71810 ACD/P2DT
71800 Series Super Precision Angular Contact Ball Bearings
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71810 ACD/P2DT Bearing Product Overview & Core Advantages
The 71810 ACD/P2DT is a precision angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This duplex tandem (DT) matched set features a P2 tolerance class and is preloaded, enabling it to handle significant combined loads with high running accuracy. Its compact design, with a 50 mm bore and 14 mm width, makes it ideal for high-speed spindles and precision machinery where space is constrained and performance is critical.
71810 ACD/P2DT Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71810 | Basic bearing designation (50mm bore, 65mm OD, 14mm width) |
| AC | Angular Contact design with a 25° contact angle |
| D | Duplex bearing (two single bearings mounted together) |
| P2 | High Precision Tolerance Class for superior running accuracy |
| DT | Duplex Tandem arrangement, designed to carry heavy axial loads in one direction |
71810 ACD/P2DT Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex tandem arrangement significantly increases axial rigidity and load-carrying capacity, making it suitable for applications with heavy thrust loads. The 25° contact angle is optimized for handling combined radial and axial loads efficiently.
Precision Performance: Manufactured to P2 tolerance class, this bearing ensures minimal runout and vibration, which is critical for high-precision machining and instrumentation. The tight dimensional tolerances on bore, outside diameter, and width contribute to predictable and reliable performance.
High-Speed Capability: The lightweight phenolic cage reduces centrifugal forces, enabling stable operation at high speeds up to 41,000 rpm. The open design allows for efficient lubrication management in high-speed applications.
Durability & Material Quality: Constructed from chrome steel for both rings and balls, the bearing offers high fatigue resistance and long service life. The standard lubrication is suitable for a temperature range of -30°C to 110°C.
71810 ACD/P2DT Bearing Typical Application Areas
- Machine Tool Spindles for milling, grinding, and turning centers
- High-Speed Machining Centers requiring precision and rigidity
- Precision Instrumentation and measuring equipment
- High-Frequency Spindles in PCB drilling and routing
- Axial load positions in pumps and compressors
