F4-9M
Miniature Thrust Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
F4-9M
Basic Information
Bearing type
Ball
System of measurement
Metric
Weight
1.2 g
Seal type
Open
For load direction
Thrust
Main Dimensions
Bore diameter
4 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
9 mm
Outside diameter tolerance
-0.008mm to 0
Width
4 mm
Width tolerance
-0.12mm to 0
Chamfer dimension
0.15 mm
Inner Ring Dimensions
Inner ring type
Standard
Ball & Washer Dimensions
Ball diameter
1.588 mm
Ball quantity
6
Washers type
grooved raceway
Shaft washer outer diameter
8.8 mm
Performance
Temperature range
-30° to 110 °C
Axial dynamic load rating
180 lbf
Axial static load rating
117 lbf
Limiting speed
8 X1000 rpm
Lubrication
Required
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Brass
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1.52
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
F4-9M Bearing Product Overview & Core Advantages
The F4-9M is a metric thrust ball bearing engineered for high-precision axial load applications. This compact, open-type bearing is designed to accommodate unidirectional thrust loads with high reliability. Manufactured from chrome steel and featuring a brass cage, it delivers excellent performance in demanding environments with a limiting speed of 80,000 rpm. Its small footprint and low weight (1.2 g) make it ideal for applications where space and mass are critical constraints.
F4-9M Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| F4-9M | Indicates a metric thrust ball bearing with a 4 mm bore and 9 mm outside diameter. |
| Open (Seal Type) | No integral seals; requires external sealing and specific lubrication for operation. |
F4-9M Bearing Structural Features & Performance Benefits
- High-Speed Capability: The brass cage and optimized design contribute to an exceptionally high limiting speed of 80,000 rpm, making it suitable for very high-speed spindles and instruments.
- Axial Load Capacity: Engineered specifically for thrust loads, with a dynamic load rating of 180 lbf and a static load rating of 117 lbf.
- Precision & Rigidity: Features tight dimensional tolerances on the bore diameter, outside diameter, and width, ensuring precise shaft and housing fits for minimal runout and high system rigidity.
- Grooved Raceway Washers: The shaft and housing washers with grooved raceways ensure smooth rolling motion and consistent performance under axial stress.
F4-9M Bearing Typical Application Areas
This thrust ball bearing is ideally suited for applications requiring high-speed rotation and precise axial positioning, including:
- High-speed machine tool spindles
- Precision medical and dental handpieces
- Small precision instruments and optical devices
- Office automation equipment
