S71909 CE/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71909 CE/P4A
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
21
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
2340 lbf
Radial static load rating
1530 lbf
Limiting speed
29 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:
$ 424.03
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S71909 CE/P4A Bearing Product Overview & Core Advantages
The S71909 CE/P4A is a single-row angular contact ball bearing engineered for high-precision applications demanding exceptional rotational accuracy and rigidity. Manufactured to P4 (ABEC-7) tolerance class, this bearing is designed to accommodate high combined loads, primarily thrust loads in one direction, making it an ideal solution for high-speed spindles and precision machinery. Its compact design, combined with a phenolic cage and pre-lubrication, ensures reliable performance in demanding operational environments.
S71909 CE/P4A Bearing Model Code Explained, Specifications & Naming Convention
The S71909 CE/P4A model designation provides detailed technical specifications:
- S7: High-precision bearing series.
- 1909: Standard size designation (45mm bore, 68mm OD, 12mm width).
- CE: Specific internal design featuring a 15° contact angle and optimized internal geometry.
- P4A: Denotes a P4 (ABEC-7) tolerance class with specific dimensional and running accuracy requirements.
S71909 CE/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The single-row angular contact design, manufactured to P4 tolerance, provides superior dimensional stability and running accuracy, essential for minimizing vibration and ensuring precise shaft positioning.
- Optimized Load Capacity: With a 15° contact angle, this bearing is engineered to efficiently handle high combined radial and axial loads, particularly excelling in one-directional thrust load applications.
- High-Speed Performance: The lightweight and robust phenolic resin cage ensures stable operation and reduced centrifugal forces, contributing to a high limiting speed of 29,000 rpm. The pre-applied lubrication is formulated for stable performance within this range.
- Sealed and Lubricated Design: The bearing comes sealed and pre-lubricated, protecting against contamination and providing long-term, maintenance-free operation within its specified temperature range of -30°C to 110°C.
S71909 CE/P4A Bearing Typical Application Areas
This precision bearing is ideally suited for applications requiring high speed and accuracy, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Medical and Dental Equipment
- Aerospace Instrumentation
