7013 CB/HCP4A
Hybrid Ceramic Super Precision Bearings
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7013 CB/HCP4A Bearing Product Overview & Core Advantages
The 7013 CB/HCP4A is a high-precision angular contact ball bearing engineered for applications demanding exceptional accuracy and performance. This single-row bearing is distinguished by its P4 (ABEC-7) tolerance class and 15° contact angle, optimized to handle significant combined loads—simultaneous radial and axial loads. A key feature is its preload availability, which ensures high system rigidity, minimizes deflection, and enhances rotational accuracy. The use of ceramic balls and a phenolic cage contributes to its high-speed capabilities, low friction, and extended service life, making it an ideal choice for high-reliability, precision machinery.
7013 CB/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7013 | Standard bearing series designation, indicating a metric bore diameter of 65 mm, outside diameter of 100 mm, and width of 18 mm. |
| CB | Specific internal design and clearance specification for preload adjustment. |
| HC | Denotes Hybrid Ceramic construction, featuring steel rings and ceramic balls. |
| P4 | Indicates a super-precision tolerance class (equivalent to ABEC-7), ensuring extremely tight dimensional and running accuracy. |
| A | Specifies a 15° contact angle. |
7013 CB/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The P4 tolerance class and availability of preload provide exceptional running accuracy and system stiffness, critical for applications requiring minimal runout and vibration.
- Superior High-Speed Performance: The combination of a lightweight phenolic resin cage and low-density ceramic balls reduces centrifugal forces, enabling a high limiting speed of 34,000 rpm and lower operating temperatures.
- Enhanced Load Capacity: The 15° contact angle is optimized to efficiently support combined loads, with a dynamic load rating of 3510 lbf and a static load rating of 2902 lbf.
- Extended Service Life: Ceramic balls offer superior wear resistance, lower thermal expansion, and electrical insulation properties compared to standard steel balls, significantly increasing bearing longevity in demanding conditions.
- Pre-Lubricated for Immediate Use: The bearing comes lubricated and is suitable for a temperature range of -30°C to 110°C.
7013 CB/HCP4A Bearing Typical Application Areas
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Robotics and Automation Arms
- High-Frequency Motors and Spindle Drives
- Aerospace Actuators and Control Systems
- Medical Equipment (Dental handpieces, imaging scanners)
