KSS1.5-21A is a steel spur gear with a module of 1.5, 21 teeth, and a S1T shape featuring a set screw for shaft attachment. It has a bore diameter of 25 mm, pitch diameter of 31.5 mm, face width of 15 mm, hub width of 10 mm, and an overall length of 25 mm. The gear is made of S45C steel with a tooth hardness less than 194 HB, precision grade JIS N8 per JIS B1702-1:1998, and a 20° pressure angle. It has an allowable torque of 1.29 N·m (0.13 kgf·m) and a theoretical backlash of 0.12~0.26 mm. Shaft fastening with set screws is recommended only for light load applications.
Module 1.5, 21 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 | KSS1.5-21A | KSS1.5-21A |
| Product Name | Metal Spur Gears (metric) | Module 1.5, 21 Tooth Mild Steel Spur Gear with Set Screw |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 21 | 21 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Steel | Steel; Carbon Steel |
