7015 CD/P4ATBTB
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7015 CD/P4ATBTB
Basic Information
System of measurement
Metric
Weight
1.88 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
60 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
25650 lbf
Radial static load rating
32850 lbf
Limiting speed
22 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Triplex Back-to-Back (TBT)
Number of bearings in matched set
3
Universal matching bearing
No (Standard)
Preload
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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7015 CD/P4ATBTB Bearing Product Overview & Core Advantages
The 7015 CD/P4ATBTB is a precision angular contact ball bearing configured as a triplex back-to-back (TBT) matched set. Engineered for applications demanding exceptional rotational accuracy and rigidity, this bearing set is designed to accommodate combined loads (radial and axial) simultaneously. Its P4A tolerance class ensures ultra-precise running accuracy, making it ideal for high-speed spindles and other precision machinery. The light preload (Class B) minimizes deflection under operational loads, enhancing system stability and performance.
7015 CD/P4ATBTB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7015 | Basic bearing designation, indicating a 75 mm bore and 115 mm outside diameter. |
| CD | Specifies a 15° contact angle, optimized for high-speed operation and high axial load capacity. |
| P4A | Indicates an ultra-precision tolerance class with enhanced running accuracy requirements. |
| TBT | Denotes a Triplex Back-to-Back matched arrangement of three bearings, providing maximum rigidity and moment load capacity. |
7015 CD/P4ATBTB Bearing Structural Features & Performance Benefits
- High Rigidity & Moment Load Capacity: The triplex back-to-back (TBT) arrangement creates a highly rigid bearing system capable of withstanding significant moment loads and complex force scenarios, ensuring minimal shaft deflection.
- Superior High-Speed Performance: The 15° contact angle and phenolic cage contribute to lower friction and heat generation, enabling stable operation at high rotational speeds up to 22,000 rpm.
- Precision & Accuracy: Manufactured to P4A tolerance class, these bearings guarantee extremely tight dimensional and running accuracy, which is critical for applications like machine tool spindles.
- Optimized Load Ratings: With a dynamic load rating of 25,650 lbf and a static load rating of 32,850 lbf, the set offers reliable performance under demanding combined radial and axial loads.
- Pre-lubricated & Ready-to-Install: The bearings are supplied lubricated, simplifying installation and ensuring immediate operational readiness.
7015 CD/P4ATBTB Bearing Typical Application Areas
This precision triplex bearing set is specifically designed for high-performance applications where rigidity, speed, and accuracy are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: For PCB drilling, engraving, and other high-accuracy machining operations.
- High-Frequency Motors: Where minimal runout and high rotational stability are required.
- Industrial Pumps & Compressors: For applications requiring precise shaft positioning and high-speed operation.
