S7020 ACD/P4AQBCB
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7020 ACD/P4AQBCB
Basic Information
System of measurement
Metric
Weight
5.09 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
100 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
150 mm
Outside diameter tolerance
-0.004mm to 0
Width
96 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
15.875 mm
Ball quantity
22
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
46800 lbf
Radial static load rating
72000 lbf
Limiting speed
16.25 X 1000 rpm
Lubrication
Grease
Matched arrangement
Quadruplex Back-to-Back (QBC)
Number of bearings in matched set
4
Universal matching bearing
No (Standard)
Preload
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
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
S7020 ACD/P4AQBCB Bearing Product Overview & Core Advantages
The S7020 ACD/P4AQBCB is a high-precision quadruplex matched bearing set designed for demanding applications requiring exceptional rigidity and accuracy. This metric angular contact ball bearing features a back-to-back (QBC) arrangement of four bearings, providing superior stability and the ability to handle combined loads (radial and axial) from multiple directions. Manufactured to a P4A tolerance class, it ensures high running accuracy and is preloaded for immediate, precise operation. Its compact design and high rigidity make it an ideal choice for high-performance spindles and other precision machinery.
S7020 ACD/P4AQBCB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| ACD | Angular Contact, 25° Contact Angle | Optimized for handling significant axial loads in combination with radial loads. |
| P4A | High Precision Tolerance Class | Guarantees extremely tight dimensional and running accuracy for superior performance. |
| QBC | Quadruplex Back-to-Back Matched Set | Provides maximum rigidity and moment load capacity in a compact assembly. |
S7020 ACD/P4AQBCB Bearing Structural Features & Performance Benefits
- Exceptional Rigidity and Load Capacity: The quadruplex back-to-back arrangement creates a highly rigid system capable of withstanding heavy combined loads and moment loads, making it suitable for applications with complex force scenarios.
- High-Speed Capability: The phenolic resin cage is lightweight and robust, contributing to smooth operation and a high limiting speed of 16,250 rpm, which is essential for high-speed spindle applications.
- Precision Performance: Manufactured to P4A super-precision standards with a 25° contact angle and a light preload (Class B), this bearing set delivers low noise, low vibration, and high rotational accuracy right out of the box.
- Sealed and Lubricated for Life: As a sealed bearing pre-lubricated with grease, it is protected from contamination and is designed for long-term, maintenance-free operation within its specified temperature range.
S7020 ACD/P4AQBCB Bearing Typical Application Areas
This precision bearing set is engineered for high-performance machinery where accuracy, speed, and rigidity are paramount. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: Used in PCB drilling, precision grinding, and other high-accuracy machining operations.
- High-Frequency Motors: Spindles for applications requiring rapid acceleration and deceleration.
- Industrial Robotics: Critical joints and arm assemblies requiring high rigidity and precision.
