KMSGA4-20 is a ground spur gear with module 4, 20 teeth, and a bore diameter of 28 mm. It has an outside diameter of 88 mm, face width of 40 mm, and total length of 60 mm. The gear is made from SCM415 steel with overall carburizing heat treatment, achieving 55-60 HRC hardness. It meets JIS grade N5 precision (JIS B1702-1:1998), has a 20° pressure angle, and a keyway width of 8 mm by depth 3.3 mm. Allowable torque is 1.72 N·m (1.63 kgf·m) with backlash of 0.14-0.24 mm. No secondary operations are permitted due to the carburizing process.
Module 4, 20 Tooth Ground Steel Spur Gear
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 | KMSGA4-20 | KMSGA4-20 |
| Product Name | Metal Spur Gears (metric) | Module 4, 20 Tooth Ground Steel Spur Gear |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 20 | 20 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Steel | Steel; Hardened; Hardened Carbon Steel |
