71803 CD/P4TBTF
71800 Series Super Precision Angular Contact Ball Bearings
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71803 CD/P4TBTF Bearing Product Overview & Core Advantages
The 71803 CD/P4TBTF is a precision angular contact ball bearing specifically designed for high-rigidity applications requiring exceptional rotational accuracy. This bearing features a triplex back-to-back (TBT) matched arrangement, providing superior stability and the ability to withstand combined loads (radial and axial). Manufactured to P4 tolerance class, it delivers outstanding running accuracy and is pre-lubricated for immediate use in demanding, high-speed machinery.
71803 CD/P4TBTF Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71803 | Basic bearing series and size designation |
| CD | Specific internal design and contact angle (15°) |
| P4 | High precision tolerance class for superior running accuracy |
| TBT | Triplex Back-to-Back matched arrangement of three bearings |
| F | Indicates a matched bearing set with preload |
71803 CD/P4TBTF Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The triplex back-to-back arrangement creates an extremely rigid bearing system capable of handling significant combined radial and axial loads from multiple directions. This configuration provides excellent moment load resistance.
Precision Performance: Manufactured to P4 tolerance class with a consistent 15° contact angle, this bearing ensures minimal runout and vibration, making it ideal for precision applications.
High-Speed Capability: The phenolic cage material offers excellent strength-to-weight ratio and smooth operation at the rated limiting speed of 103,000 rpm.
Optimized Design: With 18 precision balls of 2.381 mm diameter arranged in the angular contact configuration, the bearing provides balanced load distribution and smooth rotational characteristics.
71803 CD/P4TBTF Bearing Typical Application Areas
The 71803 CD/P4TBTF is specifically engineered for applications demanding the highest levels of precision and rigidity:
- Machine Tool Spindles - High-speed machining centers and precision grinding machines
- Precision Instrumentation - Measuring equipment and laboratory instruments
- High-Speed Motors - Spindle motors and high-frequency applications
- Aerospace Components - Guidance systems and precision mechanisms
- Medical Equipment - Dental handpieces and surgical tools requiring exceptional accuracy
