Below is a representation of a helical gear. Blue lines in the figure signify?

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A pair of parallel helical gears consist of 15 teeth pinion meshing with a 40 teeth gear. The helix angle is 22⁰ and normal pressure angle 19⁰. The normal module is taken as 4mm. Calculate the transverse pressure angle in degrees.

asked Feb 2 in Machine Design by Carter (89.5k points)

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A pair of parallel helical gears consist of 15 teeth pinion meshing with a 40 teeth gear. The helix angle is 22⁰ and normal pressure angle 19⁰. The normal module is taken as 4mm. Calculate the pitch circle diameter of pinion.

asked Feb 2 in Machine Design by Carter (89.5k points)

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A pair of parallel helical gears consist of 15 teeth pinion meshing with a 40 teeth gear. The helix angle is 22⁰ and normal pressure angle 19⁰. The normal module is taken as 4mm. Calculate the dedendum circle diameter of the pinion.

asked Feb 2 in Machine Design by Carter (89.5k points)

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A pair of parallel helical gears consist of 15 teeth pinion meshing with a 40 teeth gear. The helix angle is 22⁰ and normal pressure angle 19⁰. The normal module is taken as 4mm. Calculate the pitch circle diameter of the gear.

asked Jan 27 in Machine Design by Carter (89.5k points)

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A pair of parallel helical gears consist of 15 teeth pinion meshing with a 40 teeth gear. The helix angle is 22⁰ and normal pressure angle 19⁰. The normal module is taken as 4mm. Calculate addendum circle diameter of the pinion.

asked Jan 23 in Machine Design by Carter (89.5k points)

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There is same type of tooth meshing in helical and spur gear.

asked Jan 23 in Machine Design by Carter (89.5k points)

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Among spur gear and helical gear, which has smooth engagement and thus lesser noise?

asked Jan 23 in Machine Design by Carter (89.5k points)

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The direction of tangential component for a driving gear is same to the direction of rotation.

asked Jan 21 in Machine Design by Carter (89.5k points)

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Among the normal module and transverse module, which one has greater value?

asked Jan 25 in Machine Design by Carter (89.5k points)

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A pair of helical gears consist of 25 teeth pinion gear meshing with a 90 teeth gear. Calculate the material constant k If surface hardness is 260BHN.

asked Jan 27 in Machine Design by Carter (89.5k points)

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A pair of helical gears consist of 25 teeth pinion gear meshing with a 90 teeth gear. Calculate the wear strength If surface hardness is 260BHN. Also face width=35mm, module=4mm and helix angle=25⁰.

asked Jan 23 in Machine Design by Carter (89.5k points)

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The net axial force acting on bearing is zero in case of double helical gears while none zero in case of herringbone gears.

asked Jan 27 in Machine Design by Carter (89.5k points)

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The teeth of the helical gears are cut parallel to the shaft axis.

asked Jan 27 in Machine Design by Carter (89.5k points)

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Crossed helical gears have very low load carrying capacity.

asked Jan 25 in Machine Design by Carter (89.5k points)

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Helical gears mounted on parallel shafts are called crossed helical gears.

asked Jan 25 in Machine Design by Carter (89.5k points)

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A herringbone speed reducer consist of 20 teeth pinion driving a 100 teeth gear. The normal module of gear is 2mm. The face width of each half is 30mm and Lewis factor is 0.4. Calculate the material constant K if surface hardness is 400BHN.

asked Feb 2 in Machine Design by Carter (89.5k points)

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A pair of spur gears consist of 25 teeth pinion meshing with a 115 teeth gear. The module is 5mm. Calculate pitch circle diameter of the pinion.

asked Jan 27 in Machine Design by Carter (89.5k points)

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Calculate the torque on the gear A.

asked Jan 25 in Machine Design by Carter (89.5k points)

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A pair of spur gears consist of 25 teeth pinion meshing with a 115 teeth gear. The module is 5mm. Calculate the centre distance.

asked Jan 23 in Machine Design by Carter (89.5k points)

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A herringbone speed reducer consist of 20 teeth pinion driving a 100 teeth gear. The normal module of gear is 2mm. The face width of each half is 30mm and Lewis factor is 0.4. If permissible bending stress is 500N/mm², then calculate the beam strength.

asked Jan 23 in Machine Design by Carter (89.5k points)

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A pair of spur gears consist of 25 teeth pinion meshing with a 115 teeth gear. The module is 5mm. Calculate the addendum.

asked Jan 23 in Machine Design by Carter (89.5k points)

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A compound gear train consists of at least 3 shafts connected to each other.

asked Jan 23 in Machine Design by Carter (89.5k points)

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A pair of spur gears consist of 25 teeth pinion meshing with a 115 teeth gear. The module is 5mm. Calculate the tooth thickness.

asked Jan 22 in Machine Design by Carter (89.5k points)

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If driving gear rotates in CW, then driven gear will rotate in?

asked Feb 2 in Machine Design by Carter (89.5k points)

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If driving gear rotates ACW, driven gear will rotate in which direction?

asked Jan 27 in Machine Design by Carter (89.5k points)

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