PROBLEMA pair of straight bevel gears drives the vertical drilling machine. The approximate speed reduction is 4:1 with the pinion mounted on the horizontal drive shaft. The drill develops a torque of 495 N-mat 550 rpm. Assume the tooth form to be 20° stub, 24 teeth in the pinion and module of 4. The pinion and gear are made of steel (EP=EG= 215GPA) and have a surface hardness of 250 B.H.N. The toothform factor of the teeth is 14 ½ and take form factor as y' = 0.335.a)Determine the cone distanceb)Determine the face width assuming % of the cone distancec)Determine the formative number of teeth on the piniond)Determine the tangential forcee)Determine the determine permissible tooth load (AGMA Standards)f)Determine the maximum limiting load for wearg)Determine the endurance strength for the teeth

Answered: Image /qna-images/answer/42040298-e74c-47cb-a9a5-4ccfa04e53ab.jpg

A pair of straight bevel gears drives the vertical drilling machine. The approximate speed reduction is 4:1 with the pinion mounted on the horizontal drive shaft. The drill develops a torque of 495 N-m at 550 rpm. Assume the tooth form to be 20° stub, 24 teeth in the pinion and module of 4. The pinion and gear are made of steel (EP=EG= 215GPA) and have a surface hardness of 250 B.H.N. The tooth form factor of the teeth is 14 % and take form factor as y' = 0.335. a)Determine the cone distance b)Determine the face width assuming % of the cone distance c)Determine the formative number of teeth on the pinion d)Determine the tangential force e)Determine the determine permissible tooth load (AGMA Standards) f)Determine the maximum limiting load for wear g)Determine the endurance strength for the teeth

A pair of straight bevel gears drives the vertical drilling machine. The approximate speed reduction is 4:1 with the pinion mounted on the horizontal drive shaft. The drill develops a torque of 495 N-m at 550 rpm. Assume the tooth form to be 20° stub, 24 teeth in the pinion and module of 4. The pinion and gear are made of steel (EP=EG= 215GPA) and have a surface hardness of 250 B.H.N. The tooth form factor of the teeth is 14 % and take form factor as y' = 0.335. a)Determine the cone distance b)Determine the face width assuming % of the cone distance c)Determine the formative number of teeth on the pinion d)Determine the tangential force e)Determine the determine permissible tooth load (AGMA Standards) f)Determine the maximum limiting load for wear g)Determine the endurance strength for the teeth

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 pair of 20 pressure angle bevel gears of N , = 30 and N2 = 60 has a module m of 8.5 mm at the outside diameter . Determine the power capacity of the pair , using the Lewis and Buckingham equations . The gears have face width of 70 mm , K , = 1.5 , and the pinion rotates at 720 rpm . The gears are made of steel SAE 1040 and hardened to about 200 Bhn Hi sir this design machine
A 35 kW motor running at 1200 rpm drives a compressor at 780 rpm. The arrangement is made through a 90° bevel gearing arrangement. The pressure angle of teeth is 14.5°. The allowable static stress for both pinion and gear are 85 MPa. Determine the number of teeth on the gear, face width, addendum, dedendum, outside diameter and slant height, thickness of tooth. Also check your design from the standpoint of wear. Take surface endurance limit as 690 MPa and modulus of elasticity as 89 kN/mm2.
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 17-tooth 20° pressure angle spur pinion rotates at 1800 rev/min and transmits 4 hp to a 52-tooth disk gear. The diametral pitch is 10 teeth/in, the face width 1.5 in, and the quality standard is No. 6. 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 through-hardened core. The gear is steel, through-hardened also, grade 1 material, with a Brinell hardness of 200, tooth surface and core. Poisson's ratio is 0.30, Jp = 0.30, JG = 0.40, and Young's modulus is 30(10°) psi. The loading is smooth because of motor and load. Assume a pinion life of 108 cycles and a reliability of 0.90, and use YN = 1.3558N-0.0178, ZN = 1.4488N-0.023. The tooth profile is uncrowned. This is a commercial enclosed gear unit. (a) Find the factor of safety of the gears in bending. (b) Find the factor of safety of the gears in wear. (c) By examining the factors of safety, identify the threat to each gear and to the…
(b)A pair of straight bevel gears has a velocity ratio of 2:1. The pitch circle diameter of the pinion is 80 mm at the large end of the tooth.A5KW power is supplied to the pinion which rotates at 800 rp.m. The face width is 40 mm and the pressure angle is 20. Calculate the tangential ,radial and axial components of the resultant tooth force acting on the pinion
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 Design of Single Reduction Spur Gearbox An input shaft connected to the motor rotates at 1200 rpm, while the output speed must be 570 rpm. The contact force between the gears is transmitted through the pressure angle of 20°. The radial force is 321,90 kN. The material for both gear and pinion is 817M40. 1.1) select the suitable gear and pinion (make use of the Lewis formula). Then, do one set of calculations for single reduction gearbox
Q/A steel spur pinion and gear of grade 1 have a diametral pitch of 11 teeth/in , shaped profile teeth, 16 and 32 teeth, respectively, a 20. pressure angle, the pinion speed is 585 rev/min. The tooth properties are Sactual bending =20230 psi and the Brinell hardness is 210. For a design factor of 3, a face width of 0.85 in, what is the power due to bending and wear for pinion? Hint: - use "Shigleys Mechanical Engineering Design 8th Edition"
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
A 15 kW and 1200 motor drives a compressor at 300 a pair of spur gears having . The center-to-center distance between the shafts is 400 . The motor pinion is made of forged steel having an allowable static stress as 210 MPa, while the gear is made of cast steel having allowable static stress as 140 MPa . Assuming that the drive operates 8 to 10 hours per day under light conditions , find from the standpoint of strength Module , 2. Fare and 3. Number of teeth and pitch circle diameter of each gear 2. Check the gears thus designed from the consideration of Static tooth load or endurance strength of the tooth flexural endurance limil (sigma_{\epsilon}) may be taken as 400 MPa 3. Check the gears thus designed from the consideration of wear surface endurance limit ( sigma epsilon x ) may be taken 700 MPa b ^ pi ( 6.154 - 0512/pi; F_{N}
The gears of a gear wheel with a module of 4 mm, width of 60 mm and number of 18 teeth were broken during operation. If the gear wheel is made of cast iron (GG-25), with what torque is it loaded? Given: Speed factor Kv= 1.25; ku