S71919 CB/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71919 CB/HCP4A
Basic Information
System of measurement
Metric
Weight
0.61 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
95 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
130 mm
Outside diameter tolerance
-0.009mm to 0
Width
18 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
7.144 mm
Ball quantity
38
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
4095 lbf
Radial static load rating
4185 lbf
Limiting speed
16 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:
$ 1423.64
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S71919 CB/HCP4A Bearing Product Overview & Core Advantages
The S71919 CB/HCP4A is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. Engineered to the P4 (ABEC-7) tolerance class, this bearing is optimized to handle combined loads, supporting significant radial loads and axial loads in one direction. Its compact design, featuring a ceramic ball and phenolic cage, enables superior high-speed performance and operational stability, making it an ideal solution for high-rigidity, precision spindle systems.
S71919 CB/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
The model number S71919 CB/HCP4A is decoded as follows:
- S: High-precision bearing series
- 7: Angular contact ball bearing
- 19: Bore diameter code (95 mm)
- 19: Dimension series (width and outer diameter profile)
- CB: Specific contact angle (15°) and internal clearance for preload when used in a matched arrangement
- HC: Hybrid Ceramic (Ceramic balls with steel rings)
- P4: Tolerance class P4 (ABEC-7), denoting very high running accuracy
- A: Modified internal design for optimized performance
S71919 CB/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces friction and wear, enabling higher limiting speeds (16,000 rpm) and extended service life, especially in demanding environments.
- Phenolic Cage: This lightweight and robust cage material contributes to lower centrifugal forces, excellent acceleration characteristics, and smooth operation at high speeds.
- Precision & Rigidity: Manufactured to P4 tolerance with a 15° contact angle, the bearing provides high running accuracy and system rigidity, which is critical for minimizing deflection under combined loads.
- Sealed & Lubricated: The sealed design with factory-applied lubrication protects against contamination and ensures consistent performance, reducing maintenance needs within its specified temperature range of -30° to 110 °C.
S71919 CB/HCP4A Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications where speed, precision, and reliability are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles.
- Precision Instrumentation: Medical devices, coordinate measuring machines.
- High-Speed Motors: Spindles for PCB drilling, dental handpieces.
- Aerospace & Defense Systems: Gyroscopes, navigation systems.
