71936 ACDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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Materials
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71936 ACDGA/HCP4A Bearing Product Overview & Core Advantages
The 71936 ACDGA/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional rotational accuracy and reliability. This single-row bearing features a 25° contact angle and is supplied as part of a universally matchable (SU) set of three bearings, allowing for flexible mounting configurations to achieve optimal preload and system rigidity. Its core advantages include the ability to accommodate combined radial and axial loads simultaneously, superior high-speed performance enabled by a phenolic cage and ceramic balls, and outstanding operational precision guaranteed by its P4A tolerance class.
Model Code Breakdown
- 71936: Basic bearing series and size designation (180mm bore, 250mm OD).
- AC: Angular Contact design.
- D: High contact angle (25°).
- GA: Specific internal design and preload grade (Extra light / Class A).
- HCP4A: Universal Matchable (SU) bearing set with P4A tolerance class.
71936 ACDGA/HCP4A Bearing Structural Features & Performance Benefits
High-Precision & Rigidity: Manufactured to P4A tolerance class with extremely tight dimensional tolerances on the bore, outside diameter, and width, ensuring precise shaft positioning and system stability. The specified extra light preload (Class A) minimizes deflection under load for enhanced rigidity.
High-Speed & Temperature Performance: The combination of a lightweight phenolic cage and ceramic balls significantly reduces centrifugal forces, enabling a high limiting speed of 16,250 rpm. This construction also provides superior performance across a wide operating temperature range (-30°C to 110°C).
High Load Capacity: With a dynamic load rating of 35,775 lbf and a static load rating of 45,000 lbf, this bearing is designed to handle significant combined loads. The 25° contact angle is optimized for sustaining substantial axial loads in one direction.
Pre-Lubricated & Open Design: The bearing comes pre-lubricated for immediate operation. The open seal type allows for the use of specialized circulating oil or grease systems in high-performance applications, facilitating optimal heat dissipation and contamination flushing.
71936 ACDGA/HCP4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers.
- High-Speed Machining Centers: Where exceptional rotational accuracy and speed are critical.
- Precision Gearboxes and Robotic Drives.
- Medical Equipment: Advanced imaging systems and surgical handpieces.
- Aerospace Actuators and Avionics Systems.
