7001 CDGA/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7001 CDGA/P4A Bearing Product Overview & Core Advantages
The 7001 CDGA/P4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and speed capability. Manufactured to P4A tolerance class, this bearing delivers superior running accuracy and dimensional stability. Its 15° contact angle is optimized for handling combined loads, efficiently supporting significant axial loads in one direction alongside radial loads. The phenolic cage and universal matching (SU) designation enable high-speed operation and simplified bearing arrangement design in preloaded configurations.
Model Code Breakdown
- 7001: Basic designation indicating a metric angular contact ball bearing with 12mm bore, 28mm OD, and 8mm width.
- C: Denotes a 15° contact angle, optimized for high-speed performance and moderate axial load capacity.
- DG: Signifies the bearing is Universal Matchable (SU). Two bearings can be paired in a duplex set (DF/DB/DT) for specific preload and rigidity requirements.
- A: Indicates Extra light preload (Class A) for minimal friction and optimal high-speed performance.
- P4A: Specifies the tolerance class, exceeding ABEC 7 precision with enhanced running accuracy and dimensional control.
7001 CDGA/P4A Bearing Structural Features & Performance Benefits
High-Precision Design: Manufactured to P4A super-precision standards, the 7001 CDGA/P4A ensures minimal runout and vibration, which is critical for high-speed spindles and precision instruments.
Optimized for High Speeds: The lightweight phenolic resin cage reduces centrifugal forces, enabling a limiting speed of 100,000 rpm with proper lubrication. The 15° contact angle further enhances high-speed capability while maintaining axial load capacity.
Superior Rigidity & Load Capacity: The chrome steel construction and precision grinding provide high rigidity. With a dynamic load rating of 1010 lbf and static load rating of 428 lbf, it reliably handles combined radial and axial loads.
Universal Matching Capability: Designated as Universal Matchable (SU), these bearings can be universally paired without selective matching, simplifying inventory and assembly for preloaded duplex arrangements.
7001 CDGA/P4A Bearing Typical Application Areas
- High-Speed Machine Tool Spindles
- Precision Grinding Spindles
- High-Frequency Machining Centers
- Dental Handpiece Motors
- Laboratory and Medical Instrumentation
- Semiconductor Manufacturing Equipment
