9. Design a spur gear drive required to transmit 45 kW at a pinion speed of 800 r.p.m. The velocity ratiois 3.5 : 1. The teeth are 20° full-depth involute with 18 teeth on the pinion. Both the pinion and gearare made of steel with a maximum safe static stress of 180 MPa. Assume a safe stress of 40 MPa forthe material of the shaft and key.10. Design a pair of spur gears with stub teeth to transmit 55 kW from a 175 mm pinion running at 2500r.p.m. to a gear running at 1500 r.p.m. Both the gears are made of steel having B.H.N. 260. Approximatethe pitch by means of Lewis equation and then adjust the dimensions to keep within the limits set bythe dynamic load and wear equation.

Answered: 9. Design a spur gear drive required to…

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 iron cast gears connecting two shafts at the Angle of the elbow. The diameter of the pinion pitch and the gear is 80 mm and 100 mm. The shape of the gear gear was 14 restriction form. The static voltage allowed for both gear is 55 mpa. If the door transports to 2.95 kw power at the turn of 1200 RPM, identify the module and the number of teeth on each gear from the Angle of power and check the design from the Angle of the tear. Take the surface durability limit is 630 mpa and the modulus elasticity to iron cast is 84 kn /mm2.
4. G A micarta pinion rotating at 1200 r.p.m. is to transmit 1 kW to a cast iron gear at a speed of 192 r.p.m. Assuming a starting overload of 20% and using 20° full depth involute teeth, determine the module, number of teeth on the pinion and gear and face width. Take allowable static strength for micarta as 40 MPa and for cast iron as 53 MPa. Check the pair in wear.
PROBLEM 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 ½ 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
Q2 A commercial enclosed gear drive is to be designed. Initially, the following is specified. The drive is to transmit 9.6 kW with an input pinion speed of 350 rev/min. The drive is to consist of two spur gears, with a 20° pressure angle, and the pinion is to have 20 teeth driving a 64-tooth gear. The pinion is made to be Grade 1 nitraded though hardened steel at 254 Brinell. The gear is made to be Grade 3 carburized and hardened steel at 284 Brinell. Both gears made to No. 6 quality standards. The gears will be uncrowned, centered on their shafts between bearings. A pinion life of 19232 cycles is desired, with a 99.99 per cent reliability. Analysis gears stress (bending and pitting) according to the AGMA approach and the corresponding factor of safety.
Hi, please help me with the solution of this problem exercise. Thank you. Your help will be appreciated The Lmax = 4.0 in is the anwer.
Gear 2 (pinion) runs at 1800 rpm ccw and transmits 3.5 kW to frictionless, idler gear 3. The pressure angle is 20° with a module = 2 mm. Determine the following: a. Draw the free body diagram for the gear set. b. Pitch diameters of each gear. 50T of m b. 3 30T - 20T C. Transmitted load on gear 2. d. Torque on gear 2 shaft a. e. Tangential and radial force from gear 2 shaft. f. Tangential and radial forces on gear 4. g. Torque on gear 4 shaft c.
3. A pair of 20° full-depth involute tooth spur gears is to transmit 30 kW at a speed of 250 r.p.m. of the pinion. The velocity ratio is 1:4. The pinion is made of cast steel having an allowable static stress, o, = 100 MPa, while the gear is made of cast iron having allowable static stress, o,= 55 MPa. The pinion has 20 teeth and its face width is 12.5 times the module. Determine the module, face width and pitch diameters of both the pinion and gear from the standpoint of strength only taking velocity factor into consideration. The tooth form factor is given by the expression 0.912 0.154 – y = No. of teeth and velocity factor is given by 3 where v is the peripheral speed of the gear in m/s. 3+ v
please help
Helical Gears, Bevel Gears, and Wormgearing 2
2. A spur gear made of bronze drives a mid steel pinion with angular velocity ratio of 3, : 1. The pressure angle is 142. It transmits 5 kW at 1800 r.p.m. of pinion. Considering only strength, design the smallest diameter gears and find also necessary face width. The number of teeth should not be less than 15 teeth on either gear. The elastic strength of bronze may be taken as 84 MPa and of steel as 105 MPa. Lewis factor for 142 pressure angle may be taken as 0.684 0.124 - y = No. of teeth
Don't give handwritten
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

SEE MORE QUESTIONS

Recommended textbooks for you

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Control Systems Engineering

Mechanical Engineering

ISBN:

9781118170519

Author:

Norman S. Nise

Publisher:

WILEY

Mechanics of Materials (MindTap Course List)

Mechanical Engineering

ISBN:

9781337093347

Author:

Barry J. Goodno, James M. Gere

Publisher:

Cengage Learning

Engineering Mechanics: Statics

Mechanical Engineering

ISBN:

9781118807330

Author:

James L. Meriam, L. G. Kraige, J. N. Bolton

Publisher:

WILEY

SEE MORE TEXTBOOKS