71905 CDTP/P4B
71900 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
71905 CDTP/P4B
Basic Information
System of measurement
Metric
Weight
0.042 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
25 mm
Bore diameter tolerance
-0.005mm to 0
Outside diameter
42 mm
Outside diameter tolerance
-0.006mm to 0
Width
9 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
4.762 mm
Ball quantity
18
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
1521 lbf
Radial static load rating
900 lbf
Limiting speed
38 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:
$ 177.08
/ each
In Stock
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71905 CDTP/P4B Bearing Product Overview & Core Advantages
The 71905 CDTP/P4B is a single-row angular contact ball bearing designed for applications requiring exceptional precision and high-speed performance. Engineered with a 15° contact angle and P4 (ABEC-7) tolerance class, this bearing excels at handling combined radial and axial loads in one direction. Its compact design, featuring a 9 mm width, makes it ideal for space-constrained, high-precision machinery. The bearing is pre-lubricated and available with a preload, ensuring immediate operational readiness, high running accuracy, and superior rigidity.
71905 CDTP/P4B Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CDT | Indicates a specific internal design with a 15° contact angle and optimized internal geometry for high performance. |
| P | Signifies that the bearing is supplied with a preload for enhanced rigidity and reduced axial/radial play. |
| P4B | Denotes a high-precision tolerance class equivalent to ABEC-7, ensuring extremely tight dimensional and running accuracy. |
71905 CDTP/P4B Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The single-row angular contact design, combined with a phenolic resin cage and P4 precision, provides exceptional dimensional stability and running accuracy, which is critical for high-speed spindles.
- Superior Load Capacity: With a 15° contact angle, this bearing is engineered to support significant combined loads, effectively managing both radial forces and one-directional axial thrust.
- Optimized High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces, while the high-grade chrome steel construction and precision grinding contribute to a high limiting speed of 38,000 rpm.
- Ready-to-Install Convenience: The bearing is pre-lubricated, facilitating immediate startup and reliable operation within its specified temperature range of -30°C to 110°C.
71905 CDTP/P4B Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for demanding applications such as:
- Machine Tool Spindles
- High-Speed Grinding & Milling Heads
- Precision Robotics and Automation Equipment
- High-Frequency Motors and Spindles
- Medical and Dental Handpiece Drives
