KSS0.5-40B is a metric steel spur gear with a module of 0.5, 40 teeth, and a bore size of Ø8 mm, designed for light-duty applications. It features a 5 mm face width, a 22 mm outside diameter, and a keyway of 3.5 mm width × 3.5 mm depth with an M4 set screw. The gear is made from S45C steel with a tooth hardness less than 194 HB, adheres to JIS Grade N8 precision (JIS B1702-1:1998), and has a 20° pressure angle. The allowable torque is 0.023 N·m, with a backlash range of 0 to 0.10 mm and a weight of 0.023 kg. Set screw fastening is recommended only for light loads; dowel pins are advised for secure mounting. The total length is 12 mm, excluding the hub and shaft interface dimensions.
Module 0.5, 40 Tooth Mild Steel Spur Gear with Set Screw
Inch Gears: AGMA 12, 10, 9, and 8
Available Pitches: 120 thru 16
Pressure Angles: 20° and 14.5°
Metric Gears: ISO 5 thru 9
Available Modules: 0.3 thru 3
Pressure Angles: 20° and 14.5°
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Elements of Metric Gear Technology
How to Achieve Optimum Performance in a Miniature Gear Train
You May Also Need:
Shafts
Bearings
Couplings
Our metal spur gears are available in a variety of materials, including:
With a variety of fastening styles, including:
| QTC METRIC GEARS | Stock Drive Products & Sterling Instrument - SDP/SI | |
|---|---|---|
| Product Category | Gears | Gears |
| Product Number | KSS0.5-40B | KSS0.5-40B |
| Product Name | Metal Spur Gears (metric) | Module 0.5, 40 Tooth Mild Steel Spur Gear with Set Screw |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 40 | 40 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Steel | Steel; Carbon Steel |
