S71910 ACDTP/P4B
Sealed Super Precision Angular Contact Ball Bearings
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S71910 ACDTP/P4B Bearing Product Overview & Core Advantages
The S71910 ACDTP/P4B is a high-precision, single-row angular contact ball bearing designed for demanding applications requiring exceptional accuracy and rigidity. Engineered to a P4 (ABEC-7) tolerance class, it is optimized to accommodate combined loads—simultaneously handling significant radial loads and thrust loads in one direction. Its compact design, featuring a 50 mm bore and a 12 mm width, provides a high-stiffness solution for space-constrained, high-speed spindles and precision machinery, ensuring reliable performance and long service life.
Model Code Breakdown
- S71910: Denotes a high-precision angular contact ball bearing series with a 50mm bore.
- AC: Signifies Angular Contact design with a 25° contact angle.
- D: Indicates a "High" internal preload level for enhanced rigidity.
- TP: Represents the Phenolic (Textolite) cage, which is lightweight and ideal for high-speed operation.
- P4B: Specifies the P4 (ABEC-7) precision tolerance class and "B" indicates specific internal geometry optimizations for preload.
S71910 ACDTP/P4B Bearing Structural Features & Performance Benefits
High Rigidity and Precision: The combination of a 25° contact angle and a specified preload (D) ensures maximum system stiffness, minimizing deflection under load for superior machining accuracy.
Superior Load Capacity: The optimized internal geometry allows the bearing to support substantial combined radial and axial loads efficiently.
High-Speed Capability: The lightweight phenolic cage (TP) reduces centrifugal forces, while the precision-ground chrome steel components contribute to a high limiting speed of 16,000 rpm.
Sealed and Lubricated for Life: As a sealed and pre-lubricated unit, the bearing is protected from contamination and is ready for immediate installation, offering maintenance-free operation within its specified temperature range.
S71910 ACDTP/P4B Bearing Typical Application Areas
The S71910 ACDTP/P4B is ideally suited for high-performance applications where precision and speed are critical. Common uses include:
- Machine Tool Spindles (e.g., for milling, grinding, and turning centers)
- High-Frequency Motors and Spindles
- Precision Robotics and Automation Equipment
- Medical and Dental Instrument Drives
- Aerospace Actuation Systems
