Super Precision Angular Contact Ball Bearings 7008 ACD/P4ADBC

The 7008 ACD/P4ADBC is a super precision angular contact ball bearing with a 40mm bore and 68mm outer diameter, crafted from durable chrome steel. Its 25° contact angle and matched pair design (DB arrangement) offer stable performance under radial and axial loads.

This bearing handles dynamic radial loads up to 5850 lbf and spins smoothly at speeds up to 56,000 RPM. The phenolic cage ensures quiet operation, while the open design allows easy relubrication.

Its P4A tolerance class guarantees high precision, ideal for applications requiring minimal vibration. The moderate preload (Class C) enhances rigidity without excessive friction.

Perfect for machine tools or high-speed spindles where accuracy is crucial. Weighing 0.38kg, it’s robust yet manageable for its size. Works reliably in temperatures from -30°C to 110°C.

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Description

Features

Application

Q&A

Product Parameters

Part Number 7008 ACD/P4ADBC
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 7.938 mm
Ball Qty 18
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 Moderate / Class C
For Load Direction Angular Contact
Ring Material Chrome Steel
Ball Material Chrome Steel
Cage Material Phenolic
Dynamic Radial Load 5850 lbf
Static Radial Load 4680 lbf
Lubrication Lubricated
Temperature Range - 30°C to 110 °C
Max Speed 56000 rpm
Weight 0.38 kg

Super Precision Angular Contact Ball Bearings 7008 ACD/P4ADBC dimension drawing

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Features

Performance Features of 7008 ACD/P4ADBC Bearing

7008 ACD/P4ADBC Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and noise.

The matched arrangement of two bearings provides stability, handling dynamic radial loads up to 5850 lbf.
With a maximum speed of 56,000 rpm, it delivers precision performance in high-speed operations.

7008 ACD/P4ADBC Bearing operates efficiently in temperatures ranging from -30°C to 110°C.
Its P4A tolerance class ensures consistent accuracy, making it ideal for precision machinery.

Application

Ideal for Precision: 7008 ACD/P4ADBC Bearing
The 7008 ACD/P4ADBC Bearing is a great fit for high-precision machine tools, where its moderate preload ensures smooth operation. Its angular contact design handles both radial and axial loads efficiently.

In robotics, 7008 ACD/P4ADBC Bearing works well in articulated arms, thanks to its matched arrangement and phenolic cage. The open seal type allows for easy lubrication, extending its service life.

For medical imaging devices, 7008 ACD/P4ADBC Bearing’s P4A tolerance class delivers the accuracy needed for consistent performance. The chrome steel construction adds durability in demanding environments.

Automotive applications like electric motor shafts benefit from 7008 ACD/P4ADBC Bearing’s high-speed capability. Its 25° contact angle provides stability under dynamic loads.