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Snow blower Stanley SS30

Type :Dual Stage

Maximum RPM: 3600

Torque : 21.56 Nm

Impeller Diameter :16" inch

Auger Diameter:16" inch

CC: 302

Tire Size : 16" * 6.5

I do not know the gear ratio : if assume its 12:1

Gear output torque will be 258.72 Nm

Assume the Shaft diameter = 44 mm=0.044m

shear force=(pi *d^2/2)∗ shear strength of the material ( for double shear)

shear force = (pi * 12^2/2)∗186

shear force = 42072 N

M = shear force * L

M= 42072* 0.044

M = 1851.168 Nm

why i am getting so value for the shear pin because the maximum output torque is just 258.72 so the shear pin should break before this value isn't it?

Assume the Shaft diameter = 44 mm=0.044m

shear force=(pi *d^2/2)∗ shear strength of the material ( for double shear)

shear force = (pi * 12^2/2)∗186

shear force = 42072 N

M = shear force * L

M= 42072* 0.044

M = 1851.168 Nm

why i am getting so value for the shear pin because the maximum output torque is just 258.72 so the shear pin should break before this value isn't it?

Type :Dual Stage

Maximum RPM: 3600

Torque : 21.56 Nm

Impeller Diameter :16" inch

Auger Diameter:16" inch

CC: 302

Tire Size : 16" * 6.5

I do not know the gear ratio : if assume its 12:1

Gear output torque will be 258.72 Nm

## Homework Equations

Assume the Shaft diameter = 44 mm=0.044m

shear force=(pi *d^2/2)∗ shear strength of the material ( for double shear)

shear force = (pi * 12^2/2)∗186

shear force = 42072 N

M = shear force * L

M= 42072* 0.044

M = 1851.168 Nm

why i am getting so value for the shear pin because the maximum output torque is just 258.72 so the shear pin should break before this value isn't it?

## The Attempt at a Solution

Assume the Shaft diameter = 44 mm=0.044m

shear force=(pi *d^2/2)∗ shear strength of the material ( for double shear)

shear force = (pi * 12^2/2)∗186

shear force = 42072 N

M = shear force * L

M= 42072* 0.044

M = 1851.168 Nm

why i am getting so value for the shear pin because the maximum output torque is just 258.72 so the shear pin should break before this value isn't it?

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