S71907 CDTP/HCP4B
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
Ball & Washer Dimensions
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S71907 CDTP/HCP4B Bearing Product Overview & Core Advantages
The S71907 CDTP/HCP4B is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This single-row bearing is distinguished by its ceramic balls and P4 (ABEC-7) tolerance class, ensuring ultra-low runout and smooth operation. Its key advantage lies in its ability to handle high-speed operation and combined loads, making it an ideal choice for high-rigidity, high-RPM spindles and precision machinery where reliability is paramount.
S71907 CDTP/HCP4B Bearing Model Code Explained, Specifications & Naming Convention
The model number S71907 CDTP/HCP4B provides a detailed technical specification:
- S7: Indicates a series of high-precision, high-speed angular contact ball bearings.
- 1907: Denotes the size series; '19' for the series and '07' for a 35mm bore diameter.
- C: Specifies a 15° contact angle, optimized for high-speed applications.
- D: Signifies a preload is applied to the bearing for increased rigidity.
- T: Indicates a phenolic resin (Phenolic) cage, suitable for high speeds.
- P: Confirms the bearing is lubricated from the factory.
- HCP4B: A composite suffix where HC denotes Hybrid Ceramic construction (steel rings with ceramic balls), and P4 is the P4/ABEC-7 precision tolerance class.
S71907 CDTP/HCP4B Bearing Structural Features & Performance Benefits
The S71907 CDTP/HCP4B's construction delivers distinct performance advantages:
- High-Speed & Low Friction Performance: The combination of ceramic balls and a lightweight phenolic cage significantly reduces centrifugal forces and friction, enabling a high limiting speed of 32,000 rpm.
- High Rigidity & Accuracy: The application of a preload minimizes axial and radial play, providing superior system stiffness and precise rotational accuracy, essential for machining and precision instrumentation.
- Extended Service Life & Reliability: Hybrid ceramic construction offers enhanced durability, electrical resistance, and the ability to operate at a wider temperature range (-30° to 110 °C) compared to all-steel bearings.
- Superior Load Capacity: The 15° contact angle is engineered to efficiently support combined (radial and axial) loads, with a high dynamic load rating of 2194 lbf.
S71907 CDTP/HCP4B Bearing Typical Application Areas
This bearing is engineered for high-performance applications across various industries, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: High-accuracy joints and arm linkages.
- High-Frequency Motors and Spindles: Where maximum RPM and minimal vibration are critical.
- Medical and Dental Equipment: High-speed handpieces and diagnostic scanners.
- Aerospace and Defense Systems: Gyroscopes, navigation systems, and auxiliary power units.
