Super Precision Angular Contact Ball Bearings 7008 ACE/HCP4AL1DT

The 7008 ACE/HCP4AL1DT is a super precision angular contact ball bearing with a 40mm bore and 68mm outer diameter, crafted from high-quality chrome steel. It features a 25° contact angle and comes in a matched set of two bearings for balanced performance.

This bearing handles radial loads up to 4275 lbf and reaches speeds of 56,000 RPM, thanks to its ceramic balls and phenolic cage. Its open design allows for easy lubrication, ensuring smooth operation.

With a preload option, it offers enhanced stability and reduced vibration during use. The bearing operates efficiently in temperatures from -30°C to 110°C.

Ideal for high-precision applications like machine tool spindles or robotics, where accuracy and speed are crucial. Weighing 0.34kg, it’s a robust yet lightweight solution for demanding environments.

Get A Free Quote

Description

Features

Application

Q&A

Product Parameters

Part Number 7008 ACE/HCP4AL1DT
Brand TFL
Interchangeable SKF
Bore Dia 40 mm
Bore Dia Tolerance -0.004mm to 0
Outer Dia 68 mm
Outer Dia Tolerance -0.004mm to 0
Width 30 mm
Width Tolerance -0.2mm to 0
Ball Dia 7.144 mm
Ball Qty 19
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 4275 lbf
Static Radial Load 3218 lbf
Lubrication Lubricated
Temperature Range - 30°C to 110 °C
Max Speed 56000 rpm
Weight 0.34 kg
Price（$） 351.171

Super Precision Angular Contact Ball Bearings 7008 ACE/HCP4AL1DT dimension drawing

Download DWG Download PDF

Features

Performance Features of 7008 ACE/HCP4AL1DT Bearing

7008 ACE/HCP4AL1DT Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.

Its chrome steel rings and ceramic balls enhance durability, while the phenolic cage ensures smooth operation at high speeds.

With a dynamic radial load capacity of 4275 lbf, it handles demanding conditions reliably.

The bearing’s P4A tolerance class guarantees precision, making it suitable for high-performance machinery.

Application

Industrial Uses of 7008 ACE/HCP4AL1DT Bearing
This bearing is commonly used in high-precision machine tools, where its 25° contact angle ensures accurate radial and axial load handling. The ceramic balls reduce friction, making it suitable for high-speed spindle applications.

In automotive systems, 7008 ACE/HCP4AL1DT Bearing supports performance in gearboxes and electric motors, thanks to its phenolic cage and preload capability. The matched arrangement of two bearings enhances stability under heavy loads.

For medical imaging devices, 7008 ACE/HCP4AL1DT Bearing’s P4A tolerance class guarantees smooth operation in sensitive equipment. Its chrome steel rings and ceramic balls provide long-lasting reliability in sterile environments.

Automation & robotics benefit from 7008 ACE/HCP4AL1DT Bearing’s low friction and high-speed capabilities, ideal for robotic arms and CNC machines. The open design allows for easy lubrication maintenance.

In consumer electronics, 7008 ACE/HCP4AL1DT Bearing ensures quiet operation in devices like high-end printers. Its lightweight phenolic cage contributes to energy efficiency and reduced wear over time.