S71919 CE/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71919 CE/HCP4A
Basic Information
System of measurement
Metric
Weight
0.49 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
130 mm
Outside diameter tolerance
-0.009mm to 0
Width
18 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
25
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
7020 lbf
Radial static load rating
5738 lbf
Limiting speed
16 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:
$ 1423.85
/ each
In Stock
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S71919 CE/HCP4A Bearing Product Overview & Core Advantages
The S71919 CE/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. As a single-row bearing, it is designed to accommodate high combined loads, primarily thrust loads in one direction, with a 15° contact angle. Its core advantages stem from its P4 (ABEC-7) tolerance class, ceramic ball construction, and preload availability, making it an ideal solution for high-speed spindles and other precision machinery where rigidity, low friction, and operational reliability are paramount.
S71919 CE/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| S71919 | Denotes the bearing series and size (95mm bore, 130mm OD, 18mm width). |
| CE | Indicates the use of ceramic (Silicon Nitride) balls, which reduce weight, lower friction, and enable higher speeds and operating temperatures. |
| HC | Refers to a phenolic (Polyamide) cage, which is lightweight and suitable for high-speed operation. |
| P4A | Specifies the P4 (ABEC-7) tolerance class, ensuring extremely high running accuracy and dimensional precision. |
S71919 CE/HCP4A Bearing Structural Features & Performance Benefits
- High-Speed Performance: The combination of ceramic balls and a lightweight phenolic cage (HC) significantly reduces centrifugal forces and friction, enabling a high limiting speed of 16,000 rpm. This design minimizes heat generation and power loss.
- Enhanced Rigidity & Load Capacity: The 15° contact angle and availability of preload allow for a rigid bearing setup, effectively handling combined radial and axial loads. The high-grade chrome steel rings provide excellent durability under dynamic and static loads.
- Superior Precision: Manufactured to P4 tolerance, this bearing guarantees minimal runout and vibration, which is critical for the accuracy of precision machinery.
- Optimized Lubrication: The bearing comes pre-lubricated, ensuring immediate and reliable operation from startup within its specified temperature range.
S71919 CE/HCP4A Bearing Typical Application Areas
This bearing is specifically designed for high-performance applications, including:
- Machine Tool Spindles
- High-Speed Machining Centers
- Precision Grinding Spindles
- High-Frequency Motors
- Aerospace Instrumentation
