KSS2.5-55 is a steel spur gear with a module of 2.5 and 55 teeth, featuring a plain bore. The gear is made of S45C steel with a tooth hardness of less than 194 HB, a 20° pressure angle, and Standard full depth teeth. It meets JIS Grade N8 precision (JIS B1702-1:1998). The allowable torque is 3.19 N·m (0.325 kgf·m), with a theoretical backlash of 0.18 to 0.40 mm. Dimensions include a pitch diameter of 137.5 mm, outside diameter of 142.5 mm, face width of 25 mm, and a keyway size of 8×3.3 mm for standard versions. Set screw and keyway options are available as variants. The gear does not undergo heat treatment.
Module 2.5, 55 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 | KSS2.5-55 | KSS2.5-55 |
| Product Name | Metal Spur Gears (metric) | Module 2.5, 55 Tooth Mild Steel Spur Gear with Plain Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 55 | 55 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Steel | Steel; Carbon Steel |
