S71919 CDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71919 CDGA/HCP4A
Basic Information
System of measurement
Metric
Weight
0.5 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
95 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
130 mm
Outside diameter tolerance
-0.004mm to 0
Width
18 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
28
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
11115 lbf
Radial static load rating
12375 lbf
Limiting speed
21 X 1000 rpm
Lubrication
Grease
Matched arrangement
Single
Number of bearings in matched set
4
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
In Stock
Price available upon request.
Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
REQUEST A QUOTE
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S71919 CDGA/HCP4A Bearing Product Overview & Core Advantages
The S71919 CDGA/HCP4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This metric, sealed bearing features a single universal matchable (SU) design with an extra light preload (Class A), making it ideal for high-speed spindles and precision machinery. Its core advantages include the ability to handle combined radial and axial loads simultaneously, superior running accuracy from its P4A tolerance class, and reliable operation facilitated by its sealed construction and ceramic balls.
S71919 CDGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S | Bearing series designation |
| 719 | Precision angular contact bearing design |
| 19 | Bore diameter code (95 mm) |
| CD | 15° contact angle |
| G | Sealed construction |
| A | Extra light preload (Class A) |
| HCP4A | High-precision tolerance class (P4A) with phenolic cage and ceramic balls |
S71919 CDGA/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: Manufactured to P4A tolerance class with extremely tight dimensional tolerances on the bore, outside diameter, and width, ensuring superior running accuracy and system rigidity.
- High-Speed Capability: The combination of a lightweight phenolic cage, ceramic balls, and grease lubrication enables a high limiting speed of 21,000 rpm, reducing centrifugal forces and operational temperatures.
- Enhanced Durability & Long Life: Ceramic ball material offers lower density, higher stiffness, and superior wear resistance compared to steel, leading to extended bearing service life, especially in high-speed applications.
- Reliable Sealed & Lubricated Design: The integral seals protect against contamination, and the factory-applied grease provides consistent lubrication within the specified temperature range of -30°C to 110°C, supporting maintenance-free operation.
- Universal Matching: As a Universal Matchable (SU) bearing, it can be mounted in various preload configurations (back-to-back, face-to-face, or tandem) with other bearings from the same manufactured lot, providing design flexibility for precise axial rigidity control.
S71919 CDGA/HCP4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and CNC milling machines.
- Precision Robotics: High-accuracy robotic arms and joints requiring minimal runout and high rigidity.
- Medical Equipment: Spindles for dental handpieces and high-speed medical drills.
- Aerospace & Defense: Gyroscopes, radar systems, and other precision instrumentation.
- High-Frequency Motors: Spindles for electric motors and generators operating at very high rotational speeds.
