7015 CDGC/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7015 CDGC/P4A
Basic Information
System of measurement
Metric
Weight
0.63 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
75 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
115 mm
Outside diameter tolerance
-0.004mm to 0
Width
20 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
12.7 mm
Ball quantity
20
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
11858 lbf
Radial static load rating
11025 lbf
Limiting speed
24 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Moderate / Class C
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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7015 CDGC/P4A Bearing Product Overview & Core Advantages
The 7015 CDGC/P4A is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class, it guarantees superior dimensional and running accuracy. This bearing is preloaded (Moderate / Class C) and comes lubricated from the factory, making it ready for immediate installation. Its key advantage lies in its ability to support high-speed operation (up to 24,000 rpm) while accommodating significant combined radial and axial loads, making it an ideal choice for high-performance spindles and precision machinery.
7015 CDGC/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7015 | Basic bearing series and size designation (75mm bore, 115mm OD, 20mm width). |
| CD | A 15° contact angle, optimized for high-speed performance and moderate axial load capacity. |
| GC | Indicates a specific internal clearance and preload group for Moderate (Class C) preload. |
| P4A | Denotes an ultra-precision tolerance class with enhanced running accuracy requirements. |
7015 CDGC/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The P4A tolerance class ensures minimal runout and vibration, which is critical for applications requiring extreme positional accuracy. The Moderate preload eliminates internal clearance, providing high system stiffness and precise shaft positioning.
- Optimized High-Speed Performance: The 15° contact angle and lightweight phenolic cage are engineered to minimize centrifugal forces and friction, enabling stable operation at the high limiting speed of 24,000 rpm.
- Superior Load Capacity: The bearing's design allows it to handle significant combined loads. With a dynamic load rating of 11,858 lbf and a static load rating of 11,025 lbf, it offers reliable performance under demanding conditions.
- Universal Matching (SU): This bearing is universally matchable, meaning any two bearings can be paired in a duplex set (back-to-back or face-to-face) without selective assembly, simplifying procurement and installation for preloaded arrangements.
7015 CDGC/P4A Bearing Typical Application Areas
This bearing is engineered for high-precision, high-speed rotational systems. Its primary applications include:
- Machine Tool Spindles: For CNC milling, grinding, and turning centers where precision and high rigidity are paramount.
- High-Frequency Motors and Spindles: Ideal for applications demanding rapid acceleration and deceleration.
- Precision Instrumentation: Used in measuring devices and analytical equipment that require minimal rotational error.
- Aerospace Positioning Systems: For gyroscopes, radar antennas, and other systems requiring high accuracy and reliability.
