(c) Estimate the efficiency of the jack for raising the load. (d) Estimate the power required to drive the screw at a constant 1 revolution per second. Schematic and Given Data: Load 50 kN

Q: A single-threaded power screw of square form is to raise a load of 90KN at the rate of 360mm/min.…

A: The given information in the problem are shown in the following attached image:

Q: How much torque must be applied to drive the screw with the applied load in units of newton meters?

A: Here,  is lead angle,  is pitch,  is mean thread diameter.

Q: A double-threaded power screw is used to raise a load of 5 kN. The nominal diameter is 60 mm and…

A:

Q: Estimate the bending stresses for the teeth of both pinion and gear in the gearbox of a lathe: power…

A: Given:Power source: 4 kWRotating electric motor; N = 2880 rpmm= 2 mN1=17 N2= 49Pressure angle :…

Q: 1. A single-threaded 25-mm power screw is 25-mm in diameter with a pitch of 5mm. A vertical load on…

A:

Q: 1. A machine vice, as shown in the figure has single start, square threads with 22 mm nominal…

A:

Q: Two identical 4 in. major-diameter power screws (single-thread) with modified square threads are…

A: Given:f = 0.1fc = 0.24v = 3ft/min = 36 in /minTo find:Power required to drive each screw when the…

Q: A single-threaded power screw with square threads pushes against a load of 3,736 N at a speed of 42…

A: Here,  is lead angle,  is pitch,  is mean thread diameter.

Q: A screw jack having a 2 in double-thread Acme screw is used to raise a load of 6200 lb. A plain…

A:

Q: single square-thread screw has an input power of 3 kW at a speed of 1 rev/s. The screw has a…

A:

Q: What is the rotational speed of the screw in units of revolutions per minute?

A: Here, p is pitch,  is major diameter of screw.

Design of Shafts and Shaft Components

The shaft is basically defined as the machine element that rotates, is in circular cross-section, it is majorly used to transfer the power from one part of the system to another, or from a power generating machine to a power absorbing machine. The shaft is supported on bearings and is rotated with the help of a set of gears or pulleys that are used for the power transmission. Bending moment, torsion, and an axial force act upon the shaft. Designing of shaft primarily involves determining stresses at a critical point in the shaft that is arising due to loading.