7003 CD/P4ADT
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7003 CD/P4ADT Bearing Product Overview & Core Advantages
The 7003 CD/P4ADT is a precision angular contact ball bearing configured in a duplex tandem (DT) arrangement. This matched set is engineered to deliver exceptional performance in applications requiring high rigidity and superior axial load capacity in a single direction. Manufactured to P4A tolerance class, it offers extremely tight dimensional control for precise shaft positioning. The phenolic resin cage and factory-applied lubrication enable high-speed operation up to 121,000 rpm, making it an ideal solution for demanding, high-precision machinery.
7003 CD/P4ADT Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7003 | Basic bearing series and size designation (17mm bore, 35mm OD) |
| C | 15° contact angle, optimized for combined loads |
| D | Duplex bearing set |
| P4A | High precision tolerance class with enhanced running accuracy |
| DT | Duplex Tandem arrangement for maximum axial stiffness |
7003 CD/P4ADT Bearing Structural Features & Performance Benefits
Enhanced Rigidity & Load Capacity: The duplex tandem configuration pairs two bearings to create an exceptionally rigid assembly capable of withstanding heavy axial loads in one direction while handling significant radial loads. This design effectively doubles the axial stiffness compared to a single bearing.
High-Speed Performance: The lightweight phenolic resin cage minimizes centrifugal forces and ensures stable operation at the limiting speed of 121,000 rpm. The optimized internal geometry and factory lubrication further contribute to reduced friction and heat generation.
Precision Engineering: Manufactured to P4A tolerance class with bore and outside diameter tolerances of -0.004mm to 0, this bearing ensures minimal runout and precise rotational accuracy. The 15° contact angle provides an optimal balance between radial and axial load capacity.
Durable Construction: Both rings and balls are made from high-grade chrome steel, providing excellent wear resistance and longevity in demanding operating conditions within the specified temperature range of -30°C to 110°C.
7003 CD/P4ADT Bearing Typical Application Areas
- Machine Tool Spindles - High-speed machining centers and precision grinding spindles
- Precision Instrumentation - Measuring devices and laboratory equipment requiring minimal vibration
- High-Speed Motors - Spindle motors and servo motors demanding precise axial positioning
- Medical Equipment - Dental handpieces and surgical tool drives
- Aerospace Components - Gyroscopes and navigation system assemblies
