7000 CD/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7000 CD/HCP4A
Basic Information
System of measurement
Metric
Weight
0.017 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
10 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
26 mm
Outside diameter tolerance
-0.005mm to 0
Width
8 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
4.762 mm
Ball quantity
9
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
922 lbf
Radial static load rating
374 lbf
Limiting speed
140 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 64.21
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7000 CD/HCP4A Bearing Product Overview & Core Advantages
The 7000 CD/HCP4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and speed capability. Positioned in the P4 (ABEC-7) tolerance class, it delivers superior running precision. A key advantage is its ability to accommodate combined loads, efficiently handling both radial and substantial axial loads in one direction. The combination of a ceramic ball material and a phenolic cage enables outstanding high-speed performance and thermal stability, making it an ideal solution for demanding, high-RPM machinery.
7000 CD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CD | Indicates a high-precision, duplex bearing configuration with a specific contact angle and internal design optimized for high rigidity. |
| HC | Signifies the use of Hybrid Ceramic balls (Silicon Nitride), which reduces friction, heat generation, and allows for higher limiting speeds. |
| P4A | Denotes the tolerance class P4 (ABEC-7) with additional geometric specifications ("A") for enhanced running accuracy and performance consistency. |
7000 CD/HCP4A Bearing Structural Features & Performance Benefits
- High-Speed Capability: The hybrid ceramic balls are lighter and harder than steel, significantly reducing centrifugal forces and friction. Combined with the lightweight, self-lubricating phenolic resin cage, this design achieves an exceptional limiting speed of 140,000 rpm.
- High Rigidity & Load Capacity: The 15° contact angle is optimized to support significant axial loads alongside radial loads. The P4 precision grade ensures tight internal clearances and geometry, resulting in high system rigidity and precise shaft positioning.
- Thermal & Operational Stability: Ceramic balls have a lower coefficient of thermal expansion than steel, maintaining preload and performance stability across the operating temperature range of -30°C to 110°C. The phenolic cage performs reliably in high-speed, high-temperature environments.
- Preload Availability: The bearing is supplied with a preload, which eliminates internal clearance, increases system stiffness, and improves rotational accuracy for critical spindle applications.
7000 CD/HCP4A Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for applications where high speed, accuracy, and rigidity are paramount. Key industries and equipment include:
- High-Frequency Spindles for PCB drilling and milling
- Precision Machine Tool Spindles
- High-Speed Robotic Drives and actuators
- Dental and Medical Handpiece motors
- Aerospace Auxiliary Power Units (APUs) and instrumentation
