S71906 ACDTP/P4B
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71906 ACDTP/P4B
Basic Information
System of measurement
Metric
Weight
0.049 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
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:
$ 283.86
/ each
In Stock
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S71906 ACDTP/P4B Bearing Product Overview & Core Advantages
The S71906 ACDTP/P4B is a super-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and high-speed capability. As a single-row bearing, it is optimized to support combined loads (radial and axial) simultaneously. Its key advantages include high rigidity and superior running accuracy, enabled by its P4 (ABEC-7) tolerance class and a 25° contact angle. This bearing is preloaded and pre-lubricated, making it an ideal, ready-to-install solution for high-performance spindles and precision machinery where reliability is critical.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| S7 | Designates a series of high-precision, high-speed angular contact ball bearings. |
| 1906 | Indicates the bearing size: 30mm bore, 47mm outside diameter, 9mm width. |
| A | Signifies a 25° contact angle, optimized for supporting high axial loads. |
| CD | Specifies a polyamide (Phenolic) cage, which is lightweight and ideal for high-speed operation. |
| TP | Indicates the bearing is sealed on both sides for contamination protection. |
| P4B | Denotes an ultra-high P4 (ABEC-7) precision tolerance class, ensuring minimal runout and vibration. |
S71906 ACDTP/P4B Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The 25° contact angle and robust construction using chrome steel rings and balls provide excellent resistance to deformation under combined radial and axial loads.
- Superior High-Speed Performance: The lightweight phenolic resin cage (CD) reduces centrifugal forces, while the optimized internal geometry and pre-lubrication contribute to a high limiting speed of 30,000 rpm.
- Exceptional Precision: Manufactured to P4 tolerance class, this bearing guarantees extremely tight dimensional and running accuracy, which is critical for applications requiring minimal vibration and high positional accuracy.
- Maintenance-Free Operation: The integrated seals (TP) effectively shield the bearing from contaminants and retain the factory-applied lubricant, enabling long service life without re-lubrication within the specified temperature range.
S71906 ACDTP/P4B Bearing Typical Application Areas
This precision bearing is engineered for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling and routing spindles.
- High-Frequency Motors: Spindles for electric motors requiring high rotational accuracy.
- Medical Equipment: High-speed handpieces and dental drills.
- Robotics: Precision joints and actuators.
