ID1 Max. Bore Max. Bore Weight Size Standard Shallow L FL P SL OD T HD OAL G R Flange Keyway Keyway in in in in in in in UNC in in in in lbs 5S 1.188 1.250 1.34 0.59 0.45 0.29 3.250 ¹⁄ - 20 1.88 2.81 0.75 0.97 1.1 6S 1.438 1.500 1.64 0.78 0.53 0.29 4.000 ⁵⁄ - 18 2.50 3.50 0.88 1.09 1.9 - 1.750 1.64 0.78 0.53 - 4.000 - 2.50 3.50 0.88 1.09 1.8 7S 1.625 1.875 1.84 0.78 0.69 0.35 4.625 ³⁄ - 16 2.81 3.94 1.00 1.31 2.6 8S 1.938 2.250 2.10 0.88 0.75 0.38 5.450 ³⁄ - 16 3.25 4.39 1.13 1.50 4.4 - 2.375 1.94 0.88 1.03 - 5.450 - 3.25 4.95 1.13 1.50 3.7 9S 2.375 2.500 2.41 1.03 0.78 0.41 6.350 ¹⁄ - 13 3.63 5.06 1.44 1.75 6.5 - 2.875 2.28 1.03 1.25 - 6.350 - 4.13 6.00 1.44 1.75 6.2 10S 2.750 3.125 2.70 1.22 0.81 0.41 7.500 ¹⁄ - 13 4.38 5.69 1.63 2.00 10.5 - 3.375 2.70 1.22 0.81 - 7.500 - 4.75 5.69 1.63 2.00 9.8 11S 3.375 3.625 3.44 1.50 1.13 0.56 8.625 ¹⁄ - 13 5.25 7.13 1.88 2.38 16.6 - 3.875 3.06 1.50 1.56 - 8.625 - 5.63 8.00 1.88 2.38 16.4 12S 2.875 - 4.00 1.69 1.28 0.63 10.000 ¹⁄ - 13 4.88 8.25 2.31 2.69 27.5 3.875 3.938 4.00 1.69 1.28 - 10.000 - 5.75 8.25 2.31 2.69 26.6 13S 4.500 - 4.38 1.97 1.31 0.81 11.750 ⁵⁄ - 11 6.75 9.25 2.69 3.06 45.0 14S 5.000 - 4.50 2.25 1.06 0.62 13.875 ⁵⁄ - 11 7.50 9.88 3.25 3.50 69.0 16S 5.500 6.000 6.00 2.75 2.00 1.00 18.875 ⁵⁄ - 11 8.00 14.50 4.75 4.25 125.0 Mechanical Power Transmission S-Flex Couplings Dimensional Data 15 www.jbj.co.uk/s-flex-couplings.html S Type Dimensional Data Note Spacing between shafts should be greater than 1/8 inch and less than OAL minus the sum of the two bore dimensions. See page 9 for Performance Data. The sizes with two dimensions listed indicate measurements for standard flanges (1st Line) and modified spacer flanges (2nd Line). See page 20. To determine shaft separation (BSE, use the formula BSE = OAL - (2 x L). Dimensions Inches S Type Flanges » S flanges are made of high strength cast iron and are bored to size for a slip fit on standard shafts. » S flanges are easy to install, are readily available from stock in a wide range of popular bore sizes, and are supplied with two set screws at 90°. S Type Couplings » S Type couplings, normally supplied with the two-piece E sleeve, can be used with any JE, JN, N, H, or HS sleeves. #DriveLineHarmony
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