S7210 CDGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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S7210 CDGA/P4A Bearing Product Overview & Core Advantages
The S7210 CDGA/P4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. Engineered with an Extra Light (A) preload and manufactured to P4A tolerance class, this bearing delivers superior rotational accuracy and running smoothness. Its 15° contact angle is optimized to support combined loads, efficiently handling both radial and axial forces. The sealed design with phenolic cage makes it an ideal high-speed bearing solution for precision machinery.
S7210 CDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7210 | Basic bearing designation with 50mm bore, 90mm OD |
| C | 15° contact angle design |
| DG | Universal matching designation (can be paired) |
| A | Extra light preload for minimal deflection |
| P4A | High precision tolerance class superior to ABEC 7 |
S7210 CDGA/P4A Bearing Structural Features & Performance Benefits
High Rigidity & Precision: The P4A tolerance class ensures minimal runout and vibration, while the extra light preload provides optimal stiffness without excessive friction, making it ideal for precision applications.
Superior Load Capacity: With a dynamic load rating of 10,102 lbf and static load rating of 7,650 lbf, this bearing reliably handles significant combined radial and axial loads thanks to its optimized 15° contact angle.
High-Speed Performance: The phenolic cage enables stable operation at limiting speeds up to 34,000 rpm, while the sealed construction retains lubrication and prevents contamination.
Universal Matching Capability: Designed as Universal Matchable (SU), these bearings can be precisely paired in sets of 2 to create optimized bearing arrangements for complex load requirements.
S7210 CDGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles - High-precision machining centers and grinding spindles
- Precision Instrumentation - Measuring equipment and laboratory instruments
- High-Speed Motors - Spindle motors and high-RPM drive systems
- Medical Equipment - Dental handpieces and surgical tools
- Aerospace Components - Guidance systems and auxiliary power units
