S7010 ACDGB/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7010 ACDGB/HCP4A
Basic Information
System of measurement
Metric
Weight
0.22 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
50 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
80 mm
Outside diameter tolerance
-0.004mm to 0
Width
16 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
18
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
6322 lbf
Radial static load rating
5220 lbf
Limiting speed
41 X 1000 rpm
Lubrication
Grease
Matched arrangement
Single
Number of bearings in matched set
3
Universal matching bearing
Universal Matchable (SU)
Preload
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
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In Stock
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S7010 ACDGB/HCP4A Bearing Product Overview & Core Advantages
The S7010 ACDGB/HCP4A is a high-precision double row angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and rigidity. Positioned as a universal matchable bearing, it is designed to handle combined loads—significant radial loads and bidirectional axial loads—simultaneously. Its compact design, featuring a 16mm width, makes it ideal for space-constrained, high-speed assemblies. The use of ceramic balls and a P4A super-precision tolerance class ensures superior performance, low heat generation, and extended service life in high-rotation environments.
S7010 ACDGB/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7010 | Basic bearing designation, indicating a metric series double row angular contact ball bearing with a 50mm bore. |
| AC | Angular Contact design with a 25° contact angle for optimal axial load capacity. |
| DGB | Duplex arrangement, Back-to-Back (DB). This configuration provides high moment rigidity. |
| HC | Hybrid Ceramic, indicating the balls are made of ceramic (Silicon Nitride), reducing weight and friction for higher speeds. |
| P4A | A super-precision tolerance class exceeding ABEC 7, ensuring extremely tight running accuracy for spindles. |
S7010 ACDGB/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design and back-to-back (DGB) duplex arrangement provide exceptional resistance to moment loads and high system rigidity, enabling stable performance under combined radial and axial loads.
- Superior High-Speed Performance: The combination of hybrid ceramic balls and a lightweight phenolic resin cage significantly reduces centrifugal forces and operating temperatures, allowing for a high limiting speed of 41,000 rpm.
- Precision & Longevity: Manufactured to P4A tolerance class with a light preload (Class B), this bearing delivers ultra-precise rotation and minimal runout. The sealed construction retains grease and protects against contamination, ensuring consistent performance.
- Universal Matchability (SU): Bearings are universally matchable, allowing for flexible mounting in sets (e.g., 3 bearings as specified) without the need for selective assembly, simplifying installation and maintenance.
S7010 ACDGB/HCP4A Bearing Typical Application Areas
This bearing is ideally suited for high-performance machinery where precision, speed, and rigidity are paramount. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and rotary units requiring high positional accuracy.
- High-Frequency Motors & Spindles: Motors for PCB drilling and dental handpieces.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other precision instrumentation.
