Given that the loading is smooth, which we can interpret as uniform loading of the driven and driving machine, what is the the overload factor, Ko? A 17-tooth 20° pressure angle spur gear rotates at 1800 rev/min and transmits 4 hp to a 52-toothgear. The diametral pitch is 10 teeth/in., the face width 1.5 in., and the quality standard is No. 6.The tooth profiles are uncrowned.The gears are straddle mounted with bearings immediately adjacent.The pinion is a grade 1 steel with a hardness of 240 Brinell tooth surface and a through-hardenedcore. The gear is steel, through-hardened, grade 1 material, with a Brinell hardness of 200, toothsurface and core.The loading is smooth, and the gears are in a commercially-enclosed unit.

Given: ϕ=20° Tp = 17 TG = 52 P = 4 hp = 4* 0.7457 kW = 2.983 kW N = 1800 rev/ min Dp = 10 teeth/in b…

Answered: Given that the loading is smooth, which…

Given that the loading is smooth, which we can interpret as uniform loading of the driven and driving machine, what is the the overload factor, Ko?

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

A Coniflex, straight-tooth bevel gearset is supported on shafts with centerlines intersecting at a 90° angle. The gear is straddle mounted between closely positioned bearings, and the pinion overhangs its support bearing. The 15-tooth pinion rotates at 900 rpm, driving the 60-tooth gear, which has a di- ametral pitch of 6, pressure angle of 20°, and face width of 1.25 inches. The material for both gears is through-hardened Grade I steel with a hardness of BHN 300 (see Figure). It is desired to have a reliability of 90 percent, a design life of 10° cy- cles, and a governing safety factor of 2.5. Estimate the maximum horsepower that can be transmitted by this gear re- ducer while meeting all of the design specifications given.
A pair of gears with 20° full-depth teeth are to transmit 15hp at 1750 rpm of the 4-in pinion; velocity ratio desired is about mw= 4; intermittent service. Use a strength reduction factor of about 1.4, with the load at the tip and teeth carefullycut. A.Determine the diametral pitch, B. face width, C. and tooth numbers if the material is cast iron, class 25
A pair of gray iron and steel helical gears, having a helix angle of 15° with 20° full-depth teeth are to transmit 10 hp at 1500 rpm of a 4-in pinion having a total number of 28teeth. The velocity ratio desired is about mw = 4. Find the (a) normal circular pitch, (b) normal diametral pitch, (c) axial pitch, and (d) dynamic load
A 57-tooth spur gear is in mesh with a 23-tooth pinion. The gearset transmits 125 hp at 1000 pinion rpm. Size the spur gears for a bending failure safety factor of at least 2 assuming a steady torque, 25∘ pressure angle, full-depth teeth, Qν = 9, an AISI 4140 steel pinion, and a class 40 cast iron gear. Part A Find the appropriate standard diametral pitch for the gearset. Part B Find the minimum required face width of the gears needed to satisfy the safety requirements
A pair of gray iron and steel helical gears, having a helix angle of 15° with 20° full-depth teeth are to transmit 10 hp at 1500 rpm of a 4-in pinion having a total number of 28teeth. The velocity ratio desired is about mw = 4. Find the (a) normal circular pitch, (b) normal diametral pitch, (c) axial pitch, and (d) dynamic loa
Provide the complete step-by-step solution, given data, conversion of units, and sketch for this problem. A turbine at 30,000 rpm is used to drive a reduction gear delivering 3 hp at 3,000rpm. The gears are 20 degrees involute herringbone gears of 28 pitch and 2 1/8 ineffective width. The pinion has 20 teeth with a helix angle of 23 deg. Determine theload normal to the tooth surface. A. 20.4 lbs B. 24.4 lbs C. 28.4 lbs D. 32.4
A helical cast steel gear with 30o helix angle has to transmit 35 kW at 2000 rpm. If the gears has 25 teeth, find the necessary module, pitch diameters and face width for 20o full depth involute teeth. The static stress for cast steel may be taken as 100 MPa. The face width may be taken as 3 times to normal pitch. The tooth form factor is given by the expression y'= 0.154-0.912/TE, where TE represents the equivalent number of teeth. the velocity factor is given by Cv=6/(6+v), where v is the peripheral speed of the gear in m/s.
A pair of gears with 14.5° full-depth teeth are to transmit 5 hp at 1800 rpm of the pinion; mw= 2.5; Np = 20 teeth; carefully cut teeth; intermittent service; Kf= 1.45. A. Determine the diametral pitch, B. face width, C. and tooth numbers if the pinionis to be made of phosphor gear bronze (SAE 65, Table AT 3
Please answer part 2, 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. 1.The tangential force transmitted (in N) is (a) 3552 (b) 2611 (c) 1776 (d) 1305 2. Given that the tooth geometry factor is 0.32 and the combined effect of dynamic load and allied factors intensifying the stress is 1.5 the minimum allowable stress for the gear material in MPa is, (a) 242.0 (c) 121.0 (b) 166.5 (d) 74.0
The figure shows a double-reduction helical gearset. Pinion 2 is the driver, and it receives a torque of 1200 Ibf • in from its shaft in the direction shown. Pinion 2 has a normal diametral pitch of 8 teeth/in, 14 teeth, and a normal pressure angle of 20° and is cut right-handed with a helix angle of 30°. The mating gear 3 on shaft b has 36 teeth. Gear 4, which is the driver for the second pair of gears in the train, has a normal diametral pitch of 3 teeth/in, 15 teeth, and a normal pressure angle of 20° and is cut left-handed with a helix angle of 15°. Mating gear S has 45 teeth. Find the magnitude and direction of the force exerted by the bearings C and D on shaft b if bearing C can take only a radial load while bearing D is mounted to take both radial and thrust loads.
A simple gear train of 30 and 50 teeth for pinion and gear wheel respectively,is used to drive an electric wheelchair at a velocity that is double the maximum velocity of slip. The pinion has an equal addendum as the gear wheel, a module of 3 mm, and a pressure angle of 14.5o. The wheelchair has a maximum velocity of 5 m/s when its pinion rotates at 800 r.p.m. Calculate: 1.1. The magnitude of the velocity of slip of gears in mesh. (2)1.2. The angular speed of the gear wheel in rad/s. (4)1.3. The maximum length of a path of the approach in mm. (2)1.4. The length of a path of a recess in mm. (7)1.5. The addendum of the gears in mm. (7)1.6. The contact ratio.
Qv quality number for camberless straight bevel pinion gear with 20 teeth and a modulus of 4 mmis 6. Made of 1st quality steel, with a hardness of 300 HB, the pinion and the reciprocating gear are completelyhardened. The rotated gear has 60 teeth. Pinion life is 109 cycles and reliabilitycoefficient is 0.999. Shaft angle is 90o, pinion rotation speed is 900 rpm. Tooth width 32 mm andThe normal pressure angle is 20o. Based on AGMA bending strength, the strength of the gear systemcalculate. Load factor Ko =1, safety factor SF =1.