S7008 CD/P4ADGA
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7008 CD/P4ADGA
Basic Information
System of measurement
Metric
Weight
0.39 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
40 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
68 mm
Outside diameter tolerance
-0.004mm to 0
Width
30 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
18
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
6210 lbf
Radial static load rating
4950 lbf
Limiting speed
41 X 1000 rpm
Lubrication
Grease
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 132.82
/ each
In Stock
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S7008 CD/P4ADGA Bearing Product Overview & Core Advantages
The S7008 CD/P4ADGA is a precision double-row angular contact ball bearing designed for applications requiring exceptional accuracy and reliability. Engineered with an extra light preload (Class A) and manufactured to P4A tolerance class, this bearing delivers superior rotational precision and smooth operation. Its double-row design provides high rigidity and the ability to support combined loads (radial and bidirectional axial loads) simultaneously, making it an ideal, compact solution for high-performance machinery where space and precision are critical.
S7008 CD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
The model number S7008 CD/P4ADGA is decoded as follows:
- S7008: Basic series designation for a 40mm bore, 68mm OD double-row angular contact ball bearing.
- C: Represents a 15° contact angle.
- D: Indicates the bearing is part of a Universal Matchable (SU) pair.
- P4A: Denotes the tolerance class, signifying very high precision levels for both dimensional and running accuracy.
- DGA: Specifies the use of a phenolic resin cage, which contributes to lower friction, reduced weight, and superior performance in high-speed applications.
S7008 CD/P4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double-row angular contact structure provides significantly higher rigidity than single-row designs, enabling stable support for combined radial and axial loads from both directions. This is essential for applications with complex load paths.
- Precision & High-Speed Performance: Manufactured to P4A super-precision standards, the bearing ensures minimal runout and vibration. The lightweight phenolic cage (DGA) reduces centrifugal forces, allowing for higher limiting speeds (up to 41,000 rpm) with smooth operation.
- Universal Matchability (SU): The Universal Matchable (SU) designation means two identical bearings can be mounted in a universal arrangement (face-to-face or back-to-back) without requiring selective assembly, simplifying installation and ensuring optimal preload and performance.
- Sealed & Pre-lubricated: As a sealed bearing pre-lubricated with grease, it is protected from contamination and is ready for immediate use, offering long-term, maintenance-free operation within its specified temperature range.
S7008 CD/P4ADGA Bearing Typical Application Areas
This high-precision bearing is ideally suited for demanding applications, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Robotic Arms and Precision Positioning Systems
