METHOD
How it works
Oil seal reference size = shaft diameter × housing bore × seal width.
Note
Reference values for sizing. Manufacturer ranges, tolerances and standard variants can differ; verify the product datasheet before ordering.
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Oil Seal Size Finder
Measure the shaft, housing bore and seal width. Calcori returns the standard d × D × b size notation in millimetres and inches.
Reference size20 × 35 × 7 mm
Inches0.787 × 1.378 × 0.276 in
Reference sizing only. Manufacturer ranges and tolerances vary; verify the product datasheet before ordering.