71914 CDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
71914 CDGA/HCP4A
Basic Information
System of measurement
Metric
Weight
0.28 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
70 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
100 mm
Outside diameter tolerance
-0.004mm to 0
Width
16 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
24
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
7762 lbf
Radial static load rating
7650 lbf
Limiting speed
24 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
3
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:
$ 234.03
/ each
In Stock
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71914 CDGA/HCP4A Bearing Product Overview & Core Advantages
The 71914 CDGA/HCP4A is a single-row angular contact ball bearing designed for applications demanding exceptional precision and high-speed performance. Engineered to a P4A super-precision tolerance class, it offers superior running accuracy and rotational stability. Its core advantages include the ability to accommodate combined loads (radial and axial) efficiently, facilitated by its 15° contact angle. The combination of a ceramic ball material and a phenolic cage enables outstanding high-speed capabilities and reduced rotational inertia. This bearing is universally matchable (SU), allowing for flexible mounting in preloaded sets to achieve optimal system rigidity.
71914 CDGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71914 | Basic bearing series and size designation. |
| C | Specifies a 15° contact angle. |
| DG | Indicates the bearing is a Universal Matchable (SU) bearing, designed to be mounted in pairs or sets. |
| A | Denotes an Extra light preload (Class A). |
| HCP4A | Signifies the tolerance class P4A (super precision) and specific internal clearance/geometry. |
71914 CDGA/HCP4A Bearing Structural Features & Performance Benefits
- High-Speed & Rigidity: The phenolic resin cage offers excellent strength-to-weight ratio and low friction, contributing to a high limiting speed of 24,000 rpm. The ceramic (silicon nitride) balls reduce centrifugal forces, lower operating temperature, and increase bearing life, especially at high speeds.
- Precision & Load Capacity: Manufactured to P4A super-precision standards with tight dimensional tolerances on bore, outside diameter, and width. This ensures minimal runout and vibration, making it ideal for precision spindles. The 15° contact angle is optimized for handling significant axial loads in one direction alongside radial loads.
- Universal Matching & System Performance: As a Universal Matchable (SU) bearing, multiple bearings can be paired to support complex load conditions. This design allows for simplified mounting and the creation of a highly rigid bearing system when preloaded.
- Material Durability: The rings are made from high-carbon chrome steel for high load capacity and durability, while the ceramic balls provide superior wear resistance and electrical insulation properties.
71914 CDGA/HCP4A Bearing Typical Application Areas
This bearing is engineered for high-performance applications where speed, precision, and reliability are critical. Key industries and machinery include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- High-Frequency Motors and Spindles: PCB drilling spindles and dental handpieces.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and navigation equipment.
- Medical Equipment: Centrifuges and advanced imaging devices.
