interference fit calculator: press, force & shrink fits

Temp Mode:
Units:

Shaft (Inside Part)

CTE: 6.5 x 10^-6 in/in/°F
in
°F

Collar / Hub (Outside Bore)

CTE: 6.5 x 10^-6 in/in/°F
in
°F

Interactive Fit Visualizer

Interference
Schematic diagram exaggerates the gap or overlap for visibility. Yellow represents the shaft, gray represents the collar, and green/red highlights the gap or interference zone.
Shaft Target Size 1.0000 in (±0.0000)
Collar Target Size 0.9985 in (±0.0000)
Clearance / Interference at Temp 0.0015 in (interference)

Calculated Fit Class (at Room Temp)

H7/p6 Medium Press Fit

Standard press fit for gears, shafts, and pulleys. Secure, permanent torque transmission without keys.