The KSSG4-25R32 is a ground spur gear made of S45C carbon steel with induction-hardened teeth reaching 50 to 60 HRC and a black oxide surface treatment except on the teeth. It has a module of 4, 25 teeth, a bore diameter of 80 mm, a pitch diameter of 100 mm, an outside diameter of 108 mm, a face width of 40 mm, and a hub width of 25 mm. It is mounted using four M8×40 hexagon socket head cap screws, with a mounting hole circle diameter of 60 mm. The gear meets JIS grade N7 accuracy per JIS B1702-1:1998 and is designed for mating with hardened racks. Its allowable torque is 389 N·m for bending strength and 213 N·m for surface durability, with a backlash of 0.14 to 0.24 mm and a weight of 2.84 kg.
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:
| Stock Drive Products & Sterling Instrument - SDP/SI | |
|---|---|
| Product Category | Gears |
| Product Number | KSSG4-25R32 |
| Product Name | Module 4, 25 Tooth Heat-Treated S45C Carbon Steel Spur Gear |
| Gear Type | Spur; Rack |
| Number of Teeth | 25 |
| Design | Metric |
| Pressure Angle | 20° |
| Material | Steel; Carbon Steel |
