7001 ACD/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7001 ACD/HCP4A
Basic Information
System of measurement
Metric
Weight
0.018 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
12 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
28 mm
Outside diameter tolerance
-0.005mm to 0
Width
8 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
4.762 mm
Ball quantity
10
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
981 lbf
Radial static load rating
412 lbf
Limiting speed
110 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:
$ 67.92
/ each
In Stock
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7001 ACD/HCP4A Bearing Product Overview & Core Advantages
The 7001 ACD/HCP4A is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and performance. This single-row bearing features a 25° contact angle and is supplied with a preload, enabling it to handle combined radial and axial loads simultaneously with high rigidity. Manufactured to P4 (ABEC-7) tolerance class, it guarantees superior running accuracy. The use of ceramic balls and a phenolic cage contributes to its high-speed capabilities, low friction, and extended service life, making it ideal for high-speed spindle applications.
7001 ACD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| AC | Angular Contact design with a 25° contact angle. |
| D | Signifies a high-precision design. |
| HC | Hybrid Ceramic, indicating the balls are made of ceramic material. |
| P4A | Denotes the P4 (ABEC-7) tolerance class and that the bearing is supplied with a preload. |
7001 ACD/HCP4A Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: Manufactured to P4 tolerance standards and supplied with a preload, this bearing provides exceptional running accuracy and stiffness, minimizing deflection under load for superior machining quality.
- High-Speed Performance: The combination of ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic resin cage allows for a very high limiting speed of 110,000 rpm, reducing operational friction and heat generation.
- Extended Service Life & Reliability: Hybrid ceramic construction offers superior resistance to wear and is less susceptible to lubrication failure. The phenolic cage is durable and performs well at high speeds.
- Optimized Load Capacity: The 25° contact angle is optimized to efficiently support significant combined radial and axial loads.
7001 ACD/HCP4A Bearing Typical Application Areas
This bearing is engineered for the most demanding high-speed and high-precision machinery, including:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Medical Equipment (Dental handpieces, surgical tools)
- High-Frequency Motors and Spindles
- Aerospace Instrumentation
- Semiconductor Manufacturing Equipment
