S71910 CE/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71910 CE/HCP4ADGA
Basic Information
System of measurement
Metric
Weight
0.21 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
50 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
72 mm
Outside diameter tolerance
-0.004mm to 0
Width
24 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°C to 110 °C
Radial dynamic load rating
4680 lbf
Radial static load rating
3825 lbf
Limiting speed
34 X 1000 rpm
Lubrication
Grease
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 186.36
/ each
In Stock
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S71910 CE/HCP4ADGA Bearing Product Overview & Core Advantages
The S71910 CE/HCP4ADGA is a super-precision angular contact ball bearing engineered for the most demanding high-speed and high-rigidity applications. As a universal matchable (SU) bearing supplied in a set of two, it is designed to accommodate combined loads (radial and axial) simultaneously. Its construction with ceramic balls and a P4A tolerance class ensures exceptional rotational accuracy, low heat generation, and extended service life, making it ideal for high-reliability spindles and precision machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| S | Stainless Steel (Note: Chrome Steel is specified, but 'S' often denotes a stainless series; confirm with manufacturer data) |
| 71910 | Bearing series and size designation (50mm bore, 72mm OD, 24mm width) |
| CE | High-precision specification, often related to internal clearance and running accuracy |
| HC | Hybrid Ceramic (Silicon Nitride balls) |
| P4A | Tolerance class superior to ABEC 7, ensuring extremely tight dimensional and running accuracy |
| DGA | Contact angle of 15° and universal matchable (SU) design, allowing any two bearings to be mounted together without selective assembly |
S71910 CE/HCP4ADGA Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The use of ceramic balls significantly reduces centrifugal forces, lowers operating temperature, and enables higher limiting speeds (34,000 rpm). This construction also provides superior resistance to wear and electrical arcing.
- High Rigidity & Load Capacity: The angular contact design and universal matching of two bearings create a highly rigid system capable of supporting significant combined radial and axial loads.
- Super-Precision Performance: The P4A tolerance class and phenolic cage ensure minimal vibration and extreme running accuracy, which is critical for applications requiring high surface finish and positional precision.
- Optimized for High-Speed: The combination of ceramic balls, a lightweight phenolic cage, and a 15° contact angle is specifically engineered to minimize friction and power loss at ultra-high rotational speeds.
- Pre-Lubrication: Filled with high-performance grease suitable for a temperature range of -30°C to 110°C, providing long-term, maintenance-free operation.
S71910 CE/HCP4ADGA Bearing Typical Application Areas
This super-precision bearing is ideally suited for high-performance applications where speed, accuracy, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: High-accuracy robotic arms and joints.
- Aerospace & Defense: Gyroscopes, radar systems, and auxiliary power units (APUs).
- Medical Equipment: Dental handpieces, high-speed centrifuges, and imaging devices.
- Semiconductor Manufacturing: Wafer handling robots and precision stages.
