S7011 CE/HCP4ADBA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7011 CE/HCP4ADBA
Basic Information
System of measurement
Metric
Weight
0.75 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
7.938 mm
Ball quantity
24
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
6210 lbf
Radial static load rating
5512 lbf
Limiting speed
46 X 1000 rpm
Lubrication
Grease
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
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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S7011 CE/HCP4ADBA Bearing Product Overview & Core Advantages
The S7011 CE/HCP4ADBA is a super-precision duplex angular contact ball bearing designed for the most demanding applications. This matched pair in a back-to-back (DB) arrangement delivers exceptional system rigidity and running accuracy. Featuring ceramic balls and a P4A tolerance class, it is engineered for high-speed operation, superior stiffness, and the ability to handle combined loads (radial and axial). Its sealed and pre-lubricated design ensures long-term, maintenance-free performance in critical machinery.
S7011 CE/HCP4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7011 | Basic bearing designation, indicating a 55mm bore, 90mm OD, and 36mm width. |
| CE | Indicates the use of Hybrid Ceramic balls (Silicon Nitride). |
| HC | Refers to the Phenolic Resin (Polyamide) cage material. |
| P4A | Specifies the super-precision tolerance class, exceeding ABEC 7/ISO P4 standards. |
| DB | Denotes the Duplex Back-to-Back matched arrangement of the two bearings. |
| A | Specifies an Extra Light Preload on the matched set. |
S7011 CE/HCP4ADBA Bearing Structural Features & Performance Benefits
- Exceptional Rigidity & Load Capacity: The duplex back-to-back (DB) configuration creates a wide, rigid support system that effectively resists overturning moments and can accommodate combined radial and axial loads from both directions.
- Superior High-Speed Performance: The combination of lightweight hybrid ceramic balls and a phenolic resin cage reduces centrifugal forces and friction, enabling a high limiting speed of 46,000 rpm. The 15° contact angle is optimized for high-speed applications.
- Enhanced Durability & Longevity: Ceramic balls offer higher hardness, lower thermal expansion, and electrical insulation properties, leading to reduced wear and a longer service life, especially in challenging environments.
- Maintenance-Free Operation: As a sealed and pre-lubricated unit, the bearing is protected from contamination and is lubricated for life, eliminating the need for re-lubrication and reducing maintenance costs.
S7011 CE/HCP4ADBA Bearing Typical Application Areas
This super-precision angular contact ball bearing is ideally suited for high-performance applications where maximum speed, rigidity, and accuracy are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy rotary units.
- Aerospace & Defense: Gyroscopes, radar systems, and navigation equipment.
- Medical Equipment: High-speed dental handpieces and imaging device rotors.
- Semiconductor Manufacturing: Wafer handling robots and precision stages.
