7020 ACD/P4AQBTB
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7020 ACD/P4AQBTB
Basic Information
System of measurement
Metric
Weight
5.05 kg
Tolerance class
P4A
Seal type
Open
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 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Quadruplex Tandem Back-to-Back (QBT)
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
7020 ACD/P4AQBTB Bearing Product Overview & Core Advantages
The 7020 ACD/P4AQBTB is a precision quadruplex matched angular contact ball bearing designed for demanding applications requiring exceptional rigidity and load capacity. This P4A tolerance class bearing features a Quadruplex Tandem Back-to-Back (QBT) arrangement, enabling it to handle significant combined loads (radial and axial) in both directions simultaneously. Its optimized design, including a 25° contact angle and phenolic cage, makes it an ideal choice for high-precision, high-rigidity systems where operational accuracy is paramount.
7020 ACD/P4AQBTB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with a 25° contact angle. |
| P4A | High precision tolerance class exceeding ABEC 7/ISO P4 standards, ensuring minimal runout and superior rotational accuracy. |
| QBTB | Denotes a Quadruplex (4 bearings) matched set in a Tandem Back-to-Back (QBT) arrangement. This configuration provides maximum rigidity and moment load capacity. |
7020 ACD/P4AQBTB Bearing Structural Features & Performance Benefits
- Exceptional Rigidity and Load Capacity: The Quadruplex Tandem Back-to-Back (QBT) arrangement of four bearings creates an extremely stiff bearing system capable of withstanding heavy combined radial and axial loads from multiple directions, making it suitable for applications with high moment loads.
- High-Precision Performance: Manufactured to a P4A tolerance class with a Light Preload (Class B), this bearing ensures minimal vibration, low noise, and precise shaft positioning, which is critical for maintaining accuracy in high-speed rotations.
- Optimized for High-Speed Operation: The lightweight phenolic resin cage reduces centrifugal forces, contributing to a high limiting speed of 16,000 rpm. The standard factory lubrication further supports reliable high-speed performance.
- Robust Construction: Made from high-grade chrome steel for both rings and balls, the bearing offers excellent durability and fatigue resistance under heavy loads.
7020 ACD/P4AQBTB Bearing Typical Application Areas
This bearing is engineered for high-performance machinery where precision, rigidity, and reliability are non-negotiable. Key applications include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Gearboxes and High-Frequency Motor Spindles.
- Industrial Pumps and Compressors requiring high axial and radial stiffness.
- Robotic Arm Joints and Automated Positioning Systems.
