Super Precision Angular Contact Ball Bearings 71911 ACE/HCP4ADBA

The 71911 ACE/HCP4ADBA is a super precision angular contact ball bearing measuring 55mm by 80mm by 26mm, crafted from chrome steel with ceramic balls for enhanced durability. It supports radial loads up to 5355 lbf and operates smoothly at speeds up to 46,000 RPM.

With a 25° contact angle and extra light preload, it offers precise performance in matched pairs (DB arrangement). The open design and phenolic cage ensure low friction and easy maintenance.

Ideal for high-speed applications like machine tool spindles or precision instruments, this bearing handles temperatures from -30°C to 110°C. Weighing 0.29kg, it’s lightweight yet robust for its size, meeting P4A tolerance standards for accuracy.

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Description

Features

Application

Q&A

Product Parameters

Part Number 71911 ACE/HCP4ADBA
Brand TFL
Interchangeable SKF
Bore Dia 55 mm
Bore Dia Tolerance -0.004mm to 0
Outer Dia 80 mm
Outer Dia Tolerance -0.004mm to 0
Width 26 mm
Width Tolerance -0.2mm to 0
Ball Dia 7.938 mm
Ball Qty 21
Contact Angle 25°
Tolerance Class P4A
System of Measurement Metric
Seal Type Open
Matched Arrangement 2 bearings <> DB
Number Of Bearings In Matched Set 2
Universal Matching Bearing No
Preload Extra light / Class A
For Load Direction Angular Contact
Ring Material Chrome Steel
Ball Material Ceramic
Cage Material Phenolic
Dynamic Radial Load 5355 lbf
Static Radial Load 4500 lbf
Lubrication Lubricated
Temperature Range - 30°C to 110 °C
Max Speed 46000 rpm
Weight 0.29 kg

Super Precision Angular Contact Ball Bearings 71911 ACE/HCP4ADBA dimension drawing

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Features

Performance Features of 71911 ACE/HCP4ADBA Bearing

71911 ACE/HCP4ADBA Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and ceramic balls enhance durability and reduce friction.

The phenolic cage ensures smooth operation at high speeds, up to 46,000 rpm.
With a dynamic radial load capacity of 5355 lbf, it handles demanding conditions reliably.

Precision-matched in pairs (DB arrangement), 71911 ACE/HCP4ADBA Bearing offers consistent performance.
Its extra light preload (Class A) minimises vibration and noise for precision tasks.

Operating between -30°C to 110°C, this bearing suits various environments.
The open design allows easy lubrication, extending service life.

Application

Industrial Uses of 71911 ACE/HCP4ADBA Bearing
71911 ACE/HCP4ADBA Bearing is commonly used in high-speed machine tools, where its precision and ceramic balls reduce friction. The matched arrangement ensures stability in demanding applications like CNC spindles.

How Does 71911 ACE/HCP4ADBA Bearing Improve Performance?
In robotics, 71911 ACE/HCP4ADBA Bearing enhances accuracy in articulated arms due to its P4A tolerance class. The phenolic cage also minimises heat buildup during continuous operation.

Built for Heavy-Duty Use: 71911 ACE/HCP4ADBA Bearing
This bearing handles radial and axial loads efficiently in industrial gearboxes. Its extra light preload makes it suitable for applications requiring smooth rotation.

Automotive vs Aerospace: Applications of 71911 ACE/HCP4ADBA Bearing
In automotive systems, 71911 ACE/HCP4ADBA Bearing supports high-performance transmissions. For aerospace, its lightweight design and temperature resistance are ideal for auxiliary systems.

Perfect Fit for Automation: 71911 ACE/HCP4ADBA Bearing
71911 ACE/HCP4ADBA Bearing is a reliable choice for automated production lines, where its speed capability keeps up with rapid cycles. The open design allows for easy relubrication when needed.