7007 CD/P4ADT
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7007 CD/P4ADT
Basic Information
System of measurement
Metric
Weight
0.31 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
28 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
5738 lbf
Radial static load rating
4275 lbf
Limiting speed
56 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Tandem (DT)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Available
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.
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7007 CD/P4ADT Bearing Product Overview & Core Advantages
The 7007 CD/P4ADT is a precision angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This duplex tandem (DT) arrangement features two bearings preloaded against each other, delivering superior axial load capacity in one direction and enhanced system stiffness. Manufactured to P4A tolerance class, it ensures minimal runout and precise rotational performance, making it ideal for high-speed spindles and other high-precision machinery.
7007 CD/P4ADT Bearing Model Code Explained, Specifications & Naming Convention
The model number 7007 CD/P4ADT breaks down as follows:
- 7007: Standard series designation indicating a 35mm bore, 62mm OD, and 28mm width.
- C: Denotes a 15° contact angle, optimized for high-speed operation and moderate axial loads.
- D: Indicates a duplex tandem (DT) preload arrangement, where two bearings are paired to increase axial rigidity and load capacity in one direction.
- P4A: Specifies an ABEC 7 / ISO P4 precision class with enhanced width and radial runout tolerances for superior rotational accuracy.
- Open: The bearing is supplied without seals or shields, allowing for custom lubrication schemes and maximum speed capability.
- Phenolic Cage: The cage material is specified, offering high strength and suitability for high-speed applications.
7007 CD/P4ADT Bearing Structural Features & Performance Benefits
- High Rigidity & Axial Load Capacity: The duplex tandem (DT) arrangement combines two bearings to create a highly rigid assembly capable of supporting significant axial loads in one direction, making it indispensable for preloaded spindle systems.
- Precision Performance: Built to P4A tolerance class, this bearing guarantees extremely tight dimensional and running accuracy, minimizing vibration and supporting high rotational precision.
- High-Speed Capability: The 15° contact angle and lightweight phenolic cage are engineered to reduce centrifugal forces and friction, enabling a high limiting speed of 56,000 rpm.
- Optimized for Custom Lubrication: The open design allows for the use of specialized lubricants tailored to specific application needs, such as oil-mist or oil-jet systems, for optimal performance in high-speed environments.
7007 CD/P4ADT Bearing Typical Application Areas
This bearing is specifically engineered for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Grinding Spindles: Applications demanding extreme accuracy and rigidity.
- High-Frequency Motors and High-Speed Drives.
- Medical Equipment and Dental Handpieces requiring high RPM and precision.
- Aerospace Actuators and Instrumentation.
