S7011 CDGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Main Dimensions
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S7011 CDGA/P4A Bearing Product Overview & Core Advantages
The S7011 CDGA/P4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. As a single bearing from a universally matchable (SU) set, it offers outstanding performance in compact envelope designs. Its primary advantages include the ability to accommodate combined loads (radial and axial), superior running accuracy due to its P4A tolerance class, and reliable operation at high speeds facilitated by its phenolic cage and grease lubrication. This bearing is engineered for high reliability in precision machinery.
S7011 CDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
- S7011: Basic model number denoting a 55mm bore diameter and specific dimensions.
- C: Represents a 15° contact angle, optimized for high-speed applications and axial load capacity.
- DG: Indicates a Universal Matchable (SU) bearing. "DG" typically signifies a specific universal pairing configuration.
- A: Denotes an Extra light preload (Class A), which minimizes friction and heat generation for superior high-speed performance.
- P4A: Specifies the tolerance class, indicating very high precision levels for runout and dimensional accuracy.
- Sealed / Grease Lubricated: The bearing is supplied sealed and pre-lubricated with grease, ensuring long-term, maintenance-free operation.
S7011 CDGA/P4A Bearing Structural Features & Performance Benefits
High Precision and Rigidity: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration, providing a stable and precise rotational axis. The 15° contact angle and robust construction contribute to high system rigidity.
Superior Load Capacity: The angular contact design is engineered to handle significant combined radial and axial loads simultaneously, making it suitable for complex loading conditions.
Optimized High-Speed Performance: The combination of a lightweight phenolic resin cage, extra light preload (Class A), and effective grease lubrication allows the bearing to achieve a high limiting speed of 46,000 rpm.
Ready-to-Use and Long-Lasting: As a sealed and pre-lubricated unit, the bearing is protected from contamination and is maintenance-free, offering a long service life within its specified temperature range of -30°C to 110°C.
S7011 CDGA/P4A Bearing Typical Application Areas
The S7011 CDGA/P4A is ideally suited for high-performance applications where precision, speed, and reliability are critical. Key industries and equipment include:
- Machine Tool Spindles
- High-Frequency Motors and Spindles
- Precision Grinding Equipment
- Robotic Drives and Arms
- Aerospace Actuation Systems
