S71907 CD/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71907 CD/HCP4A
Basic Information
System of measurement
Metric
Weight
0.068 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
35 mm
Bore diameter tolerance
-0.006mm to 0
Outside diameter
55 mm
Outside diameter tolerance
-0.007mm to 0
Width
10 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
5.556 mm
Ball quantity
21
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
2194 lbf
Radial static load rating
1474 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:
$ 334.75
/ each
In Stock
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S71907 CD/HCP4A Bearing Product Overview & Core Advantages
The S71907 CD/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional speed, rigidity, and accuracy. As a single-row bearing with a 15° contact angle, it is optimized to support combined loads—significant radial loads and axial loads in one direction. Its core advantages stem from a ceramic ball and phenolic cage construction, enabling superior high-speed performance and reduced rotational mass. Manufactured to P4 (ABEC-7) tolerance class, it guarantees precise running accuracy and high operational reliability in compact installations.
S71907 CD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Benefit |
|---|---|---|
| 71907 | Standard designation for a single-row angular contact ball bearing with a 35mm bore, 55mm OD, and 10mm width. | Defines the core bearing dimensions and type. |
| C | Specifies a 15° contact angle. | Optimized for high-speed applications with moderate axial loads. |
| D | Indicates the bearing is supplied with a preload. | Enhances system rigidity and rotational accuracy, reducing deflection under load. |
| HC | Hybrid Ceramic: Signifies the use of ceramic balls with steel rings. | Provides higher speed capability, reduced friction, and longer service life. |
| P4 | Denotes a tolerance class equivalent to ABEC-7. | Ensures ultra-precise dimensions and run-out for high-accuracy applications. |
S71907 CD/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces centrifugal forces, lowers operating temperature, and allows for a higher limiting speed (32,000 rpm). This also provides electrical insulation and improved resistance to wear.
- Phenolic Resin Cage: The lightweight and robust phenolic cage offers excellent dimensional stability and low friction at high speeds, contributing to smooth operation and extended service life.
- High Rigidity & Preload: The single-row design with an applied preload ensures high system stiffness, minimizing axial and radial play for superior positional accuracy in spindles and precision axes.
- Superior Load Capacity: With a dynamic load rating of 2194 lbf and a static load rating of 1474 lbf, this precision bearing reliably handles the combined loads encountered in high-performance machinery.
- Factory Lubrication: The bearing comes pre-lubricated with a high-performance grease suitable for its specified temperature range of -30°C to 110°C, ensuring immediate readiness for installation and operation.
S71907 CD/HCP4A Bearing Typical Application Areas
This bearing is ideally suited for high-speed, high-precision applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling and routing spindles.
- High-Frequency Motors: Spindles for robotics and automation.
- Medical Equipment: High-speed handpieces and dental drills.
- Aerospace Instrumentation: Gyroscopes and navigation systems.
