Press Fit Pressure Calculator

Press Fit Calculator v 2.1

Shaft Young's Modulus, Ei (Gpa) Poisson's Ratio, νi Shaft Internal Diameter, di (mm) Shaft Nominal Diameter, d (mm) Shaft Upper Tolerance (mm) Shaft Lower Tolerance (mm) Shaft Maximum Diameter (mm) Shaft Minimum Diameter (mm)

210.0 0.292 0.000 60.000 0.030 0.011 60.030 60.011

Hub Young's Modulus, Eo (Gpa) Poisson's Ratio, νo Hub Outer Diameter, do (mm) Hole Nominal Diameter, d (mm) Hole Upper Tolerance (mm) Hole Lower Tolerance (mm) Hole Maximum Diameter (mm) Hole Minimum Diameter (mm)

210.0 0.292 100.00 60.000 0.019 0.000 60.019 60.000

Pressure Generated between Shaft and Hub Maximum Radial Interference, δmax (mm)

0.0150

Max Pressure Generated, pmax (MPa)

33.6

Force Required to Engage/Disengage Shaft and Hub Width of Hub, w (mm) 10.00 Friction Between Shaft and Hub, μ 0.30 2 1,885 Area of Contact, A (mm ) Force Required, F (N) 19,000 A MEADinfo Product

Calculate pressure generated and force to engage/disengage - H6m6 fit example - Click on the image to download the calcula

Interference and Transition fits can be used effectively connect machine elements. This calculator uses following for generated with the designed connection. This data then can be used to optimize the design of the hub/shaft, or can be used to find the force to engage and dis used to find the maximum torque this connection can transmit without slippage. Above example shows a transition fit of H6/m6 between shaft and hub. To find tolerances for different fits refer Tolerance Table for Regularly Used Fits For calculating minimum force to engage or disengage these parts we can use the following formula F = μ . pmax . A

Where μ is the friction between hub and shaft, A is the area of contact between shaft and hub. To calculate maximum torque which can be transmitted without slip can be found using following formula T = F . d/2

he image to download the calculator

his calculator uses following formula to find the pressure find the force to engage and disengage these parts, or can be

lowing formula

ing following formula