S71924 CDGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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S71924 CDGA/P4A Bearing Product Overview & Core Advantages
The S71924 CDGA/P4A is a super-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high-speed performance. As a universally matchable (SU) bearing supplied in sets of four, it enables optimized preload configurations when mounted in pairs. Its key characteristics include the ability to handle combined radial and axial loads simultaneously, outstanding dimensional stability with P4A tolerance class, and reliable operation facilitated by phenolic cage and factory-applied grease. This bearing is engineered for high-rigidity, high-reliability spindles and precision machinery.
S71924 CDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S | Super-precision bearing |
| 7 | Angular contact design |
| 1924 | Size designation (120mm bore, 165mm OD, 22mm width) |
| CDGA | Contact angle 15°, universal matching, phenolic cage |
| P4A | Extra-light preload and P4 precision class |
S71924 CDGA/P4A Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double-row angular contact design provides superior rigidity and can accommodate combined radial and axial loads from both directions. With a 15° contact angle, it offers optimal balance between radial and axial load capacity.
High-Speed Performance: The phenolic resin cage ensures excellent dimensional stability at high speeds while reducing friction and heat generation. This contributes to the bearing's impressive limiting speed of 11,000 rpm.
Precision Engineering: Manufactured to P4A tolerance class with extremely tight dimensional tolerances (bore/OD: -0.004mm to 0), this bearing guarantees minimal runout and vibration for precision applications.
Universal Matching Capability: As a universally matchable (SU) bearing supplied in sets of four, it allows for flexible mounting arrangements and precise preload control when installed in pairs.
S71924 CDGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers
- Precision Machinery: Coordinate measuring machines and optical equipment
- High-Speed Drives: Industrial spindles and high-frequency motors
- Aerospace Components: Gyroscopes and navigation systems
- Medical Equipment: Dental handpieces and surgical tools
