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� s�,,..�.,� � ;�A LAS,w <br /> �DONN.R16HT.SOLIO. TCNONGING NISiORY <br /> Chance�Square Shaft(SS)Helical Section Properties <br /> Table 7-4 <br /> SHAFT WALL METAL MOMENT OF SECTION MODULUS <br /> PRODUCT PERIMETER INERTIA in cm <br /> SIZE THICKNESS AREA a a <br /> SERIES in mm in mm in2 Icm2 m�cm) in (cm) <br /> � � � � \ � Ix-z.� .�x- Sx'x SriY �-Y <br /> SS125 125(32) solid 1.55(10.0) 4.79(12.17) 0.20(8.3) 0.32(5.3) 0.24(3.9) <br /> SS1375 1.375(35) solid 1.88(12.1) 5.29(13.4) 0.29(12.1) 0.42(6.9) 0.32(5.2) <br /> SS5 1.5(38) solid 2.2(14.2) 5.6(142) 0.40(16.5) 0.53(8.7) 0.42(6.9) <br /> SS150 1.5(38) solid 2.2(14.2) 5.6(14.2) 0.40(16.5) 0.53(8.7) 0.42(6.9) <br /> SS175 1.75(44) solid 3.1 (19.4) 6.6(16.7) 0.75(31.1) 0.85(13.9) 0.66(10.8) <br /> SS200 2(51) solid 3.9(25.3) 7.5(18.9) 1.26(52.4) 1.26(20.6) 0.98(16.1) <br /> SS225 2.25(57) solid 5.0(32.1) 8.5(21.5) 2.04(84.9) 1.81 (29.7) 1.40(22.9) <br /> Chance°Square Shaft(SS)Helix Thickness and Mechanical Strength <br /> Table 7-5 <br /> DEFAULT(STANDARD) OPTIONS <br /> Mechanical Mechanical <br /> Helix Grade Thickness Helix Grade Thickness <br /> Product Series Strength SVength <br /> ksi(mPa) in(mm) ki kN ksi(mPa) in(mm) ki kN <br /> SS125 50(345) 3/S(9.5) 30(133) 50(345) '/�(13) 35(156) <br /> SS1375 50(345) 3/8(9.5) 30(133) 50(345) Y:(13) 35(156) <br /> 50(345) '/:(13) 45(200) <br /> SS5 50(345) 3/8(9.5) 40(178) 80(552) 3/8(9.5) 40(178) <br /> 80(552) Yz(13) 50(222) <br /> SS150 80(552) 3/8(9.5) 40(178) 50(345) Y:(13) 45(200) <br /> SS175 SO(552) 3/8(9.5) 50(222) 80(552) Yz(13) 60(267) <br /> ss2oo 80(552) v��is> so�2s�� <br /> SS225 80(552) Yz(13) 60(267) <br /> The mechanical strength ratings in Table 7-5 are minimum values. The helix diameter, grade, and <br /> thickness along with the shaft series to which an individual helix is connected effect the mechanical <br /> strength rating of a helix. A higher mechanical strength rating of an individual helix is possible depending <br /> on the combination of these variables. <br /> O 2006,Hubbell Power Systems,Inc. PRODUCT DRAWINGS AND RATINGS v1.0 <br /> All Rights Reserved 7-23 Oct/2006 <br />