FREE Pin with Two Loads Calculator

Shear Pins are common in day to day life. Cranes and aerial lifts use them extensively. A better choice is a double shear pin, but single shear does have it’s place. This simple calculator allows you to get the stresses on the pin and bearings quickly with out headaches.

Unlike other online calculators, this calculator allows for gaps and calculates the bending moments on the pin.

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Force, P1 ( lb)
Force, P2 ( lb)
d1 ( in)
t1 ( in)
t2 ( in)
t3 ( in)
t4 ( in)
w ( in)
Gap, g1 ( in)
Gap, g2 ( in)
Yield Stress, Pin ( ksi)
Force Area Stress
Pin Shear nan lb 0 in^2 nan psi
Bearing Area, t1 ( in^2) nan lb 0 in^2 nan psi
Bearing Area, t2 ( in^2) 0 lb 0 in^2 nan psi
Bearing Area, t3 ( in^2) 0 lb 0 in^2 nan psi
Bearing Area, t4 ( in^2) nan lb 0 in^2 nan psi
Section Modulus 0 in^3
Moment of Inertia 0 in^4
Effective Bending Length 0 in
Moment at T2 nan in-lb
Moment at T3 nan in-lb
Pin Stresses
Normal Stress nan psi
Principle Normal Stress nan psi nan DF
Principle Shear Stress nan psi nan DF
1. Loads P1 and P2 can be applied in opposite directions. Stresses are calculated at either T2 or T3 depending on which moment is higher.
2. A moment on the pin can be expressed as separating a couple into forces P1 and P2.

Corey Rasmussen

Corey is the Managing Director of the Mentored Engineer and owner of Rasmussen Designs. He received his BSME from Baylor University and holds a professional engineering license in North Carolina and Texas. He has been an engineer since 2002 with extensive experience in engineering design, fabrication and troubleshooting. He specializes in mobile equipment, hydraulic systems and machine design. He has two patents

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