7013 ACEGA/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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Materials
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7013 ACEGA/P4A Bearing Product Overview & Core Advantages
The 7013 ACEGA/P4A is a single row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class, this bearing delivers superior running accuracy and is preloaded to Extra Light (Class A) specifications, ensuring minimal axial and radial play for enhanced system stability. Its 25° contact angle is optimized to support significant combined loads, handling both radial and axial forces simultaneously. The universal matchable (SU) design allows for flexible mounting arrangements in pairs to accommodate complex load requirements, making it an ideal choice for high-speed spindles and other demanding machinery.
7013 ACEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 7013 | Basic bearing series and size designation | Indicates a metric series bearing with 65mm bore, 100mm OD, and 18mm width |
| A | 30° contact angle (standard for this series) | Provides optimal load distribution for combined radial and axial loads |
| CEGA | Internal design and clearance specification | Denotes optimized internal geometry for high-precision applications |
| P4A | Tolerance class equivalent to ABEC 7 | Ensures extremely tight dimensional and running accuracy tolerances |
7013 ACEGA/P4A Bearing Structural Features & Performance Benefits
The 7013 ACEGA/P4A incorporates several advanced structural features that deliver exceptional performance:
- High-Precision Construction: Manufactured to P4A tolerance class with bore and outside diameter tolerances of -0.004mm to 0, ensuring perfect fit and minimal runout in precision applications.
- Optimized Contact Angle: The 25° contact angle provides an ideal balance between radial and axial load capacity, making it suitable for applications with significant combined loads.
- Advanced Cage Design: The phenolic resin cage offers excellent strength-to-weight ratio, reduced friction, and superior performance at high speeds, contributing to the bearing's limiting speed of 31,000 rpm.
- Premium Material Selection: Both rings and balls are manufactured from chrome steel, providing high hardness, wear resistance, and dimensional stability across the operating temperature range of -30°C to 110°C.
- Preload Optimization: The Extra Light (Class A) preload ensures minimal deflection under load while maintaining smooth operation and extended service life.
7013 ACEGA/P4A Bearing Typical Application Areas
The 7013 ACEGA/P4A is engineered for high-performance applications where precision, speed, and reliability are critical:
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and precision milling applications
- Precision Instrumentation: Measuring equipment, optical instruments, and laboratory apparatus
- High-Speed Motors: Servo motors, spindle motors, and other high-RPM electric motors
- Aerospace Components: Gyroscopes, navigation systems, and aircraft control surface actuators
- Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging systems
- Robotics: Precision robotic joints, CNC automation, and industrial manipulators
