Super Precision Angular Contact Ball Bearings 71918 ACE/HCP4ALDT

The 71918 ACE/HCP4ALDT is a super precision angular contact ball bearing with a 90mm bore and 125mm outer diameter, crafted from durable chrome steel and ceramic balls. It handles radial loads up to 10530 lbf and operates smoothly at speeds up to 15000 RPM.

Its 25° contact angle and matched arrangement (2 bearings << DT) ensure stable performance under angular loads. The phenolic cage offers lightweight strength, while the open design allows for easy lubrication. This bearing is ideal for high-precision applications like machine tool spindles or high-speed robotics. With a temperature range of -30°C to 110°C, it suits various industrial environments. Weighing 0.92kg, it meets P4A tolerance standards for exceptional accuracy. The ceramic balls reduce friction, enhancing longevity in demanding conditions.

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Description

Features

Application

Q&A

Product Parameters

Part Number 71918 ACE/HCP4ALDT
Brand TFL
Interchangeable SKF
Bore Dia 90 mm
Bore Dia Tolerance -0.004mm to 0
Outer Dia 125 mm
Outer Dia Tolerance -0.004mm to 0
Width 36 mm
Width Tolerance -0.2mm to 0
Ball Dia 11.112 mm
Ball Qty 24
Contact Angle 25°
Tolerance Class P4A
System of Measurement Metric
Seal Type Open
Matched Arrangement 2 bearings << DT
Number Of Bearings In Matched Set 2
Universal Matching Bearing No
Preload Available
For Load Direction Angular Contact
Ring Material Chrome Steel
Ball Material Ceramic
Cage Material Phenolic
Dynamic Radial Load 10530 lbf
Static Radial Load 10238 lbf
Lubrication Lubricated
Temperature Range - 30°C to 110 °C
Max Speed 15000 rpm
Weight 0.92 kg

Super Precision Angular Contact Ball Bearings 71918 ACE/HCP4ALDT dimension drawing

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Features

Performance Features of 71918 ACE/HCP4ALDT Bearing

71918 ACE/HCP4ALDT Bearing features a 25° contact angle, optimised for precision angular contact applications.
Its chrome steel rings and ceramic balls enhance durability while reducing friction.

The phenolic cage ensures smooth operation, even at high speeds up to 15,000 rpm.
With a dynamic radial load capacity of 10,530 lbf, it handles demanding conditions reliably.

71918 ACE/HCP4ALDT Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its matched arrangement of two bearings provides stability and consistent performance.

The open design allows for easy lubrication, maintaining optimal performance over time.
Precision-engineered to P4A tolerance class, it ensures accuracy in high-speed applications.

Application

Key Fields for 71918 ACE/HCP4ALDT Bearing
71918 ACE/HCP4ALDT Bearing is widely used in high-speed machine tools, where its precision and angular contact design ensure accurate performance. The ceramic balls reduce friction, making it ideal for applications requiring smooth rotation.

In automotive systems, 71918 ACE/HCP4ALDT Bearing supports components like electric motors and gearboxes, handling both radial and axial loads efficiently. Its matched arrangement enhances stability in demanding conditions.

For robotics, 71918 ACE/HCP4ALDT Bearing’s phenolic cage and chrome steel rings provide durability in mechanical arms and automated systems. The P4A tolerance class guarantees consistent performance in precise movements.

Medical imaging devices benefit from 71918 ACE/HCP4ALDT Bearing’s low friction and high-speed capabilities. The lubricated design ensures quiet operation, crucial for sensitive equipment.

In aerospace applications, 71918 ACE/HCP4ALDT Bearing’s ability to handle extreme loads and speeds makes it a reliable choice. The temperature range suits both cold and moderate environments.