KSSG3-42J25 is a ground spur gear with module 3, 42 teeth, a 25 mm bore, and a JIS grade S1 precision rating. It has a 20° pressure angle, is made from S45C steel with induction-hardened tooth surfaces (50-60 HRC), and has a face width of 30 mm, hub width of 20 mm, and total length of 50 mm. The keyway is 8 mm wide by 3.3 mm deep, conforming to JIS B1301 Js9 tolerance. Backlash is specified at 0.14-0.24 mm for a matched pair. The gear includes an M6 set screw. Secondary operations on tooth areas are prohibited due to induction hardening. The product is part of the KSSG series, designed for applications requiring high precision and hardened tooth surfaces.
Module 3, 42 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°
For custom components or modifications
to a standard part, call us or submit an RFQ.
REQUEST A QUOTE
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 | KSSG3-42J25 | KSSG3-42J25 |
| Product Name | Metal Spur Gears (metric) | Module 3, 42 Tooth Ground Steel Spur Gear with 25mm 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 |
