KMSGB1-40 is a ground spur gear with a module of 1, 40 teeth, and a 15 mm bore. It has a 10 mm face width, 12 mm hub width, and a total length of 20 mm. The gear is made of SCM415 steel with overall carburizing heat treatment, achieving a hardness of 55 to 60 HRC. It meets JIS grade N5 precision (JIS B1702-1:1998) with a 20° pressure angle and standard full-depth teeth. Backlash ranges from 0.08 to 0.16 mm. Allowable torque ratings are 34.6 N·m for bending strength and 3.53 kgf·m for surface durability. The keyway is 5 mm wide by 2.3 mm deep. Secondary operations are prohibited due to the carburizing process.
Module 1, 40 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 | KMSGB1-40 | KMSGB1-40 |
| Product Name | Metal Spur Gears (metric) | Module 1, 40 Tooth Ground Steel Spur Gear |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 40 | 40 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Steel | Steel; Hardened; Hardened Carbon Steel |
