71934 CDGA/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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71934 CDGA/P4A Bearing Product Overview & Core Advantages
The 71934 CDGA/P4A is a single row angular contact ball bearing designed for applications demanding ultra-high precision and superior running accuracy. Manufactured to P4A tolerance class, this bearing delivers exceptional dimensional stability and rotational precision. Its 15° contact angle is optimized to support combined radial and axial loads simultaneously, making it ideal for high-speed spindles and precision machinery. The extra light preload (Class A) ensures minimal deflection under operational stresses, contributing to outstanding system rigidity and positioning accuracy.
71934 CDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71934 | Basic bearing designation indicating metric dimensions (170mm bore, 230mm OD, 28mm width) |
| C | 15° contact angle design |
| DG | Universal matchable bearing (can be paired in any combination) |
| A | Extra light preload classification |
| P4A | Super precision tolerance class exceeding ABEC 7 standards |
71934 CDGA/P4A Bearing Structural Features & Performance Benefits
Precision Engineering: The P4A tolerance class ensures minimal runout and vibration, critical for applications requiring extreme rotational accuracy. The phenolic cage provides excellent dimensional stability and reduced friction at high speeds.
High-Speed Capability: With a limiting speed of 16,250 rpm, this bearing is engineered for demanding high-speed applications. The optimized internal geometry and 29 high-precision chrome steel balls ensure smooth operation and reduced heat generation.
Superior Load Capacity: Rated for 29,925 lbf dynamic and 37,350 lbf static radial loads, the bearing delivers reliable performance under significant operational stresses. The 15° contact angle provides effective axial load support while maintaining radial load capacity.
Universal Matching Design: As a universal matchable bearing, multiple units can be arranged in sets of three to create optimized bearing systems with pre-defined preload and stiffness characteristics.
71934 CDGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles - High-speed milling, grinding, and turning centers
- Precision Robotics - High-accuracy robotic arms and positioning systems
- Aerospace Systems - Guidance systems and flight control mechanisms
- Medical Equipment - CT scanners, dental drills, and surgical robots
- High-Frequency Spindles - PCB drilling and precision machining applications
- Optical Instrumentation - Measuring devices and inspection equipment
