Super Precision Angular Contact Ball Bearings 71801 ACD/P4QBCB

The 71801 ACD/P4QBCB is a super precision angular contact ball bearing with a 12mm bore and 21mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 1170 lbf and spins smoothly at speeds up to 100,000 RPM.

With a 25° contact angle and open design, it offers precise performance in matched sets of four. The phenolic cage ensures quiet operation and long service life.

Ideal for high-speed applications like machine tool spindles or precision instruments. Its light preload (Class B) ensures smooth rotation under angular loads.

Weighing just 0.024kg, this P4-class bearing operates in temperatures from -30°C to 110°C. Interchangeable with SKF bearings for easy replacement.

Get A Free Quote

Description

Features

Application

Q&A

Product Parameters

Part Number 71801 ACD/P4QBCB
Brand TFL
Interchangeable SKF
Bore Dia 12 mm
Bore Dia Tolerance -0.004mm to 0
Outer Dia 21 mm
Outer Dia Tolerance -0.004mm to 0
Width 20 mm
Width Tolerance -0.2mm to 0
Ball Dia 2.381 mm
Ball Qty 14
Contact Angle 25°
Tolerance Class P4
System of Measurement Metric
Seal Type Open
Matched Arrangement 4 bearings <<>> QBC
Number Of Bearings In Matched Set 4
Universal Matching Bearing No
Preload Light / Class B
For Load Direction Angular Contact
Ring Material Chrome Steel
Ball Material Chrome Steel
Cage Material Phenolic
Dynamic Radial Load 1170 lbf
Static Radial Load 1012 lbf
Lubrication Lubricated
Temperature Range - 30°C to 110 °C
Max Speed 100000 rpm
Weight 0.024 kg

Super Precision Angular Contact Ball Bearings 71801 ACD/P4QBCB dimension drawing

Download DWG Download PDF

Features

Engineered for Precision: 71801 ACD/P4QBCB Bearing

71801 ACD/P4QBCB Bearing features a 25° contact angle, optimised for high-precision angular contact applications.
Its chrome steel rings and balls ensure durability and smooth operation under dynamic radial loads up to 1170 lbf.

The phenolic cage maintains ball alignment, reducing friction and enhancing performance at speeds up to 100,000 rpm.
With a P4 tolerance class, 71801 ACD/P4QBCB Bearing delivers consistent accuracy in demanding conditions.

Designed for light preload, it minimises vibration and noise in precision machinery.
The matched set of four bearings ensures balanced load distribution for reliable operation.

Application

Where Is 71801 ACD/P4QBCB Bearing Used?
71801 ACD/P4QBCB Bearing is commonly used in high-speed machine tools, where its precision and light preload ensure smooth operation. The angular contact design handles both radial and axial loads effectively.

In robotics, 71801 ACD/P4QBCB Bearing supports articulated arms, providing stability during repetitive movements. Its phenolic cage reduces friction, making it suitable for continuous operation.

For medical imaging devices, 71801 ACD/P4QBCB Bearing’s P4 tolerance class guarantees accuracy in sensitive applications. The chrome steel construction also offers durability in sterile environments.

In aerospace components, 71801 ACD/P4QBCB Bearing’s matched arrangement ensures consistent performance under varying loads. Its high-speed capability makes it ideal for critical flight systems.