Width 7 mm
Width Tolerance -0.2mm to 0
Ball Dia 3.175 mm
Ball Qty 20
Contact Angle 25°
Tolerance Class P4 (ABEC-7)
System of Measurement Metric
Seal Type Open
Matched Arrangement No
Preload Available
For Load Direction Angular Contact
Ring Material Chrome Steel
Ball Material Chrome Steel
Cage Material Phenolic
Dynamic Radial Load 878 lbf
Static Radial Load 686 lbf
Lubrication Lubricated
Temperature Range -30° to 110 °C
Max Speed 53000 rpm
Weight 0.021 kg
Price（$） 234.72

Super Precision Angular Contact Ball Bearings 71805 ACD/P4 dimension drawing

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Features

Why Choose 71805 ACD/P4 Bearing for Precision Tasks?

71805 ACD/P4 Bearing features a 25° contact angle, ideal for handling combined radial and axial loads with precision.
Its P4 tolerance class ensures high accuracy, making it suitable for demanding applications.

The chrome steel rings and balls provide durability, while the phenolic cage reduces friction and noise.
With a maximum speed of 53,000 rpm, it delivers reliable performance in high-speed operations.

Lubrication is pre-applied, ensuring smooth operation right from installation.
Its compact size (25 mm×37 mm×7 mm) makes it perfect for space-constrained setups.

Application

Common Applications of 71805 ACD/P4 Bearing
71805 ACD/P4 Bearing is widely used in high-speed machine tools, where its precision and angular contact design ensure accurate spindle rotation. The open seal type allows for efficient lubrication, extending service life in demanding conditions.

In robotics, 71805 ACD/P4 Bearing supports articulated arms, providing smooth movement with minimal friction. Its phenolic cage material reduces weight while maintaining stability during rapid directional changes.

For optical equipment like microscopes, 71805 ACD/P4 Bearing’s P4 tolerance class ensures minimal vibration, crucial for clear imaging. The chrome steel construction also resists wear in continuous-use scenarios.

Automotive applications include electric power steering systems, where 71805 ACD/P4 Bearing handles combined radial and thrust loads reliably. Its compact size makes it ideal for space-constrained designs.

In dental handpieces, 71805 ACD/P4 Bearing’s high-speed capability and precision contribute to quiet, vibration-free operation. The lubricated design further enhances performance in medical environments.