S7011 CD/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7011 CD/HCP4ADGA
Basic Information
System of measurement
Metric
Weight
0.64 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
55 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
90 mm
Outside diameter tolerance
-0.004mm to 0
Width
36 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
18
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
14332 lbf
Radial static load rating
14738 lbf
Limiting speed
34 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
Price available upon request.
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S7011 CD/HCP4ADGA Bearing Product Overview & Core Advantages
The S7011 CD/HCP4ADGA is a high-precision double row angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and reliability. Its design enables it to simultaneously withstand combined loads—significant radial loads and bidirectional axial loads. Featuring a compact cross-section, ceramic balls, and a P4A super-precision tolerance class, it delivers superior high-speed performance, high rigidity, and extended service life in critical machinery.
S7011 CD/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| CD | 15° contact angle and optimized internal design | Optimized for high-speed operation and axial load capacity. |
| HC | Hybrid Ceramic (Silicon Nitride balls) | Reduced weight, lower friction, higher limiting speed, and non-conductive properties. |
| P4A | Super Precision Tolerance Class (ABEC 7 / ISO P4) | Guarantees extremely tight running accuracy for high-precision spindles. |
| DGA | Sealed on both sides with high-performance grease | Provides effective contamination exclusion and is lubricated for life, enabling maintenance-free operation. |
S7011 CD/HCP4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row angular contact design provides a rigid support system, effectively handling combined radial and axial loads from both directions. The Extra light (Class A) preload ensures precise shaft positioning and minimal runout.
- Superior High-Speed Performance: The combination of lightweight phenolic resin cage and low-friction ceramic balls significantly reduces centrifugal forces and operating temperature, enabling a high limiting speed of 34,000 rpm.
- Universal Matchable (SU) Design: Bearings can be universally paired in a set of two to create a pre-loaded arrangement, simplifying mounting and ensuring optimal performance and stiffness.
- Maintenance-Free & Long Life: The integral seals (DGA) protect against contaminants, while the factory-applied grease provides reliable lubrication across a wide temperature range from -30°C to 110°C.
S7011 CD/HCP4ADGA Bearing Typical Application Areas
This precision bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- High-Frequency Motors & Spindles: Where extreme rotational accuracy and speed are critical.
- Precision Instrumentation: Medical devices, semiconductor manufacturing equipment, and coordinate measuring machines.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other critical rotating assemblies.
