S7017 CEGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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S7017 CEGA/P4A Bearing Product Overview & Core Advantages
The S7017 CEGA/P4A is a super-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high-speed performance. Its extra light preload (Class A) and P4A tolerance class ensure minimal runout and smooth operation under high rotational speeds. This bearing is engineered to accommodate combined loads (radial and axial) simultaneously, offering a compact and highly rigid solution for the most demanding spindle and precision machinery applications.
S7017 CEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7017 | Super-precision bearing series with 85mm bore diameter. |
| CE | 15° contact angle design, optimized for high-speed operation and rigid support. |
| GA | Indicates a universally matchable (SU) bearing, allowing for flexible mounting arrangements (DB, DF, DT) in sets. |
| P4A | Denotes an extra light preload and the highest precision tolerance class, ensuring minimal deflection and vibration. |
S7017 CEGA/P4A Bearing Structural Features & Performance Benefits
High Rigidity & Precision: The 15° contact angle and P4A tolerance class provide superior axial and radial stiffness, critical for maintaining accuracy in machine tool spindles. The extra light preload minimizes heat generation and ensures stable performance at high speeds.
Optimized for High-Speed Operation: The phenolic resin cage offers excellent strength-to-weight ratio, reducing centrifugal forces and enabling a high limiting speed of 28,000 rpm. This makes it an ideal high-speed bearing for demanding applications.
Superior Load Capacity: With a dynamic load rating of 7762 lbf and a static load rating of 6525 lbf, this bearing is capable of handling significant combined loads.
Sealed & Lubricated for Life: As a sealed bearing pre-lubricated with grease, it is protected from contamination and is maintenance-free within its specified temperature range of -30°C to 110°C.
S7017 CEGA/P4A Bearing Typical Application Areas
The S7017 CEGA/P4A is ideally suited for high-precision, high-speed machinery, including:
- Machine Tool Spindles (CNC machining centers, grinding spindles)
- High-Frequency Motors
- Precision Robotics and Automation Equipment
- Aerospace & Defense Instrumentation
