S7020 CDGB/P4A
Sealed Super Precision Angular Contact Ball Bearings
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S7020 CDGB/P4A Bearing Product Overview & Core Advantages
The S7020 CDGB/P4A is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and rigidity. As a single bearing with a Universal Matchable (SU) designation, it is engineered to be paired with other bearings to form a preloaded duplex set, delivering superior system performance. Its P4A tolerance class ensures extremely tight dimensional control for high-precision rotational applications. The bearing is pre-lubricated with grease and features integral sealing, making it suitable for high-speed operation up to 10,000 rpm while offering reliable, long-term performance.
S7020 CDGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7020 | Basic bearing series and size designation (100mm bore, 150mm OD). |
| C | 15° contact angle, optimized for combined loads. |
| D | Indicates a duplex bearing configuration (this single bearing is designed for universal matching). |
| GB | Specifies a Light preload (Class B) for enhanced rigidity and reduced axial/radial play. |
| P4A | Denotes a super-precision tolerance class with very tight running accuracy. |
S7020 CDGB/P4A Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The angular contact design and light preload work in unison to provide high system rigidity, enabling the bearing to effectively support combined radial and axial loads. With a dynamic load rating of 18,720 lbf, it offers robust performance in demanding conditions.
Optimized High-Speed Performance: The phenolic cage is lightweight and strong, contributing to lower inertia and smoother operation at the high limiting speed of 10,000 rpm. The standard grease lubrication is formulated for stable performance within the specified speed and temperature range.
Precision Engineering: Manufactured to P4A tolerance class with narrow bore, OD, and width tolerances, this bearing guarantees minimal runout and precise shaft positioning, which is critical for precision machinery.
S7020 CDGB/P4A Bearing Typical Application Areas
The S7020 CDGB/P4A is ideally suited for high-performance applications where precision and speed are paramount. Key industries and equipment include:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Robotic Drives and Rotary Axes
