KSSA3-56 is a steel hubless spur gear with module 3, 56 teeth, and S5 precision grade, machined from S45C material with a tooth hardness of less than 194HB. It has a 20° pressure angle, standard full-depth teeth, and a theoretical backlash of 0.20~0.44 mm. The gear has a bore diameter of 80 mm, an outer diameter of 174 mm, a tooth width of 30 mm, and weighs 4.47 kg. It is rated for an allowable torque of 90.3 N·m (9.21 kgf·m). JIS grade N8 precision is documented per JIS B1702-1:1998. Secondary operations that reduce tooth width are discouraged due to impact on precision and strength.
Module 3, 56 Tooth Mild Steel Hubless Spur Gear with 40mm 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 | KSSA3-56J40 | KSSA3-56J40 |
| Product Name | Metal Spur Gears (metric) | Module 3, 56 Tooth Mild Steel Hubless Spur Gear with 40mm Finished Bore |
| Gear Type | Spur | Spur; Rack |
| Number of Teeth | 56 | 56 |
| Design | Metric | Metric |
| Pressure Angle | 20° | 20° |
| Material | Steel | Steel; Carbon Steel |
