S7004 CD/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7004 CD/HCP4ADGA
Basic Information
System of measurement
Metric
Weight
0.12 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
20 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
42 mm
Outside diameter tolerance
-0.004mm to 0
Width
24 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
6.35 mm
Ball quantity
12
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
3150 lbf
Radial static load rating
1912 lbf
Limiting speed
100 X 1000 rpm
Lubrication
Grease
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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S7004 CD/HCP4ADGA Bearing Product Overview & Core Advantages
The S7004 CD/HCP4ADGA is a precision double row angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. Engineered with a 15° contact angle and an Extra Light (Class A) preload, this bearing is optimized to handle combined radial and bidirectional axial loads simultaneously. Its compact design, featuring ceramic balls and a phenolic cage, delivers superior high-speed performance and high rigidity, making it an ideal solution for high-precision spindle systems and other critical machinery.
S7004 CD/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| CD | Universal Matchable (SU) bearing pair with specific internal clearance and preload | Ensures optimal performance when mounted as a duplex set; simplifies installation and matching. |
| HCP4A | High-performance grease lubrication and P4A tolerance class | Provides long-lasting lubrication for high-speed operation and guarantees ultra-precision running accuracy. |
S7004 CD/HCP4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row angular contact design provides superior stiffness, enabling the bearing to support significant combined loads (radial and bidirectional axial) with minimal deflection.
- Exceptional High-Speed Performance: The combination of lightweight ceramic balls and a phenolic resin cage reduces centrifugal forces and friction, allowing for a high limiting speed of 100,000 rpm.
- Precision & Longevity: Manufactured to P4A tolerance class with an Extra Light preload, this bearing ensures ultra-precise rotational accuracy and smooth operation. The sealed design and factory-applied high-performance grease offer maintenance-free operation and protection against contamination.
- Thermal Stability: The specified temperature range of -30°C to 110°C ensures reliable performance in varied operating environments.
S7004 CD/HCP4ADGA Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications where precision, speed, and rigidity are critical. Key industries and equipment include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles.
- Precision Instrumentation: Measuring devices, optical scanners.
- High-Speed Motors: Spindles for PCB drilling, dental handpieces.
- Robotics: High-accuracy joints and actuators.
