7003 CE/P4ADT
7000 Series Super Precision Angular Contact Ball Bearings
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7003 CE/P4ADT Bearing Product Overview & Core Advantages
The 7003 CE/P4ADT represents a premium duplex tandem angular contact ball bearing designed for applications demanding exceptional precision and rigidity. This P4A tolerance class bearing is preloaded and supplied as a matched set, enabling it to handle significant combined loads (radial and axial) in one direction with superior accuracy. Its compact design, featuring a 17mm bore and 35mm outside diameter, makes it ideal for high-speed spindles and other precision machinery where space constraints and high rigidity are critical.
7003 CE/P4ADT Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7003 | Basic bearing series, indicating a 17mm bore, 35mm OD, and 20mm width. |
| CE | Indicates a 15° contact angle, optimized for high-speed operation and axial load capacity. |
| P4A | Denotes an ultra-high precision tolerance class with enhanced running accuracy requirements. |
| DT | Signifies a Duplex Tandem arrangement. Two bearings are mounted together to increase axial load capacity in a single direction. |
7003 CE/P4ADT Bearing Structural Features & Performance Benefits
Optimized for High-Speed & High Rigidity: The duplex tandem (DT) arrangement creates an exceptionally rigid bearing system, effectively resisting deflection under heavy combined loads. The 15° contact angle is engineered for superior high-speed performance.
Precision & Accuracy: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration, which is critical for applications requiring extreme rotational accuracy.
Superior Cage Design: The phenolic resin cage offers excellent strength-to-weight ratio, reduced friction, and is ideal for high-speed operation, contributing to the impressive limiting speed of 115,000 rpm.
Preloaded & Matched Set: Supplied as a preloaded and matched pair, the bearing set is ready for installation, eliminating complex adjustment procedures and guaranteeing consistent, pre-defined performance.
7003 CE/P4ADT Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and CNC lathes.
- Precision Rotary Systems: High-frequency motors, encoder systems, and measuring instruments.
- Medical & Dental Equipment: High-speed handpieces and laboratory centrifuges.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and navigation equipment.
