7011 ACE/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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7011 ACE/P4A Bearing Product Overview & Core Advantages
The 7011 ACE/P4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. Designed to accommodate primarily axial loads in one direction and combined loads, this bearing features a 25° contact angle and is supplied with a P4 (ABEC-7) precision class tolerance. Its phenolic resin cage and pre-lubrication contribute to superior high-speed performance, making it an ideal component for demanding, high-accuracy machinery where reliability and precision are paramount.
7011 ACE/P4A Bearing Model Code Explained, Specifications & Naming Convention
- 7011: Basic model number denoting a metric series angular contact ball bearing with a 55mm bore, 90mm OD, and 18mm width.
- ACE: A specific manufacturer designation for internal bearing geometry, preload, and clearance characteristics.
- P4A: Indicates the tolerance class P4 (ABEC-7), signifying extremely tight dimensional and running accuracy for high-precision applications.
7011 ACE/P4A Bearing Structural Features & Performance Benefits
High Rigidity and Precision: Manufactured to P4 tolerance standards, the bearing ensures minimal runout and vibration, providing stable and precise shaft guidance essential for high-performance spindles.
Optimized High-Speed Capability: The lightweight phenolic cage reduces centrifugal forces, while the 25° contact angle offers an excellent balance between axial load capacity and speed, achieving a limiting speed of 30,000 rpm.
Superior Load Capacity: The single-row design with a generous contact angle is engineered to handle significant axial loads in one direction and combined (radial and axial) loads efficiently.
Pre-Lubricated for Immediate Use: The bearing is factory-lubricated, ensuring optimal performance from initial startup and reducing maintenance requirements.
7011 ACE/P4A Bearing Typical Application Areas
The 7011 ACE/P4A is ideally suited for high-speed, high-precision machinery, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Equipment
- Robotic Drives and Actuators
- Medical and Dental Equipment Spindles
