A steel shaft 800 mm long transmitting 15 kW at 400 Q5: r.p.m. is supported at two bearings at the two ends. A gear wheel having 80 teeth and 500 mm pitch circle diameter is mounted at 200 mm from the left hand side bearing and receives power from a pinion meshing with it. The axis of pinion and gear lie in the horizontal plane. A pulley of 300 mm diameter is mounted at 200 mm from right hand side bearing and is used for transmitting power by a belt. The belt drive is inclined at 30° to the vertical in the forward direction. The belt lap angle is 180 degrees. The coefficient of friction between belt and pulley is 0.3. Design and sketch the arrangement of the shaft assuming the values of safe stresses as: t = 55 MPa; 0, = 80 MPa. Take torsion and bending factor 1.5 and 2 respectively. [Ans. 120 mml

A steel shaft 800 mm long transmitting 15 kW at 400 Q5: r.p.m. is supported at two bearings at the two ends. A gear wheel having 80 teeth and 500 mm pitch circle diameter is mounted at 200 mm from the left hand side bearing and receives power from a pinion meshing with it. The axis of pinion and gear lie in the horizontal plane. A pulley of 300 mm diameter is mounted at 200 mm from right hand side bearing and is used for transmitting power by a belt. The belt drive is inclined at 30° to the vertical in the forward direction. The belt lap angle is 180 degrees. The coefficient of friction between belt and pulley is 0.3. Design and sketch the arrangement of the shaft assuming the values of safe stresses as: t = 55 MPa; 0, = 80 MPa. Take torsion and bending factor 1.5 and 2 respectively. [Ans. 120 mml

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Q4: The reverted gear train shown in Fig.(1) has the following data, Circular pitch Pc=D0.4 teeth/mm , T1=15, T2=30, T3=20 , N1= 150 rpm (cw) Determine: • 1. module of gear train (m3?) Output Input 2.Pitch diameter of gears (D1, D2, D3, D4) 3. The centre distance between shafts (C) • 4. Gear ratio (G), and Train value (TV) • 5. output speed (N4) 4/14/2020 27
The gear-reduction unit shown has a gear that is press fit onto a cylindrical sleeve that rotates around a stationary shaft. The helical gear transmits an axial thrust load T of 1000 N as shown in the figure. Tangential and radial loads (not shown) are also transmitted through the gear, producing radial ground reaction forces at the bearings of 3200 N for bearing A and 2400 N for bearing B. The desired life for each bearing is 100 kh at a speed of 180 rev/min with a 90 percent reliability. The first iteration of the shaft design indicates approximate diameters of 30 mm at A and at B. Select suitable tapered roller bearings. B
hello please help me this homework question considering the time limit I have less than 30min
There are two pairs of closed soft tooth surface spur gears A and B,Parameters of A: modulus m = 2mm, number of teeth Z1 = 40, Z2 = 90 , width of teeth b = 60mm.Parameters of B : modulus m = 4mm, number of teeth Z1 = 20, Z2 = 45 , width of teeth b = 60mm.The accuracy of the two pairs of gears is grade8, and other conditions are the same. Try to compare the contact fatigue strength and bending fatigue strength of the two pairs of gears? And explain the reason.
A 20° full depth involute spur pinion of 4 mm module and 21 teeth is to transmit 15 kW at 960 rpm. Its face width is 25 mm. The tangential force transmitted (in N) is (a) 3552 (c) 1776 (b) 2611 (d) 1305
5. For the engine-transmission-propeller problem shown below, The engine generates a torque of 219lb-ft, and it is bolted to a frame at locations A and B. The transmission reverses the rotation direction. The transmission ratio is 1.5 (i.e. the propeller speed is -1/1.5 the engine speed, the minus sign indicates the change in direction). d. Sketch the free body diagram. Be sure to show the torques at the input and outputs to the different components. Note the change in the rotation direction between the engine and shaft. e. Solve for the reaction forces at the bolt supports of the engine, if the distance between them is 1 ft. Propeller Engine Reduction ratio 1.5 Engine is attached B
The module and the number of teeth on the pinion of a spur gear are 12mm and 15teeth respectively.A power of 400kW is to be transmitted at 1700rpm of width.if the involute teeth are of standard proportions (addendum=m) with the pressure angle of 22.5° determine (A) torque due to power delivered (B) tangential load (C) teeth width (E)load on the bearings
A steel spur pinion has 16 teeth cut on the 20° full-depth system with a module of 8 mm and a face width of 90 mm. The pinion rotates at 150 rev/min and transmits 5 kW to the mating steel gear. This pinion is to mesh with a steel gear with a gear ratio of 4:1. The Brinell hardness of the teeth is 200, and the tangential load transmitted by the gears is 5 kN. If the contact fatigue strength of the steel can be estimated from the AGMA formula of Sc= 2.22 HB + 200 MPa, estimate the factor of safety of the drive based on a surface fatigue failure. The factor of safety of the drive is
A spur pinion rotating at 20 rad/sec and having 20 teeth transmits 20 kW to a gear wheel. The pressure angle is 20° and module is 20mm. The reaction exerted by the pinion at the centre of thc shaft is
Two cqual involute gear wheels of 40 teeth each, 3 mm module and 20° pressures angleare in mesh. Determine the minimum addendum if 2 pairs of teeth are always in mesh.The gear wheels rotate at 750 r.p.m. and transmit 4.6 kW. Find the normal force at eachpair assuming equal direction of load between the pairs. Neglect friction.