WST Series Spirolox® Medium/Heavy Duty Rings External Continued Smalley Part Number Shaft Carbon Steel WST-312 WST-315 WST-325 WST-334 WST-343 WST-350 WST-354 WST-362 WST-368 WST-375 WST-387 WST-393 WST-400 WST-425 WST-437 WST-450 WST-475 WST-500 WST-525 WST-550 WST-575 WST-600 WST-625 WST-650 WST-675 WST-700 WST-725 WST-750 WST-775 WST-800 WST-825 WST-850 WST-875 WST-900 WST-925 WST-950 WST-975 WST-1000 Add Suffix 302 SS -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 -S02 316 SS -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 -S16 Diameter in 3.125 3.156 3.250 3.344 3.437 3.500 3.543 3.625 3.687 3.750 3.875 3.938 4.000 4.250 4.375 4.500 4.750 5.000 5.250 5.500 5.750 6.000 6.250 6.500 6.750 7.000 7.250 7.500 7.750 8.000 8.250 8.500 8.750 9.000 9.250 9.500 9.750 10.000 mm 79.38 80.16 82.55 84.94 87.30 88.90 89.99 92.08 93.65 95.25 98.43 100.03 101.60 107.95 111.13 114.30 120.65 127.00 133.35 139.70 146.05 152.40 158.75 165.10 171.45 177.80 184.15 190.50 196.85 203.20 209.55 215.90 222.25 228.60 234.95 241.30 247.65 254.00 Inside Diameter (in) 2.957 2.986 3.075 3.164 3.254 3.315 3.356 3.433 3.490 3.550 3.670 3.730 3.787 4.032 4.162 4.280 4.515 4.755 4.995 5.229 5.466 5.705 5.942 6.182 6.420 6.658 6.894 7.130 7.368 7.607 7.845 8.083 8.321 8.560 8.798 9.036 9.273 9.508 Ring Radial Wall (in) .188 .188 .188 .188 .188 .250 .250 .250 .250 .250 .250 .250 .250 .250 .250 .250 .250 .250 .375 .375 .375 .375 Three-Turn .312 .312 .312 .312 .312 .375 .375 .375 .375 .375 .375 .375 .375 .375 .375 .375 Thickness (in) .093 .093 .093 .093 .093 .111 .111 .111 .111 .111 .111 .111 .111 .111 .111 .111 .111 .111 .127 .127 .127 .127 .165 .165 .165 .165 .165 .189 .189 .189 .189 .189 .189 .189 .189 .189 .189 .189 Groove Diameter (in) 2.980 3.010 3.100 3.190 3.280 3.340 3.381 3.458 3.517 3.577 3.696 3.756 3.815 4.065 4.190 4.310 4.550 4.790 5.030 5.265 5.505 5.745 5.985 6.225 6.465 6.705 6.942 7.180 7.420 7.660 7.900 8.140 8.383 8.620 8.860 9.100 9.338 9.575 Width (in) .103 .103 .103 .103 .103 .120 .120 .120 .120 .120 .120 .120 .120 .120 .120 .120 .120 .120 .139 .139 .139 .139 .174 .174 .174 .174 .174 .209 .209 .209 .209 .209 .209 .209 .209 .209 .209 .209 Retaining Rings Thrust Capacity Groove Yield1 (lb) 16,130 16,290 17,230 18,200 19,190 19,790 20,290 21,520 22,150 23,060 24,650 25,330 26,300 27,940 28,760 30,220 33,580 37,110 40,820 45,880 49,990 54,290 58,760 63,410 68,230 73,230 78,290 84,820 90,390 96,130 102,050 108,150 113,800 120,870 127,500 134,300 141,970 150,560 Ring Shear2 (lb) 36,520 36,880 37,980 39,080 40,170 48,820 49,420 50,560 51,430 52,310 54,050 54,930 55,800 59,280 61,030 62,770 66,260 69,740 83,790 87,780 91,770 95,760 129,590 134,780 139,960 145,140 172,190 178,130 184,070 190,000 195,940 201,880 207,820 213,750 219,690 225,630 231,570 237,500 1 2 Based on a groove material yield strength of 45,000 psi and a safety factor of 2. Based on a safety factor of 3. smalley.com • 847.719.5900 Order Online Easy Customization 100 +.000/-.070 +.000/-.070 +.000/-.060 +.000/-.050 +.000/-.040 +.000/-.030 ±.006 ±.006 ±.005 ±.005 ±.004 ±.003 ±.008 ±.007 ±.006 +.008/-.000 +.006/-.000 +.005/-.000
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