F9-20M
Miniature Thrust Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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F9-20M Bearing Product Overview & Core Advantages
The F9-20M is a metric thrust ball bearing engineered for applications requiring precise axial load handling in compact spaces. This open-type bearing is designed to accommodate unidirectional thrust loads with high reliability. Its construction from chrome steel rings and balls ensures durability and consistent performance under demanding conditions. The bearing's compact design, with a 9 mm bore and 20 mm outside diameter, makes it ideal for applications where space is at a premium without compromising on load capacity.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| F9 | Indicates a thrust ball bearing with a 9 mm bore diameter. |
| 20 | Specifies the 20 mm outside diameter. |
| M | Denotes metric system of measurement. |
Key Design Note: The open seal type allows for versatile lubrication options but requires a clean operating environment or external sealing for optimal service life.
F9-20M Bearing Structural Features & Performance Benefits
- High Load Capacity: Features a grooved raceway on both washers and utilizes 8 precision chrome steel balls (3.175 mm diameter) to provide a high axial dynamic load rating of 755 lbf and a static load rating of 675 lbf.
- Precision & Rigidity: Manufactured with tight bore and outside diameter tolerances (0 to -0.008mm) for precise shaft and housing fits, ensuring stable operation and minimal runout.
- Durable Cage: The brass cage reliably retains and spaces the balls, contributing to smooth operation and stable performance at the limiting speed of 2,500 rpm.
- Material Integrity: Constructed entirely from chrome steel (rings and balls), offering excellent resistance to wear and fatigue, suitable for a temperature range of -30° to 110 °C.
F9-20M Bearing Typical Application Areas
- Automotive Components: Clutch release mechanisms, steering systems.
- Industrial Machinery: Low-speed indexing tables, jacks, and valve actuators.
- Precision Instruments: Optical positioning devices and medical equipment.
- General Engineering: Any application requiring reliable axial load support in a compact footprint.
