KSSG3-30J25 is a module 3, 25-tooth ground spur gear with a 25 mm bore diameter, 75 mm pitch diameter, 90 mm outside diameter, 30 mm face width, and 50 mm total length, featuring an 8 mm wide by 3.3 mm deep keyway. It is made of S45C steel with induction-hardened tooth surfaces (50~60 HRC), has a 20° pressure angle, and meets JIS grade N7 precision (JIS B1702-1:1998). The gear has a theoretical backlash range of 0.12~0.22 mm, and includes a set screw rated for 10 N·m. Secondary operations on the tooth area are prohibited due to induction hardening.
Module 3, 30 Tooth Ground Steel Spur Gear with 25mm Finished 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°
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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 | KSSG3-30J25 | KSSG3-30J25 |
| Product Name | Metal Spur Gears (metric) | Module 3, 30 Tooth Ground Steel Spur Gear with 25mm Finished Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 30 | 30 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Steel | Steel; Hardened; Hardened Carbon Steel |
