KSHE6-20L is a helical gear with a 6 mm normal module, 20 teeth, and a 20° normal pressure angle, made from S45C steel with a black oxide coating and a tooth hardness of less than 194 HB. It has a bore diameter of 30 mm, a pitch diameter of 127.32 mm, an outside diameter of 144 mm, and a face width of 60 mm. The gear has a profile shift coefficient of +0.390 and a hub width of 28 mm. The catalog lists an allowable torque of 1900 N·m (194 kgf·m) for bending strength and 402 N·m (40.9 kgf·m) for surface durability, with a backlash range of 0.23~0.57 mm and a weight of 8.05 kg. It is designed for use with right-hand helical racks, matching the 19° 31' 41" helix angle of the KSRHEF series. The gear meets JIS grade N8 accuracy per JIS B1702-1:1998.
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Helical gears are comparable to spur gears, but due to the higher contact ratio, they are quieter, vibrate less, and experience less friction. Helical gear pairs have the same helix angle but opposite threads (left-hand and right-hand). Helical gears can be used in place of spur gears; they can be used in drives with non-parallel axes or positioned in between parallel axes. Helical gears are suitable for applications involving faster speeds and larger loads because, unlike spur gears, their teeth are twisted along the helical path and progressively interlock into one another.
Helical gears can also be found in industries related to movable earth, power, and oil drilling. Because of their efficacy with heavy loads, they are found in elevators, conveyors, compressors, and blowers. The most popular helical gear application is in the automobile industry, specifically in transmissions.
Our inch and metric helical gears are offered in 48-pitch modules 1, 2, and 3.
They are available in stainless steel, aluminum, and ground-hardened steel with black oxide finishes.
Call us: 516-328-3300
| Stock Drive Products & Sterling Instrument - SDP/SI | |
|---|---|
| Product Category | Gears |
| Product Number | KSHE6-20L |
| Product Name | 6 mm Normal Module, 20 Teeth, 20° Pressure Angle, S45C Steel Helical Spur Gear |
| Gear Type | Spur; Helical; Rack |
| Number of Teeth | 20 |
| Direction | Left |
| Pressure Angle | 20° |