7007 CD/P4ATBTD
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7007 CD/P4ATBTD
Basic Information
System of measurement
Metric
Weight
0.46 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
42 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
7605 lbf
Radial static load rating
6412 lbf
Limiting speed
56 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
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
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7007 CD/P4ATBTD Bearing Product Overview & Core Advantages
The 7007 CD/P4ATBTD is a high-precision angular contact ball bearing supplied as a triplex back-to-back (TBT) matched set. Engineered for applications demanding exceptional rigidity and accuracy, this bearing configuration is designed to handle significant combined loads (radial and axial) simultaneously. Its P4A tolerance class ensures ultra-precision running accuracy, making it ideal for high-performance spindles and other critical machinery where high rigidity and operational stability are paramount.
7007 CD/P4ATBTD Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CD | Indicates a 15° contact angle and specific internal design optimized for high rigidity. |
| P4A | Denotes an ultra-precision tolerance class with running accuracy requirements tighter than ABEC 7/ISO P4. |
| TBT | Signifies a Triplex Back-to-Back preloaded matched set, consisting of three bearings. |
| D | Specifies a Heavy preload for maximum system stiffness. |
7007 CD/P4ATBTD Bearing Structural Features & Performance Benefits
- Exceptional Rigidity: The triplex back-to-back arrangement and heavy preload (Class D) create an extremely rigid bearing system that minimizes deflection under load, crucial for maintaining precision in machining and positioning applications.
- High Load Capacity: The 15° contact angle and robust construction enable the bearing to support substantial combined radial and axial loads.
- Precision Performance: Manufactured to P4A tolerance class with tight dimensional tolerances on the bore, outside diameter, and width, ensuring smooth, quiet, and accurate operation.
- High-Speed Capability: The lightweight phenolic resin cage reduces centrifugal forces, contributing to stable operation at the high limiting speed of 56,000 rpm.
- Durability: Manufactured from high-grade chrome steel for both rings and balls, providing excellent wear resistance and long service life.
7007 CD/P4ATBTD Bearing Typical Application Areas
This bearing is specifically designed for high-end, demanding applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, engraving, and high-frequency motor spindles.
- Robotics: High-accuracy robotic arms and joints.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other precision instrumentation.
