Tolerances

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Tolerances Water Lubricated Cutless (Sleeve) Bearings

Water Flow Rate: 2 GPM per inch of shaft

Replace Bearing: When 1/2 of water groove has been worn away.

Bearings Tolerances:
The following are the standards established by the US Navy, according to BuShips plan number 810-1385664:

Shaft or Sleeve Tolerances
Shaft or Sleeve Size (inches)			Shaft Clearance (inches)
3/4"	thru	1 3/8"	+.003	to	+.008
1 7/16"	thru	1 7/8"	+.004	to	+.010
2"	thru	2 3/8"	+.006	to	+.012
2 1/2"	thru	3"	+.007	to	+.014
3 1/8"	thru	3 3/4"	+.008	to	+.015
3 7/8"	thru	4 1/4"	+.010	to	+.017
4 3/8"	thru	4 7/8"	+.012	to	+.019
5"	thru	5 3/8"	+.015	to	+.023
5 1/2"	thru	5 7/8"	+.017	to	+.015
6"	thru	6 3/8"	+.020	to	+.029
6 1/2"	thru	6 7/8"	+.022	to	+.032
7"	thru	7 3/8"	+.024	to	+.034
7 1/2"	thru	7 3/8"	+.025	to	+.035
8"	thru	8 3/8"	+.027	to	+.037
8 1/2"	thru	8 7/8"	+.028	to	+.040
9"	thru	9 7/8"	+.030	to	+.042
10"	thru	10 7/8"	+.032	to	+.044
11"	thru	11 3/8"	+.034	to	+.048
11 1/2"	thru	12 3/4"	+.035	to	+.050
12 7/8"	thru	13 3/8"	+.037	to	+.052
13 1/2"	thru	14 1/2"	+.040	to	+.055
14 5/8"	thru	15"	+.042	to	+.058

Bearing OD Tolerances:
Bearing OD			Tolerance
1 1/4"	thru	2"	+.001	to	-.001
2"	thru	6"	+.002	to	-.001
6"	thru	7 1/2"	+.002	to	-.002
7 3/4"	thru	12"	+.005	to	-.005
12"	thru	16"	+.006	to	-.006
16"	thru	18"	+.008	to	-.008

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