KKHG3-45R is a right-hand ground helical gear with a module of 3, 45 teeth, and a plain bore. It has a pitch diameter of 135 mm, outside diameter of 141 mm, face width of 25 mm, hub width of 16 mm, and total length of 41 mm. The gear is made of SCM440 with tooth surface induction hardened to 50-60 HRC. It meets JIS grade N6 (JIS B1702-1:1998) and JIS grade 2 (JIS B1702:1976) precision standards. The transverse pressure angle is 20°, and the helix angle is 21°30'. Allowable torque is 558 N·m (56.9 kgf·m) for bending strength and 869 N·m (88.6 kgf·m) for surface durability, with a backlash of 0.14-0.24 mm. Axial thrust forces are produced by the helical design.
Module 3, 45 Tooth, Right Hand Ground Helical Gear with Plain Bore
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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 | KKHG3-45R | KKHG3-45R |
| Product Name | Commercial & Precision Helical Gears (metric) | Module 3, 45 Tooth, Right Hand Ground Helical Gear with Plain Bore |
| Gear Type | Helical | Helical; Rack |
| Number of Teeth | 45 | 45 |
| Design | Metric | |
| Pressure Angle | 20° | 20° |
| PD | 135 mm (5.31 inch) |
