71906 ACDTP/P4B
71900 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
71906 ACDTP/P4B
Basic Information
System of measurement
Metric
Weight
0.048 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
30 mm
Bore diameter tolerance
-0.005mm to 0
Outside diameter
47 mm
Outside diameter tolerance
-0.006mm to 0
Width
9 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
4.762 mm
Ball quantity
20
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
1521 lbf
Radial static load rating
968 lbf
Limiting speed
30 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:
$ 235.77
/ each
In Stock
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71906 ACDTP/P4B Bearing Product Overview & Core Advantages
The 71906 ACDTP/P4B is a single-row angular contact ball bearing engineered for applications demanding high precision and superior rotational accuracy. Positioned in the P4 (ABEC-7) tolerance class, it is designed to accommodate primarily axial loads in one direction, as well as combined radial and axial loads. Its compact design, featuring a 9mm width, makes it ideal for space-constrained, high-performance assemblies. The bearing is pre-lubricated and comes with a specified preload, ensuring immediate operational readiness, high rigidity, and minimal runout for exceptional performance in demanding conditions.
71906 ACDTP/P4B Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71906 | Basic bearing series and size designation (30mm bore, 47mm OD). |
| AC | Angular Contact design with a 25° contact angle. |
| D | High Preload designation for maximum rigidity. |
| TP | Phenolic (Thermoset) Cage for reduced weight, high-speed capability, and good operational characteristics. |
| /P4B | P4 Precision Tolerance Class (equivalent to ABEC-7), with specific internal running accuracy and dimensional tolerances. |
71906 ACDTP/P4B Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The combination of a 25° contact angle and a specified preload ensures high system stiffness, minimizes axial and radial deflection, and guarantees precise shaft positioning, which is critical for high-precision machinery.
- Optimized Load Capacity: As an angular contact bearing, it is designed to efficiently handle combined loads, particularly heavy axial loads in one direction, making it suitable for applications with significant thrust forces.
- Superior High-Speed Performance: The lightweight phenolic cage (TP) reduces centrifugal forces, lowers friction, and enables a high limiting speed of 30,000 rpm, making it an excellent high-speed bearing solution.
- Ready-to-Install and Reliable: The bearing is supplied lubricated and is open on both sides, allowing for custom lubrication regimes if required. The use of high-grade chrome steel for rings and balls ensures long service life and consistent performance within a temperature range of -30°C to 110°C.
71906 ACDTP/P4B Bearing Typical Application Areas
This precision bearing is ideally suited for applications requiring high speed, rigidity, and accuracy, such as:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Robotic Arm Joints and Drives
- Medical and Dental Equipment Spindles
- Aerospace Actuators and Control Systems
