S7020 ACD/P4ADBB
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7020 ACD/P4ADBB
Basic Information
System of measurement
Metric
Weight
2.55 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
48 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
28575 lbf
Radial static load rating
36000 lbf
Limiting speed
16.25 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
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/P4ADBB Bearing Product Overview & Core Advantages
The S7020 ACD/P4ADBB is a precision duplex angular contact ball bearing designed for demanding applications requiring exceptional rigidity and running accuracy. This matched back-to-back (DB) arrangement is preloaded to Light / Class B specifications, providing superior system stability and resistance to moment loads. Its P4A tolerance class ensures ultra-precise rotational performance, making it ideal for high-speed spindles and other precision machinery where high rigidity and minimal runout are critical.
S7020 ACD/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| ACD | Angular Contact, Duplex arrangement | Indicates a pre-matched pair of angular contact bearings. |
| P4A | High Precision Tolerance Class | Guarantees extremely tight dimensional and running accuracy for superior performance. |
| DB | Back-to-Back Mounting | Provides high rigidity and can withstand overturning moments. |
S7020 ACD/P4ADBB Bearing Structural Features & Performance Benefits
- High Rigidity & System Stability: The duplex back-to-back (DB) configuration and factory-applied light preload create an exceptionally stiff bearing system that effectively resists complex combined loads (radial and axial), minimizing deflection under operation.
- Superior Load Capacity: With a 25° contact angle and robust construction, this bearing is engineered to handle significant combined radial and axial loads simultaneously, as evidenced by its high dynamic (28,575 lbf) and static (36,000 lbf) load ratings.
- Optimized High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, while the grease lubrication and precision-ground components contribute to a high limiting speed of 16,250 rpm, making it a true high-speed bearing.
- Sealed & Pre-Lubricated: The sealed design effectively excludes contaminants and retains lubricant. Pre-greased from the factory, it offers reliable, long-term performance with minimal maintenance requirements.
S7020 ACD/P4ADBB Bearing Typical Application Areas
This bearing is ideally suited for high-precision, high-speed applications, including:
- Machine Tool Spindles: For CNC machining centers, grinders, and lathes requiring high rigidity and accuracy.
- High-Frequency Motors & Spindles: Where precise control and high rotational speeds are paramount.
- Precision Gearboxes & Drive Systems: To support shafts subjected to significant radial and axial forces.
- Industrial Pumps and Compressors: For reliable performance in demanding fluid handling equipment.
