Type A "Low Speed" Shaft Seal Dimensions

Imperial Sizes

Shaft Diameter (A)	Stern Tube Diameter (B)	Approx Compressed Length (C)	D
3/4"	1-1/4", 1-1/2", 1-3/4", 2", 2-1/4", 2-1/2"	5.25"	2.375"
7/8"	1-1/4", 1-1/2", 1-3/4", 2", 2-1/4", 2-1/2"	5.25"	2.375"
1"	1-1/4", 1-1/2", 1-3/4", 2", 2-1/4", 2-1/2"	5.25"	2.375"
1-1/8"	1-1/4", 1-1/2", 1-3/4", 2", 2-1/4", 2-1/2"	5.25"	2.375"
1-1/4"	1-3/4", 2", 2-1/4", 2-1/2"	5.875"	2.875"
1-1/4"	2-3/4", 3", 3-1/4", 3-1/2"	7.375"	2.875"
1-3/8"	1-3/4", 2", 2-1/4", 2-1/2"	5.875"	2.875"
1-3/8"	2-3/4", 3", 3-1/4", 3-1/2"	7.375"	2.875"
1-1/2"	2", 2-1/4", 2-1/2", 2-3/4", 3", 3-1/4", 3-1/2"	7.25"	3.75"
1-1/2"	3-3/4", 4"	7.655"	3.75"
1-3/4"	3-3/4", 4"	7.655"	3.75"
1-3/4"	2", 2-1/4", 2-1/2", 2-3/4", 3", 3-1/4", 3-1/2"	7.25"	3.75"

Metric Sizes (mm)

Shaft Diameter (A)	Stern Tube Diameter (B)	Approx. Compressed Length (C)	D
20	30, 40, 45, 50, 60	133	61
22	30, 40, 45, 50, 60	133	61
25	30, 40, 45, 50, 60	133	61
25	65	149	61
28	30, 40, 45, 50, 60	133	61
28	65	149	61
30	30, 40, 45, 50, 60	133	61
30	65	149	61
32	45, 50, 60, 65	149	73
32	70, 80, 85, 90	187	73
35	45, 50, 60, 65	149	73
35	70, 80, 85, 90	187	73
38	50, 60, 65, 70, 75, 80, 85, 90	184	96
38	95, 100	194	96
40	50, 60, 65, 70, 75, 80, 85, 90	184	96
40	95, 100	194	96
45	50, 60, 65, 70, 75, 80, 85, 90	184	96
45	95, 100	194	96