The KSS2.5 series consists of steel spur gears with a module of 2.5 mm, 20° pressure angle, and S45C material, precision-rated to JIS grade N8 per JIS B1702-1:1998. Gears have standard full-depth teeth, plain bore, and optional keyways conforming to JIS B1301 with Js9 tolerance. Backlash is specified as 0.14 to 0.28 mm. Each gear includes a set screw for shaft fastening, but set screw use is limited to light-load applications. Allowable torque and weight vary by number of teeth, with 18-tooth models having a pitch diameter of 45 mm, outside diameter of 50 mm, and thickness of 25 mm. Serial variants marked J-series are available on request with limited order quantities. No heat treatment is applied, and tooth hardness is less than 194 HB.
Module 2.5, 18 Tooth Mild Steel Spur Gear with Plain Bore
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°
For custom components or modifications
to a standard part, call us or submit an RFQ.
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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 | KSS2.5-18 | KSS2.5-18 |
| Product Name | Metal Spur Gears (metric) | Module 2.5, 18 Tooth Mild Steel Spur Gear with Plain Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 18 | 18 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Steel | Steel; Carbon Steel |
