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Rim and Face Allignment
- Thread starter P.K.P
- Start date
"Wagon Wheel method" by Westinghouse
It addresses the face or gap from the top of the coupling
A = coupling diameter
B = Length from coupling face to first foot / pad
C = Length from coupling face to rear foot / pad
Example: Closing a coupling gap .004".
A = 21"
B = 17"
C = 44"
(17/21)*.004 = .003" front foot correction
(44/21)*.004 = .008" rear foot correction
You have to correct both feet at the same time to rotate the coupling into alignment. Only doing one foot will cause issues.
This only corrects angularity. It will not correct for any offset of the equipment.
You can add as many feet or pads as necessary.
It addresses the face or gap from the top of the coupling
A = coupling diameter
B = Length from coupling face to first foot / pad
C = Length from coupling face to rear foot / pad
Example: Closing a coupling gap .004".
A = 21"
B = 17"
C = 44"
(17/21)*.004 = .003" front foot correction
(44/21)*.004 = .008" rear foot correction
You have to correct both feet at the same time to rotate the coupling into alignment. Only doing one foot will cause issues.
This only corrects angularity. It will not correct for any offset of the equipment.
You can add as many feet or pads as necessary.
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