Outer diameter is 25mm (If it\'s not enough info then please just show me the pr

Question

Outer diameter is 25mm (If it's not enough info then please just show me the process of how it's done)

Consider the assembly in Fig. 2. A steel bushing (McMaster part# 8486A96) is press fit into a hole drilled in an aluminum plate. A stainless-steel precision shaft (McMaster part# 6459K.69) slides through the steel bushing. What is the tolerance of the precision shaft given in the McMaster catalogue (your answer needs to be in the following format e.g. 75k7, 85H9)? Tolerance of the precision shaft the shaft is paired with the stainless-steel bushing. What is the tolerance of the inner diameter (ID) of the bushing, given in the McMaster catalogue (your answer needs to be in the following format e.g. 75k7, 85H9)? Tolerance of the inner diameter of the bushing the outer diameter of the bushing (OD) needs to be press fit in an aluminum plate. What is the tolerance of the OD of the bushing (your answer needs to be in the following format e.g. 75k7, 85H9)? Assuming a unit bore system, which tolerance would you require on the drilling/reaming of the hole in the aluminum plate that fits the bushing OD? Use preferred fits, and calculate the resulting minimum and maximum clearance values. ME EN 3000 Design of Mechanical Elements Spring 2017 Tolerance of the outer diameter of the bushing Tolerance you selected on the drilling/reaming of hole Resulting maximum and minimum clearance values of the selected tolerance pair

Explanation / Answer

Shaft diameter =25 mm to 24.987 mm( 25h6)

Bushing ID=25G7 (considering precission running sliding) as per tolerance

Bush OD can be chose as =(2 *25) =50mm( considering 2 times shaft diameter & other data torque is not

available so shear stress can be check in the bush)

so Bush OD =50h6

Aluminium plate hole dia=50P7 (from tolerance table)

=49.979mm to 49.949 mm

Bush OD=50h6

=49.986 mm to 50 mm (From tolerance table)

maximum clearence=.051 mm

minimum clearence=0.007mm

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