CT20

Tolerances
Part Inches Millimeters
Min. Max. Min. Max.

Back plate
Piston ring bore diameter 0,4980 0,4984 12,6490 12,6590

Bearing housing
Piston ring bore diameter 0,7086 0,7090 17,9980 18,0090
Bearing bore diameter 0,6300 0,6303 16,0020 16,0100

Shaft and wheel
Piston ring groove width 0,0646 0,0665 1,6400 1,6900
Journal diameter 0,3932 0,3935 9,9870 9,9950

Thrusth spacer
Piston ring groove width 0,0484 0,0504 1,2300 1,2800