7007 CD/P4AQBCD
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7007 CD/P4AQBCD
Basic Information
System of measurement
Metric
Weight
0.61 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
35 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
62 mm
Outside diameter tolerance
-0.004mm to 0
Width
56 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
16
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
9360 lbf
Radial static load rating
8550 lbf
Limiting speed
56 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
Heavy / Class D
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
Price available upon request.
Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
REQUEST A QUOTE
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7007 CD/P4AQBCD Bearing Product Overview & Core Advantages
The 7007 CD/P4AQBCD is a precision quadruplex angular contact ball bearing designed for applications demanding exceptional rigidity and load capacity. This metric system bearing features a back-to-back quadruplex (QBC) matched arrangement and a Heavy (Class D) preload, making it ideal for machine tool spindles and other high-precision machinery where maximum stiffness and rotational accuracy under combined loads are critical. Its open design allows for optimized lubrication management in controlled environments.
7007 CD/P4AQBCD Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CD | Indicates a 15° contact angle, optimized for high rigidity and moderate axial load capacity. |
| P4A | Denotes an ultra-high precision tolerance class (superior to ABEC 7), ensuring minimal runout and vibration for demanding applications. |
| QBC | Specifies the bearing is part of a Quadruplex Back-to-Back matched set of 4 bearings, providing extremely high moment stiffness. |
| D | Signifies a Heavy preload, which maximizes system rigidity and minimizes deflection under load. |
7007 CD/P4AQBCD Bearing Structural Features & Performance Benefits
- Extreme Rigidity & Load Capacity: The quadruplex back-to-back arrangement and heavy preload create an exceptionally stiff bearing system capable of handling significant combined radial and axial loads and high overturning moments, which is crucial for maintaining precision in machining operations.
- High-Speed Capability: The lightweight phenolic resin cage reduces centrifugal forces, contributing to stable operation at high rotational speeds (limiting speed of 56,000 rpm). The 15° contact angle further supports high-speed performance.
- Precision Performance: Manufactured to a P4A tolerance class, this bearing guarantees superior running accuracy, low noise, and minimal heat generation, essential for high-precision spindles.
- Optimized Material Selection: Constructed from chrome steel for both rings and balls, the bearing offers high durability, wear resistance, and a long operational life under demanding conditions.
7007 CD/P4AQBCD Bearing Typical Application Areas
This bearing is specifically engineered for high-performance applications where precision, speed, and rigidity are non-negotiable. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Rotary Tables: Indexing and machining tables requiring high axial and moment stiffness.
- High-Frequency Machining Spindles: Applications demanding the ultimate in rotational accuracy and dynamic stability.
- Advanced Robotics: Precision joints and arms in automated manufacturing systems.
