KSSG Series ground spur gears are precision steel gears with a module of 1, 20° pressure angle, and S45C material with induction-hardened tooth surfaces rated at 50~60 HRC. The KSSG1-42J variant has 42 teeth, a 30 mm pitch diameter, 44 mm outside diameter, 18 mm face width, 10 mm hub width, and 44 mm total length, with an 18 mm finished bore, a 5 mm keyway (5x5 mm), and a single set screw. Allowable torque is 10.5 N·m (1.07 kgf·m), and backlash is 0.08~0.16 mm. The gear meets JIS grade N7 precision (JIS B1702-1: 1998). Secondary operations on tooth surfaces are prohibited due to induction hardening.
Module 1, 42 Tooth Ground Steel Spur Gear with 18mm 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 | KSSG1-42J18 | KSSG1-42J18 |
| Product Name | Metal Spur Gears (metric) | Module 1, 42 Tooth Ground Steel Spur Gear with 18mm Finished Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 42 | 42 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Steel | Steel; Hardened; Hardened Carbon Steel |
