S71909 CDTP/P4B
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71909 CDTP/P4B
Basic Information
System of measurement
Metric
Weight
0.13 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
19 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 424.21
/ each
In Stock
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S71909 CDTP/P4B Bearing Product Overview & Core Advantages
The S71909 CDTP/P4B is a super-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high-speed performance. As a single-row bearing, it is engineered to accommodate high combined loads, primarily thrust loads in one direction, while also supporting significant radial loads. Its key advantages stem from a P4 (ABEC-7) tolerance class, a phenolic resin cage for reduced friction, and factory-applied high-performance grease, making it an ideal choice for high-rigidity, high-reliability spindles and precision machinery.
S71909 CDTP/P4B Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7 | Series designation for high-precision angular contact ball bearings. |
| 1909 | Bore diameter code (45 mm) and series dimension. |
| C | Specifies a 15° contact angle, optimized for high-speed operation and high thrust capacity. |
| D | Indicates a high preload level, providing maximum rigidity and precise shaft positioning. |
| T | Denotes a phenolic resin cage, which offers excellent strength-to-weight ratio and is suitable for high speeds. |
| P4B | Specifies the tolerance class P4 (ABEC-7), ensuring ultra-precise running accuracy and minimal runout. |
S71909 CDTP/P4B Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The combination of a 15° contact angle and a high preload (D) delivers exceptional system stiffness, minimizing deflection under load for superior machining accuracy and surface finish.
- Superior Load Capacity: Engineered to handle significant combined loads, with a high dynamic load rating of 2925 lbf, making it robust for demanding applications.
- Optimized High-Speed Performance: The lightweight phenolic cage (T) reduces centrifugal forces, while the precision-ground chrome steel balls and raceways work in concert to achieve a high limiting speed of 19,000 rpm.
- Ready-to-Install and Reliable: The bearing is factory-lubricated and sealed, ensuring optimal performance from the start and a long, maintenance-free service life within its specified temperature range.
S71909 CDTP/P4B Bearing Typical Application Areas
This precision bearing is ideally suited for high-performance applications where speed, accuracy, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Drives: High-frequency motors and spindle drives.
- Medical Equipment: Dental handpieces and laboratory centrifuges.
- Aerospace Systems: Gyroscopes and navigation instruments.
