Module 1 left-handed ground helical gear with 25 teeth, SCM440 material, induction hardened tooth surface at 50~60HRC, 21°30' helix angle, and JIS grade N6 precision. Standard full-depth teeth with 20° transverse pressure angle. Includes plain bore, hub diameter of 25 mm, pitch diameter of 25 mm, outside diameter of 27 mm, face width of 8 mm, hub width of 10 mm, total length of 18 mm, allowable torque of 8.12 N·m (bending strength) and 0.83 kgf·m (surface durability), backlash of 0.08~0.16 mm, and weight of 0.048 kg. Axial thrust forces are produced. Secondary operations on teeth are prohibited due to induction hardening.
Module 1, 25 Tooth, Left Handed Ground Helical Gear with Plain Bore
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Shafts
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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
| QTC METRIC GEARS | Stock Drive Products & Sterling Instrument - SDP/SI | |
|---|---|---|
| Product Category | Gears | Gears |
| Product Number | KKHG1-25L | KKHG1-25L |
| Product Name | Commercial & Precision Helical Gears (metric) | Module 1, 25 Tooth, Left Handed Ground Helical Gear with Plain Bore |
| Gear Type | Helical | Helical; Rack |
| Number of Teeth | 25 | 25 |
| Design | Metric | |
| Pressure Angle | 20° | 20° |
| PD | 25 mm (0.9843 inch) |
