S7019 ACD/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7019 ACD/HCP4A
Basic Information
System of measurement
Metric
Weight
1.01 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
10 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:
$ 1247.03
/ each
In Stock
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S7019 ACD/HCP4A Bearing Product Overview & Core Advantages
The S7019 ACD/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and reliability. This single-row bearing is designed to accommodate high combined loads, including significant radial and one-direction axial loads. Its P4 (ABEC-7) tolerance class ensures ultra-precise rotational accuracy, while the ceramic ball construction and phenolic cage contribute to superior high-speed performance and reduced weight. Preloaded and pre-lubricated, it offers immediate, maintenance-free operation in high-rigidity systems.
S7019 ACD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
The model number S7019 ACD/HCP4A provides detailed technical specifications through its suffixes:
- S7019: Basic model number indicating a 95mm bore, 145mm OD, and 24mm width.
- ACD: Signifies Angular Contact design with a 25° contact angle and a specific internal geometry optimized for high axial load capacity.
- HCP4A: A compound suffix where HC denotes the Hybrid Ceramic construction (steel rings with ceramic balls), and P4A indicates the P4 tolerance class with an A-group internal clearance or specific preload for optimal performance.
S7019 ACD/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and silicon nitride (Si3N4) ceramic balls significantly reduces friction and operating temperature, enabling higher limiting speeds. Ceramic balls are also electrically insulating, non-magnetic, and offer superior durability.
- High Rigidity & Load Capacity: The 25° contact angle and robust internal design provide high resistance to deformation under load, ensuring system stability. It supports a dynamic load rating of 17,122 lbf and a static load rating of 17,212 lbf.
- Superior High-Speed Performance: The lightweight phenolic resin cage and low-friction ceramic balls work in tandem to achieve an exceptional limiting speed of 10,000 rpm. This makes it ideal for high-spindle applications.
- Precision & Reliability: Manufactured to P4 (ABEC-7) precision standards, this bearing ensures minimal runout and vibration, which is critical for the accuracy of the final application.
- Pre-Lubricated & Sealed: The bearing comes pre-lubricated and is sealed for life, protecting against contamination and providing maintenance-free operation within its specified temperature range of -30°C to 110°C.
S7019 ACD/HCP4A Bearing Typical Application Areas
The S7019 ACD/HCP4A is ideally suited for high-performance machinery where precision, speed, and reliability are paramount. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and auxiliary power units (APUs).
- High-Frequency Motors and Spindles: Electric vehicle motors, CNC router spindles, and dental handpieces.
- Advanced Medical Equipment: CT scanner gantries and high-speed centrifuges.
