S71910 CE/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S71910 CE/HCP4A
Basic Information
System of measurement
Metric
Weight
0.11 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
50 mm
Bore diameter tolerance
-0.006mm to 0
Outside diameter
72 mm
Outside diameter tolerance
-0.007mm to 0
Width
12 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
7.144 mm
Ball quantity
21
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
2858 lbf
Radial static load rating
1912 lbf
Limiting speed
32 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:
$ 485.75
/ each
In Stock
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S71910 CE/HCP4A Bearing Product Overview & Core Advantages
The S71910 CE/HCP4A is a single-row angular contact ball bearing engineered for applications demanding high precision and high-speed operation. Positioned in the P4 (ABEC-7) tolerance class, it offers exceptional dimensional accuracy and running precision. A key feature is its ceramic ball material (Silicon Nitride), which significantly reduces centrifugal forces, lowers operating temperatures, and enables superior performance at the limiting speed of 32,000 rpm. This bearing is preloaded and pre-lubricated, ensuring immediate high rigidity and smooth operation right from installation, making it ideal for high-reliability spindles and precision machinery.
S71910 CE/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| 71910 | Standard bearing series designation (10mm bore x 72mm OD x 12mm width). | Defines the core bearing dimensions. |
| CE | Hybrid bearing designation (Ceramic balls, Steel rings). | Enables high-speed performance, reduced heat generation, and longer service life. |
| HC | High-Grade Phenolic Resin Cage. | Provides low weight, high strength, and excellent guidance at high speeds. |
| P4A | High-Precision Tolerance Class (ABEC-7 equivalent) with specific running accuracy requirements. | Guarantees minimal runout and vibration for ultra-precise applications. |
S71910 CE/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic-Steel Construction: The combination of ceramic balls and chrome steel rings drastically reduces friction and wear, allowing for higher limiting speeds and increased stiffness compared to all-steel bearings.
- 15° Contact Angle & Preload: The optimized contact angle is designed to handle combined radial and axial loads simultaneously. The bearing is supplied with a light preload, eliminating internal clearance and providing immediate high rigidity and precise rotational accuracy.
- High-Speed Phenolic Cage (HC): The lightweight and robust phenolic resin cage ensures stable ball guidance and low centrifugal forces, which is critical for maintaining integrity and performance at extreme rotational speeds.
- Precision & Sealed Lubrication: Manufactured to P4 tolerance class, this bearing ensures smooth, quiet, and vibration-free operation. It comes pre-lubricated with a high-speed grease suitable for its specified temperature range (-30° to 110 °C), offering long-term, maintenance-free operation.
S71910 CE/HCP4A Bearing Typical Application Areas
This high-precision, high-speed angular contact ball bearing is ideally suited for demanding applications such as:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, semiconductor manufacturing equipment.
- High-Frequency Motors: Spindles for routers and high-speed electric motors.
- Medical Equipment: Dental handpieces and laboratory centrifuges.
- Aerospace & Instrumentation: Gyroscopes, navigation systems, and other precision instruments.
