707 ACD/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
707 ACD/HCP4A
Basic Information
System of measurement
Metric
Weight
0.007 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
7 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
19 mm
Outside diameter tolerance
-0.005mm to 0
Width
6 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
3.572 mm
Ball quantity
8
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
544 lbf
Radial static load rating
214 lbf
Limiting speed
170 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:
$ 101.68
/ each
In Stock
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707 ACD/HCP4A Bearing Product Overview & Core Advantages
The 707 ACD/HCP4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and speed capability. This bearing is distinguished by its P4 (ABEC-7) tolerance class, ceramic balls, and availability with preload, making it ideal for applications demanding high rigidity, minimal runout, and superior high-speed performance. Its design is optimized to support significant combined loads (radial and axial) simultaneously, providing reliable operation in demanding environments.
707 ACD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 707 | Basic bearing series and size designation. |
| ACD | Angular Contact Design with a 25° contact angle for optimal axial load capacity. |
| H | Indicates the use of Hybrid Ceramic components (ceramic balls with steel rings). |
| C | Refers to the Phenolic Resin Cage material, ideal for high-speed operation. |
| P4A | Denotes the P4 (ABEC-7) precision tolerance class, ensuring ultra-high running accuracy. |
707 ACD/HCP4A Bearing Structural Features & Performance Benefits
- High-Speed Performance: The combination of ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic cage significantly increases the limiting speed to 170,000 rpm, reducing friction and heat generation.
- High Rigidity and Precision: Manufactured to P4 tolerance standards with the option for preload, this bearing provides exceptional stiffness and minimal axial/radial play, crucial for precise positioning systems.
- Superior Load Capacity: The 25° contact angle is optimized to handle substantial combined radial and axial loads efficiently, offering versatile performance.
- Extended Service Life: Hybrid ceramic construction offers superior resistance to wear and a longer operational life, especially in high-speed or marginally lubricated conditions.
- Temperature Resilience: Capable of operating within a temperature range of -30°C to 110°C, suitable for various industrial environments.
707 ACD/HCP4A Bearing Typical Application Areas
This high-precision angular contact bearing is ideally suited for:
- High-Speed Spindles in CNC machining centers and precision grinding machines
- Turbochargers and auxiliary high-speed rotors
- Precision Instrumentation and medical device rotors
- High-Frequency Motors and servo drives
- Aerospace auxiliary systems and instrumentation
