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圆上清支美大学 Helical Gears(斜齿轮) Helical gears are similar to spur gears but have teeth inclined to the axis of rotation. ▣ Helix angle can be a few degrees or as much as 450 ▣ Can perform essentially same function as spur gears, connecting parallel shafts for speed reduction/increase and torque increase/reduction. o 周 上海充廷大学 Helical Gears(斜齿轮) 口 Helix is either right or left-handed (左旋、右旋) ▣ Opposite-hand helical gears with the same helix angle mesh(啮合) with their axes parallel. Same-hand helical gears mesh with their (non-intersecting)axes skewed or crossed >Have theoretical point contact between the teeth. >Limits their load-carrying capacity compared to parallel-axis helicals. which mate with a roll-slide motion (a)Opposite-hand pair (b)Same-hand pair similar to spur gears,but engage meshed on parallel meshed on crossed their teeth in a smooth,wiping axes axes action across the face width 55  Helical gears are similar to spur gears but have teeth inclined to the axis of rotation. Helical Gears(斜齿轮)  Helix angle can be a few degrees or as much as 450  Can perform essentially same function as spur gears, connecting parallel shafts for speed reduction/increase and torque increase/reduction.  Helix is either right or left-handed (左旋、右旋)  Opposite-hand helical gears with the same helix angle mesh (啮合) with their axes parallel.  Same-hand helical gears mesh with their (non-intersecting) axes skewed or crossed  Have theoretical point contact between the teeth.  Limits their load-carrying capacity compared to parallel-axis helicals, which mate with a roll-slide motion similar to spur gears, but engage their teeth in a smooth, wiping action across the face width Helical Gears(斜齿轮)
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