S7020 ACDTP/HCP4B
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7020 ACDTP/HCP4B
Basic Information
System of measurement
Metric
Weight
1.06 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
100 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
150 mm
Outside diameter tolerance
-0.009mm to 0
Width
24 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° to 110 °C
Radial dynamic load rating
17842 lbf
Radial static load rating
18000 lbf
Limiting speed
9.5 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1389.92
/ each
In Stock
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S7020 ACDTP/HCP4B Bearing Product Overview & Core Advantages
The S7020 ACDTP/HCP4B is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional performance. This sealed bearing features a single, preloaded arrangement and is manufactured to a P4 (ABEC-7) tolerance class, ensuring superior running accuracy. Its design is optimized to handle combined loads with a 25° contact angle, providing excellent rigidity and high-speed capability. The use of ceramic balls and a phenolic cage contributes to reduced friction, lower operating temperatures, and an extended service life, making it ideal for high-reliability systems.
S7020 ACDTP/HCP4B Bearing Model Code Explained, Specifications & Naming Convention
The model number S7020 ACDTP/HCP4B provides detailed technical specifications through its suffixes. Below is a breakdown of its components:
- S7020: Basic model number indicating a 100mm bore, 150mm OD, and 24mm width.
- AC: Angular Contact design.
- DTP: Indicates a specific preload level and internal design for high rigidity.
- HC: Signifies the use of Hybrid Ceramic balls (Ceramic balls with steel rings).
- P4: Denotes the tolerance class (ABEC-7), signifying very high precision.
- B: Often refers to a 40° contact angle, but in this specific configuration, it works with the stated 25° for optimal performance. The bearing is lubricated and sealed for life.
S7020 ACDTP/HCP4B Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The single, preloaded arrangement and P4 tolerance eliminate internal clearance, providing maximum shaft support and minimizing deflection under load for exceptional positional accuracy.
- Enhanced Speed and Temperature Performance: The combination of ceramic balls and a phenolic cage reduces centrifugal forces and friction, enabling a high limiting speed of 9,500 rpm and stable operation across a wide temperature range (-30° to 110 °C).
- Long Service Life and Reliability: Hybrid construction offers superior resistance to wear and degradation. The integral seals retain lubrication and exclude contaminants, ensuring consistent performance and making the bearing effectively maintenance-free.
- High Load Capacity: With a dynamic load rating of 17,842 lbf and a static load rating of 18,000 lbf, this bearing is capable of sustaining significant combined radial and axial loads.
S7020 ACDTP/HCP4B Bearing Typical Application Areas
This bearing is specifically designed for high-performance applications where precision, speed, and reliability are critical. Key industries and equipment include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and CNC lathes.
- Precision Robotics: Arm joints and rotary actuators requiring high rigidity and accuracy.
- High-Speed Motors and Drives: Spindles for electric motors, pumps, and compressors.
- Aerospace and Defense Systems: Gyroscopes, radar platforms, and other critical navigation and control systems.
- Medical Equipment: High-speed dental handpieces and imaging device rotors.
