S7011 ACD/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7011 ACD/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
25 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
18
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
13612 lbf
Radial static load rating
13950 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.
Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
REQUEST A QUOTE
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S7011 ACD/HCP4ADGA Bearing Product Overview & Core Advantages
The S7011 ACD/HCP4ADGA is a high-precision double row angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and reliability. Featuring a universal matchable (SU) design, this bearing can accommodate combined radial and bidirectional axial loads simultaneously. Its compact design, utilizing ceramic balls and a P4A super-precision tolerance class, makes it ideal for high-speed operation and scenarios demanding maximum rigidity and rotational accuracy.
S7011 ACD/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
The model number S7011 ACD/HCP4ADGA is decoded as follows:
- S70: Indicates a series of high-precision angular contact ball bearings.
- 11: Specifies the bore diameter code (55 mm).
- ACD: Signifies a 25° contact angle and a universal matchable (SU) design, allowing bearings to be mounted in pairs without specific orientation requirements.
- HCP4A: Denotes the use of Hybrid Ceramic balls (silicon nitride) and a P4A super-precision tolerance class, exceeding standard ABEC 7/ISO P4 specifications for enhanced running accuracy.
- DGA: Specifies the cage material as Phenolic (fiberglass reinforced), which is lightweight and contributes to high-speed capability and reduced friction.
S7011 ACD/HCP4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design provides superior radial and axial rigidity, effectively handling combined loads and moment loads. The 25° contact angle is optimized for sustaining significant axial loads in both directions.
- Superior High-Speed Performance: The combination of lightweight phenolic cage (DGA) and low-density, hard ceramic balls significantly reduces centrifugal forces, enabling a high limiting speed of 34,000 rpm. This hybrid construction also minimizes heat generation at high velocities.
- Extended Service Life & Reliability: Ceramic balls are non-corrosive, electrically insulating, and have a lower coefficient of thermal expansion than steel, leading to more stable preload and longer service life, especially in challenging environments. The bearing is pre-lubricated with grease suitable for a wide temperature range from -30°C to 110°C.
- Exceptional Precision: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration, which is critical for applications requiring ultra-high rotational accuracy.
S7011 ACD/HCP4ADGA Bearing Typical Application Areas
This bearing is ideally suited for high-performance machinery and precision equipment, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling and routing machines.
- High-Frequency Motors and Servo Drives.
- Medical Equipment: Dental handpieces and laboratory centrifuges.
- Aerospace Actuators and Instrumentation.
