Module 4, 30-tooth ground spur gear with a 12 mm keyway width and 3.3 mm depth, designed for high torque transmission. The gear has a bore diameter of 70 mm, outside diameter of 128 mm, face width of 40 mm, and total length of 60 mm. It features a material composition of SCM415 with overall carburizing heat treatment, achieving a hardness of 55~60 HRC. Backlash is specified at 0.16~0.26 mm, and allowable torque is 3.54 N·m (36.1 kgf·cm). Precision conforms to JIS grade N5 (JIS B1702-1:1998). No secondary operations are permitted due to the carburized surface. The keyway is manufactured to JIS Js9 tolerance, with potential dimensional variation from heat treatment effects.
Module 4, 30 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 | KMSGB4-30 | KMSGB4-30 |
| Product Name | Metal Spur Gears (metric) | Module 4, 30 Tooth Ground Steel Spur Gear |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 30 | 30 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Steel | Steel; Hardened; Hardened Carbon Steel |
