7013 ACD/HCP4ALDT
Hybrid Ceramic Super Precision Bearings
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7013 ACD/HCP4ALDT Bearing Product Overview & Core Advantages
The 7013 ACD/HCP4ALDT is a high-precision duplex tandem angular contact ball bearing designed for demanding applications requiring exceptional accuracy and rigidity. This matched set bearing features a P4A super-precision tolerance class and is preloaded for immediate, high-stability performance. Its core advantage lies in its ability to handle significant combined loads (radial and axial) in a single direction with maximum stiffness, making it ideal for high-speed spindles and precision machinery where minimal deflection is critical. The use of ceramic balls reduces centrifugal forces, contributing to lower operating temperatures and higher limiting speeds.
7013 ACD/HCP4ALDT Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7013 | Standard bearing series number, indicating a 65mm bore, 100mm OD, and 36mm width. |
| AC | Angular Contact design with a 25° contact angle. |
| D | Duplex arrangement. |
| HC | Hybrid Ceramic, indicating the balls are made of ceramic material. |
| P4A | Super Precision Tolerance Class, exceeding ABEC 7/ISO P4 standards for runout and dimensional accuracy. |
| L | Light Preload. |
| DT | Duplex Tandem mounting. Two bearings are matched and mounted in tandem to handle heavy axial loads in one direction. |
7013 ACD/HCP4ALDT Bearing Structural Features & Performance Benefits
Superior Rigidity and Load Capacity: The duplex tandem (DT) arrangement pairs two bearings to create an exceptionally rigid unit capable of supporting very high axial loads in one direction and substantial radial loads. The light preload (L) eliminates internal clearance, ensuring precise shaft positioning and zero-play operation under light loads.
Enhanced High-Speed Performance: The hybrid ceramic balls (HC) are significantly lighter than steel balls, reducing centrifugal force and allowing for a higher limiting speed of 31,000 rpm. The phenolic resin cage offers excellent strength-to-weight ratio and smooth operation at high velocities.
Precision and Longevity: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration for superior machining finish and accuracy. The open seal type allows for optimal lubrication management in controlled environments, maximizing bearing life under specified temperature ranges.
7013 ACD/HCP4ALDT Bearing Typical Application Areas
This bearing is engineered for high-performance applications where precision, speed, and rigidity are non-negotiable. Key industries and machinery include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, semiconductor manufacturing equipment.
- High-Frequency Motors: Spindles for routers and engravers.
- Aerospace Test Equipment: Precision positioning systems and gyroscopes.
