A right angled bell-crank is designed to raise a load of 5kN at short arm whose length is 100mm. Also longer arm is of length 500mm. If permissible bearing pressure on pin is 10N/mm² and diameter of the 20mm, find the length of the pin.

← Prev Question Next Question →

Please log in or register to answer this question.

Related questions

0 votes

0 answers

A right angled bell-crank is designed to raise a load of 5kN at short arm whose length is 100mm. Also longer arm is of length 500mm. If permissible bearing pressure on pin is 10N/mm² and diameter of the 20mm, find the shear stress in the pin.

asked Jan 25 in Machine Design by Carter (89.5k points)

0 votes

0 answers

A right angled bell-crank is designed to raise a load of 5kN at short arm whose length is 100mm. Longer arm is of length 500mm. Calculate the reaction or force acting on the fulcrum.

asked Jan 25 in Machine Design by Carter (89.5k points)

+1 vote

1 answer

The distance between fulcrum and dead weights is 100mm. Dead weights are of 2945.2N. An effort of 294.52N acts on the other hand. Find the distance between the fulcrum and other end of the lever.

asked Jan 22 in Machine Design by Carter (89.5k points)

0 votes

0 answers

Leverage is the ratio of load arm to effort arm.

asked 1 day ago in Machine Design by Carter (89.5k points)

0 votes

0 answers

If for a curved beam of trapezoidal cross section, radius of neutral axis is 89.1816mm and radius of centroidal axis is 100mm, then find the bending stress at inner fibre whose radius is 50mm. Area of cross section of beam is 7200mm² and the beam is loaded with 100kN of load.

asked Jan 25 in Machine Design by Carter (89.5k points)

0 votes

0 answers

If a body is subjected to stresses in xy plane with stresses of 60N/mm² and 80N/mm² acting along x and y axes respectively. Also the shear stress acting is 10N/mm². Find the inclination of the plane in which shear stress is maximal.

asked 1 day ago in Machine Design by Carter (89.5k points)

+1 vote

1 answer

If any cross section is subjected to direct tensile stress and bending stress, then find the dimension of cross section. Given length & breadth are t and 2t respectively. F=25kN acts on the top fibre of the cross section, M=F x t . Also maximum allowable tensile stress =100N/mm².

asked Jan 23 in Machine Design by Carter (89.5k points)

+1 vote

1 answer

If knuckle joint is to fail by crushing failure of pin in fork, then determine the diameter of knuckle pin when 50kN axial tensile force act on rods. Given: Max allowable compressive stress=25N/mm², thickness of each eye of fork=25mm.

asked Jan 22 in Machine Design by Carter (89.5k points)

0 votes

0 answers

Mechanical advantage is the ratio of effort to load.

asked 1 day ago in Machine Design by Carter (89.5k points)

+1 vote

1 answer

Calculate the diameter of pin from shear consideration with maximum shear stress allowed is 40NN/mm² and an axial tensile force of 50kN is acting on the rod.

asked Jan 23 in Machine Design by Carter (89.5k points)

0 votes

0 answers

If a body is subjected to stresses in xy plane with stresses of 60N/mm² and 80N/mm² acting along x and y axes respectively. Also the shear stress acting is 20N/mm². Find the minimum normal stress.

asked Jan 25 in Machine Design by Carter (89.5k points)

0 votes

0 answers

A plate clutch consists of 1 pair of contacting surfaces. The inner and outer diameter of the friction disk is 100mm and 200mm respectively. The coefficient of friction is 0.2 and permissible intensity of pressure is 1.5N/mm². Assuming uniform wear theory, calculate the power transmitting capacity of the clutch at 80rad/s.

asked 1 day ago in Machine Design by Carter (89.5k points)

0 votes

0 answers

A machine vice whose length of the handle is 150mm and the coefficient of friction for thread and collar are 0.15 and 0.17 respectively has a force applied at handle of 125N. Also the outer and inner diameters of collar are 55mm and 45mm respectively. Find the screw torque in terms of clamping force W if nominal diameter=22mm and pitch=5mm.

asked 1 day ago in Machine Design by Carter (89.5k points)

0 votes

0 answers

A machine vice whose length of the handle is 150mm and the coefficient of friction for thread and collar are 0.15 and 0.17 respectively has a force applied at handle of 125N. Also the outer and inner diameters of collar are 55mm and 45mm respectively. Find the overall efficiency if nominal diameter=22mm and pitch=5mm.

asked Jan 27 in Machine Design by Carter (89.5k points)

+1 vote

1 answer

A machine vice whose length of the handle is 150mm and the coefficient of friction for thread and collar are 0.15 and 0.17 respectively has a force applied at handle of 125N. Also the outer and inner diameters of collar are 55mm and 45mm respectively. Find the clamping force W if nominal diameter=22mm and pitch=5mm.

asked Jan 23 in Machine Design by Carter (89.5k points)

+1 vote

1 answer

A machine vice whose length of the handle is 150mm and the coefficient of friction for thread and collar are 0.15 and 0.17 respectively has a force applied at handle of 125N. Also the outer and inner diameters of collar are 55mm and 45mm respectively. Find the collar torque in terms of clamping force W assuming uniform wear theory if nominal diameter=22mm and pitch=5mm.

asked Jan 23 in Machine Design by Carter (89.5k points)

0 votes

0 answers

A plate clutch consists of 1 pair of contacting surfaces. The inner and outer diameter of the friction disk is 100mm and 200mm respectively. The coefficient of friction is 0.2 and permissible intensity of pressure is 1.5N/mm². Assuming uniform wear theory, calculate the operating force in the clutch.

asked Jan 27 in Machine Design by Carter (89.5k points)

0 votes

0 answers

A plate clutch consists of 1 pair of contacting surfaces. The inner and outer diameter of the friction disk is 100mm and 200mm respectively. The coefficient of friction is 0.2 and permissible intensity of pressure is 1.5N/mm². Assuming uniform pressure theory, calculate the operating force in the clutch.

asked Jan 23 in Machine Design by Carter (89.5k points)

+1 vote

1 answer

A plate clutch consists of 1 pair of contacting surfaces. The inner and outer diameter of the friction disk is 100mm and 200mm respectively. The coefficient of friction is 0.2 and permissible intensity of pressure is 1.5N/mm². Assuming uniform wear theory, calculate the torque transmitting capacity of the clutch.

asked Jan 23 in Machine Design by Carter (89.5k points)

0 votes

0 answers

How many classes of levers are there?

asked Jan 27 in Machine Design by Carter (89.5k points)

0 votes

0 answers

If a body is subjected to stresses in xy plane with stresses of 60N/mm² and 80N/mm² acting along x and y axes respectively. Also the shear stress acting is 20N/mm²Find the maximum amount of shear stress to which the body is subjected.

asked Jan 27 in Machine Design by Carter (89.5k points)

+1 vote

1 answer

Determine the secondary shear stress acting on the bolt 3 and its direction. The bolts are equidistant having separated by 60mm and the margin to the left and right is 25mm.Also P=5kN acts at a distance of 200mm from the channel.

asked Jan 23 in Machine Design by Carter (89.5k points)

+1 vote

1 answer

A flange of radius 200mm is fastened to the machine screw by means of four cap screws of pitch circle radius 150mm. The external force P is 20kN which is loaded at 160mm from the machine screw. There are two dowel pins to take shear load. Determine the core diameter of cap screw if permissible tensile stress in cap screw is 40N/mm².

asked Jan 23 in Machine Design by Carter (89.5k points)

0 votes

0 answers

Calculate the diameter of the rivets if permissible shear stress is 60N/mm². Bolts are separated by 100mm and force P=30kN.

asked Jan 25 in Machine Design by Carter (89.5k points)

+1 vote

1 answer

Calculate the shaft diameter on rigidity basis if torsional moment is 196000N-mm, length of shaft is 1000mm. Permissible angle of twist per meter is 0.5’ and take G=79300N/mm².

asked Jan 22 in Machine Design by Carter (89.5k points)

...