7010 CEGB/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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7010 CEGB/P4A Bearing Product Overview & Core Advantages
The 7010 CEGB/P4A is a single-row angular contact ball bearing designed for applications demanding ultra-high precision and exceptional rotational accuracy. Manufactured to P4A tolerance class, this bearing is engineered to handle significant combined loads (radial and axial) simultaneously, with its 15° contact angle optimized for high axial load capacity. Its universal matching (SU) capability allows for flexible mounting in preloaded sets, making it ideal for high-rigidity and high-speed spindle arrangements.
7010 CEGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7010 | Standard bearing series number, indicating a 50 mm bore and 80 mm outside diameter. |
| CEGB | Internal design code specifying enhanced internal geometry and a Light preload (Class B) for optimal stiffness and running accuracy. |
| P4A | Indicates an ultra-precision tolerance class with extremely tight dimensional and running accuracy tolerances, superior to standard ABEC 7. |
7010 CEGB/P4A Bearing Structural Features & Performance Benefits
Precision Engineering & High Rigidity: The bearing's P4A tolerance class ensures minimal runout and vibration, which is critical for applications like machine tool spindles. The specified Light preload (Class B) eliminates internal clearance, resulting in significantly increased system rigidity and precise shaft positioning under load.
Optimized Load Capacity & High-Speed Performance: With a 15° contact angle, the 7010 CEGB/P4A efficiently handles combined radial and axial loads. The phenolic resin cage is lightweight and robust, contributing to smooth operation and enabling a high limiting speed of 41,000 rpm. The high dynamic load rating ensures long service life under demanding conditions.
Universal Matching & Thermal Stability: Designated as Universal Matchable (SU), these bearings can be mounted in any combination (back-to-back, face-to-face, or tandem) to achieve the required preload and stiffness without selective assembly. The phenolic cage also offers excellent performance across the specified temperature range.
7010 CEGB/P4A Bearing Typical Application Areas
- High-Speed Machine Tool Spindles (milling, grinding, drilling)
- Precision Grinding Spindles
- High-Frequency Motors
- Aerospace Control Systems
- Medical and Dental Equipment Spindles
