7015 CD/P4AQBCC
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7015 CD/P4AQBCC
Basic Information
System of measurement
Metric
Weight
2.51 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
80 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
31500 lbf
Radial static load rating
44100 lbf
Limiting speed
22 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Quadruplex Back-to-Back (QBC)
Number of bearings in matched set
4
Universal matching bearing
No (Standard)
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 CD/P4AQBCC Bearing Product Overview & Core Advantages
The 7015 CD/P4AQBCC is a precision quadruplex matched set of angular contact ball bearings designed for applications demanding exceptional rigidity and accuracy. This metric bearing set, preloaded to a Moderate / Class C level, is engineered to handle significant combined loads (radial and axial) simultaneously. Its back-to-back arrangement (QBC) provides high moment stiffness and excellent operational stability, making it ideal for high-precision, high-reliability machinery where rotational accuracy is paramount.
7015 CD/P4AQBCC Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7015 | Basic bearing series, indicating a 75 mm bore and 115 mm outside diameter. |
| C | Specifies a 15° contact angle, optimized for high-speed performance and axial load capacity. |
| D | Indicates the bearing is part of a matched set. |
| P4A | Denotes a high precision tolerance class, exceeding ABEC 7/ISO P4 standards, ensuring minimal runout and superior rotational accuracy. |
| QBCC | Defines the matched arrangement as Quadruplex Back-to-Back (QBC) with a Moderate (C) preload class. |
7015 CD/P4AQBCC Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The quadruplex back-to-back (QBC) arrangement of four bearings creates an extremely rigid system capable of withstanding heavy combined loads and moment loads, ensuring precise shaft positioning and minimal deflection under operation.
- Optimized Load Capacity: The 15° contact angle is engineered to efficiently support substantial axial loads in one direction while maintaining excellent radial load capacity, making it suitable for complex loading conditions.
- Precision & High-Speed Capability: Manufactured to P4A tolerance class with tight dimensional controls (bore/OD tolerance: -0.004mm to 0), this set guarantees smooth, quiet, and accurate rotation. The phenolic cage and optimized internal geometry contribute to a high limiting speed of 22,000 rpm.
- Superior Material Construction: Made from chrome steel for both rings and balls, the bearing offers high fatigue life and durability. The phenolic cage provides strength and stability at high speeds with low friction.
7015 CD/P4AQBCC Bearing Typical Application Areas
This high-precision, high-rigidity bearing set is specifically designed for advanced industrial applications, including:
- High-Speed Machine Tool Spindles (e.g., milling, grinding, and machining centers)
- Precision Gearboxes and Robotic Drives
- High-Frequency Motors and Aerospace Actuators
- Medical Equipment such as CT scanners and dental handpieces
- Test and Measurement Equipment requiring ultra-precise rotational accuracy
