71810 ACDGA/P4
71800 Series Super Precision Angular Contact Ball Bearings
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71810 ACDGA/P4 Bearing Product Overview & Core Advantages
The 71810 ACDGA/P4 is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Manufactured to P4 tolerance class, it delivers superior running accuracy, making it ideal for high-speed spindles and precision machinery. Its 25° contact angle provides excellent capacity for combined loads, effectively handling both radial and axial forces. The bearing comes pre-lubricated and is part of a Universal Matchable (SU) set, allowing for flexible mounting configurations to achieve optimal preload and system rigidity.
71810 ACDGA/P4 Bearing Model Code Explained, Specifications & Naming Convention
- 71810: Basic designation indicating a metric, single-row angular contact ball bearing with a 50mm bore and 65mm outside diameter.
- AC: Signifies Angular Contact design with a 25° contact angle.
- D: Indicates the bearing is filled with a Standard Grease lubricant.
- GA: Denotes a specific internal clearance and preload category, in this case, Extra light preload (Class A).
- P4: Specifies the tolerance class, indicating very high dimensional and running accuracy exceeding ABEC 7 standards.
71810 ACDGA/P4 Bearing Structural Features & Performance Benefits
The performance of the 71810 ACDGA/P4 is driven by its precision construction. The use of a phenolic resin cage contributes to lower friction and excellent performance at high speeds, with a limiting speed of 46,000 rpm. The chrome steel rings and balls ensure high durability and fatigue life under demanding dynamic and static loads (1550 lbf / 1654 lbf). The 25° contact angle is optimized to provide a high level of rigidity and efficient thrust capacity. As a Universal Matchable (SU) bearing, it can be mounted in various preloaded arrangements (e.g., back-to-back, face-to-face) with other bearings from the same set to create a stiffer, more precise bearing system.
71810 ACDGA/P4 Bearing Typical Application Areas
This precision angular contact bearing is engineered for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Gearboxes: Where high rotational accuracy and low noise are critical.
- High-Frequency Motors and Spindles: Used in PCB drilling and routing.
- Medical and Laboratory Equipment: Centrifuges and other precision rotary devices.
- Robotics: Arm joints and precision reducers requiring high rigidity.
