S7019 ACD/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7019 ACD/P4A
Basic Information
System of measurement
Metric
Weight
1.22 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
95 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
145 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
21
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
17122 lbf
Radial static load rating
17212 lbf
Limiting speed
8 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1247.36
/ each
In Stock
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S7019 ACD/P4A Bearing Product Overview & Core Advantages
The S7019 ACD/P4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional rotational accuracy and rigidity. This single-row bearing is distinguished by its 25° contact angle and P4 (ABEC-7) tolerance class, making it ideal for managing combined loads where high axial and radial forces are present simultaneously. Its preloaded configuration ensures minimal axial play and superior system stiffness right from installation, contributing to enhanced positional accuracy and reduced vibration in high-speed operations.
S7019 ACD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Implication |
|---|---|---|
| ACD | 25° Contact Angle, High Precision | Optimized for high axial load capacity and rigid support. |
| P4A | P4 (ABEC-7) Tolerance Class, Preloaded | Guarantees extreme dimensional and running accuracy with zero axial play for superior performance. |
S7019 ACD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: The 25° contact angle and preload work in tandem to deliver maximum system stiffness, critical for applications requiring high positional accuracy and resistance to deflection under load.
- Superior Load Capacity: Engineered to handle significant combined radial and axial loads efficiently. The optimized internal geometry and use of high-grade chrome steel for rings and balls ensure high dynamic (17,122 lbf) and static (17,212 lbf) load ratings.
- Optimized High-Speed Performance: The lightweight phenolic cage minimizes centrifugal forces, reduces friction, and contributes to a high limiting speed of 8,000 rpm. The bearing is pre-lubricated for immediate operation and consistent performance within its specified speed range.
- Sealed & Ready-to-Use: The sealed design protects the bearing's internals from contaminants and retains lubrication, offering a maintenance-free, long-service-life solution for clean to moderately contaminated environments.
S7019 ACD/P4A Bearing Typical Application Areas
This precision bearing is ideally suited for high-performance machinery where accuracy, speed, and rigidity are paramount. Key applications include:
- Machine Tool Spindles for milling, grinding, and turning centers
- High-speed Precision Spindles in PCB drilling and routing
- Rotary tables and indexing heads
- High-performance Pumps and Compressors
- Advanced Robotic Joints and Actuators
