www.jbj.co.uk/couplings.html #DriveLineHarmony ® SIT-LOCK 6 Internal Locking Device - Self-centring 25 Reusing the locking device When reusing the locking device, check all the surfaces are clean and show no obvious signs of deformation or seizing. Clean and oil all surfaces and threads. Check the screws have not been deformed. Oil the screws and assemble the locking device as originally supplied. M Screw tightening torque Nm s M Transmissible torque Nm t F Transmissible axial force kN ax P Pressure on shaft N/mm² w P Pressure on hub N/mm² n IMPORTANT: The screw tightening torque M can be reduced by 40% of the value indicated in the table. s M , F , P , P decrease proportionally. t ax w n For further information and larger diameters or dimensions different to those in the table, please contact the jbj Techniques Limited technical office, telephone: +44 (0)1737 767493 or email: info@jbj.co.uk ® SIT-LOCK 6 internal locking device - self-centring Dimensions [mm] Clamping screws DIN 912 12.9 Values with tolerances for shaft h8/hub H8 d x D H H H H Number Type 0 1 2 Ms [Nm] Mt [Nm] Fax [kN] Pw [N/mm²] Pn [N/mm²] 18 x 47 17 28 22 34 5 M6 14 331 37 318 120 19 x 47 17 28 22 34 5 M6 14 349 37 302 120 20 x 47 17 28 22 34 5 M6 14 367 37 287 120 22 x 47 17 28 22 34 5 M6 14 404 37 261 120 24 x 50 17 28 22 34 5 M6 14 441 37 239 115 25 x 50 17 28 22 34 6 M6 14 551 44 275 140 28 x 55 17 28 22 34 6 M6 14 617 44 246 125 30 x 55 17 28 22 34 6 M6 14 661 44 229 125 32 x 60 17 28 22 34 8 M6 14 940 59 287 150 35 x 60 17 28 22 34 8 M6 14 1.029 59 262 150 38 x 65 17 28 22 34 8 M6 14 1.117 59 241 140 40 x 65 17 28 22 34 8 M6 14 1.176 59 229 140 42 x 75 20 33 25 41 7 M8 35 2.069 99 311 175 45 x 75 20 33 25 41 7 M8 35 2.216 99 290 175 48 x 80 20 33 25 41 7 M8 35 2.364 99 272 160 50 x 80 20 33 25 41 7 M8 35 2.463 99 260 160 55 x 85 20 33 25 41 8 M8 35 3.096 113 271 175 60 x 90 20 33 25 41 8 M8 35 3.377 113 249 165 65 x 95 20 33 25 41 9 M8 35 4.116 127 258 175 70 x 110 24 40 30 50 8 M10 70 6.181 177 279 175 75 x 115 24 40 30 50 8 M10 70 6.623 177 260 170 80 x 120 24 40 30 50 8 M10 70 7.064 177 244 165 85 x 125 24 40 30 50 9 M10 70 8.444 199 258 175 90 x 130 24 40 30 50 9 M10 70 8.941 199 244 170 95 x 135 24 40 30 50 10 M10 70 10.486 221 257 180 100 x 145 26 44 32 56 8 M12 125 13.142 263 268 185 110 x 155 26 44 32 56 8 M12 125 14.456 263 244 175 120 x 165 26 44 32 56 9 M12 125 17.741 296 251 185 130 x 180 34 54 40 64 12 M12 125 25.626 394 237 170 140 x 190 34 54 40 68 9 M14 190 27.214 389 217 160 150 x 200 34 54 40 68 10 M14 190 32.398 432 225 170 160 x 210 34 54 40 68 11 M14 190 38.013 475 232 175 170 x 225 44 64 50 78 12 M14 190 44.061 518 184 140 180 x 235 44 64 50 78 12 M14 190 46.653 518 174 135 190 x 250 44 64 50 78 15 M14 190 61.556 648 206 155 200 x 260 44 64 50 78 15 M14 190 64.796 648 195 150
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