71968 ACDMA/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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71968 ACDMA/P4A Bearing Product Overview & Core Advantages
The 71968 ACDMA/P4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. Designed to accommodate combined loads (radial and axial) simultaneously, this bearing features a 25° contact angle for optimal axial load capacity. Manufactured to P4 (ABEC-7) tolerance class, it delivers superior running accuracy, making it ideal for high-speed spindles and precision machinery. Its phenolic cage and preloaded design ensure stable operation under demanding conditions.
71968 ACDMA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Impact |
|---|---|---|
| AC | Angular Contact design | Enables handling of combined radial and axial loads |
| DM | Duplex Matched (preloaded) | Provides high rigidity and minimal axial play |
| A | 30° contact angle variant (25° actual) | Optimized for axial load capacity |
| P4 | Precision tolerance class (ABEC-7) | Ensures high-precision operation and smooth running |
71968 ACDMA/P4A Bearing Structural Features & Performance Benefits
High Rigidity & Precision: The single-row angular contact design with preload delivers exceptional stiffness, minimizing deflection under load. Manufactured to P4 tolerance class, it guarantees precise rotational accuracy for critical applications.
Superior Load Capacity: With a 25° contact angle and optimized internal geometry, this bearing efficiently handles combined radial and axial loads. The radial dynamic load rating of 81,900 lbf and static load rating of 144,000 lbf ensure reliable performance under heavy loads.
High-Speed Capability: The phenolic cage provides excellent strength-to-weight ratio and smooth operation at limiting speeds up to 3,400 rpm. The open design facilitates efficient lubrication management for high-speed applications.
Premium Material Construction: Manufactured from chrome steel for both rings and balls, this bearing offers superior wear resistance and durability. The phenolic cage ensures reliable operation across the temperature range of -30°C to 110°C.
71968 ACDMA/P4A Bearing Typical Application Areas
- Machine tool spindles and high-precision machining centers
- High-speed industrial pumps and compressors
- Precision gearboxes and transmission systems
- Aerospace components and aviation equipment
- Medical imaging devices and laboratory equipment
- Robotic arm joints and automation systems
