(inch)

(mm)

1.2

1.5

2

2.5

3

3/4''

19.1

7/8''

22.2

1''

25.4

1-1/8''

28.6

1-1/4''

31.8

1-1/2''

38.1

40

45

2''

50.8

52

2-1/4''

57.15

2­-3/8''

60.3

2-1/2''

63.5

70

3''

76.2

85

3-1/2''

88.9

4''

101.6

4-1/8''

104.78

4-1/4''

107.95

4-1/2''

114.3

5-1/4''

133.35

6-1/4''

158.75

8-5/8''

219.08

＜25.40mm

+0.13mm

+10.00%

OD<101.60 mm+3.20mm

-0mm OD≥101.60 mm+4.80mm

-0mm

≥25.40mm~50.80mm

+0.20mm

≥50.80mm~76.20mm

+0.25mm

≥76.20mm~101.60mm

+0.38mm

≥101.60mm~139.70mm

+0.38mm

≥139.70mm~203.20mm

+0.76mm

≥203.20mm~304.80mm

+1.27mm