S7005 CDGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7005 CDGA/P4A
Basic Information
System of measurement
Metric
Weight
0.079 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
25 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
47 mm
Outside diameter tolerance
-0.004mm to 0
Width
12 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
6.35 mm
Ball quantity
14
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
2151 lbf
Radial static load rating
1170 lbf
Limiting speed
83 X 1000 rpm
Lubrication
Grease
Matched arrangement
Single
Number of bearings in matched set
4
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
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In Stock
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S7005 CDGA/P4A Bearing Product Overview & Core Advantages
The S7005 CDGA/P4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. As a single bearing with Universal Matchable (SU) designation, it can be precisely paired with other bearings to form optimized sets. Its core advantages include the ability to accommodate combined loads (radial and axial), superior running accuracy from its P4A tolerance class, and high-speed capability enabled by its phenolic cage and grease lubrication. The sealed design ensures long-term performance with minimal maintenance.
S7005 CDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7005 | Bearing series and size designation (25mm bore, 47mm OD, 12mm width). |
| CDGA | Indicates a Universal Matchable (SU) bearing with a specific contact angle and preload. "A" denotes Extra light preload. |
| P4A | Specifies the tolerance class, representing very high precision levels for dimensional and running accuracy. |
S7005 CDGA/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The angular contact design with a 15° contact angle provides excellent resistance to combined radial and axial loads, ensuring stable operation under demanding conditions.
- Superior Precision: Manufactured to P4A tolerance class, this bearing guarantees minimal runout and vibration, which is critical for high-precision spindles and machinery.
- High-Speed Performance: The lightweight phenolic cage and optimized grease lubrication work in concert to enable a high limiting speed of 83,000 rpm, reducing friction and heat generation.
- Sealed and Ready-to-Use: The sealed design protects against contamination and retains lubrication, offering a long service life and maintenance-free operation within the specified temperature range (-30°C to 110°C).
S7005 CDGA/P4A Bearing Typical Application Areas
This precision bearing is ideally suited for applications where high speed, accuracy, and reliability are paramount. Key industries and equipment include:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Medical and Dental Equipment
- Robotic Arms and Precision Gearboxes
