S71909 CDTP/HCP4B
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71909 CDTP/HCP4B
Basic Information
System of measurement
Metric
Weight
0.12 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
45 mm
Bore diameter tolerance
-0.006mm to 0
Outside diameter
68 mm
Outside diameter tolerance
-0.007mm to 0
Width
12 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
6.35 mm
Ball quantity
23
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
2925 lbf
Radial static load rating
2138 lbf
Limiting speed
24 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:
$ 423.55
/ each
In Stock
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S71909 CDTP/HCP4B Bearing Product Overview & Core Advantages
The S71909 CDTP/HCP4B is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This sealed bearing features a single, preloaded arrangement and is manufactured to a P4 (ABEC-7) tolerance class, ensuring minimal runout and superior rotational precision. Its core advantages include the ability to handle combined loads efficiently, high-speed capability enabled by its phenolic cage and ceramic balls, and long-term reliability due to its sealed and pre-lubricated design, making it ideal for high-rigidity, high-reliability installations.
S71909 CDTP/HCP4B Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CD | High contact angle (15°) and optimized internal geometry for high rigidity and speed. |
| T | Phenolic (synthetic resin) cage material, contributing to low weight, high strength, and excellent high-speed performance. |
| P | Indicates the bearing is preloaded, eliminating internal clearance for enhanced stiffness and precise shaft positioning. |
| HC | Refers to the use of hybrid ceramic balls (silicon nitride), which reduce friction, heat generation, and wear, enabling higher limiting speeds. |
| P4B | Specifies the tolerance class P4 (ABEC-7), denoting very high precision in dimensions and running accuracy. |
S71909 CDTP/HCP4B Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The preloaded single arrangement and 15° contact angle provide high system stiffness and precise rotational accuracy, critical for applications with minimal deflection requirements.
- Superior Load Capacity: Engineered to support significant combined radial and axial loads simultaneously, thanks to the angular contact design and robust construction.
- Exceptional High-Speed Performance: The combination of a lightweight phenolic cage and low-friction hybrid ceramic balls significantly reduces centrifugal forces and operating temperature, allowing for a high limiting speed of 24,000 rpm.
- Long-Term Reliability & Low Maintenance: The integrated seals protect against contamination, and the factory-applied lubrication is suitable for the specified temperature range, ensuring consistent performance and extended service life with minimal maintenance.
S71909 CDTP/HCP4B Bearing Typical Application Areas
This precision bearing is ideally suited for high-performance machinery and systems, including:
- Machine Tool Spindles
- High-Speed Machining Centers
- Precision Grinding Spindles
- High-Frequency Motors
- Medical and Laboratory Equipment
- Aerospace Instrumentation
