www.jbj.co.uk/couplings.html #DriveLineHarmony ® SIT-LOCK 4 Internal Locking Device - Self-centring 17 Removal Gradually loosen the clamping screws and remove them from the locking device. Insert the screws into the front tapered bush removal threads and tighten them in a ‘criss-cross’ sequence until the front cone is completely removed. Do not tighten the screws to a value greater than the M tightening torque indicated s in the table. Insert the screws into the extraction threads of the outer ring’s central flange and tighten them in a ‘criss-cross’ sequence until the rear tapered bush is fully removed. Do not tighten the screws to a value greater than the M tightening torque indicated in the table. s Reusing the locking device When reusing the locking device, check all the surfaces are clean and show no obvious signs of deformation or seizing. Oil all surfaces and threads. Check the screws have not been deformed. Oil the screws and reinstall the components in their original places. 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 Dimensions [mm] Clamping screws DIN 912 12.9 Values with tolerances for shaft h8/hub H8 d x D H H H Number Type 1 2 Ms [Nm] Mt [Nm] Fax [kN] Pw [N/mm²] Pn [N/mm²] 25 x 50 41 45 51 6 M6 17 849 68 176 85 28 x 55 41 45 51 8 M6 17 1.268 90 209 105 30 x 55 41 45 51 8 M6 17 1.358 90 195 105 35 x 60 41 45 51 8 M6 17 1.585 90 167 95 38 x 65 41 45 51 8 M6 17 1.721 90 154 90 40 x 65 41 45 51 10 M6 17 2.264 113 183 110 42 x 75 41 45 53 8 M8 41 3.514 167 258 140 45 x 75 41 45 53 8 M8 41 3.888 167 130 150 48 x 80 58 62 70 8 M8 41 4.016 167 159 95 50 x 80 58 62 70 8 M8 41 4.183 167 153 95 55 x 85 58 62 70 8 M8 41 4.602 167 139 90 60 x 90 58 62 70 10 M8 41 6.275 209 159 105 65 x 95 58 62 70 10 M8 41 6.798 209 147 100 70 x 110 70 76 86 10 M10 83 11.624 332 180 110 75 x 115 70 76 86 10 M10 83 12.455 332 168 105 80 x 120 70 76 86 12 M10 83 15.942 399 189 125 85 x 125 70 76 86 12 M10 83 16.938 399 178 120 90 x 130 70 76 86 12 M10 83 17.935 399 168 115 95 x 135 70 76 86 12 M10 83 18.931 399 159 110 100 x 145 92 98 110 12 M12 145 29.014 580 167 115 110 x 155 92 98 110 12 M12 145 34.575 629 165 115 120 x 165 92 98 110 14 M12 145 40.620 677 163 115 130 x 180 108 114 128 12 M14 230 51.753 796 150 105 140 x 190 108 114 128 14 M14 230 65.023 929 163 115 150 x 200 108 114 128 16 M14 230 79.620 1.062 174 125 160 x 210 108 146 162 16 M14 230 84.928 1.062 163 120 170 x 225 136 146 162 14 M16 355 109.736 1.291 148 110 180 x 235 136 146 162 16 M16 355 132.790 1.475 160 120 190 x 250 136 146 162 16 M16 355 140.167 1.475 151 115 200 x 260 136 146 162 16 M16 355 147.544 1.475 144 110 220 x 285 136 146 162 20 M16 355 202.873 1.844 164 125 240 x 305 136 146 162 22 M16 355 243.448 2.028 165 125 260 x 325 136 146 162 22 M16 355 263.735 2.028 152 120 280 x 355 138 148 168 20 M20 690 403.047 2.878 198 125 300 x 375 165 177 197 22 M20 690 475.020 3.166 170 135 320 x 405 165 177 197 22 M20 690 506.688 3.166 159 125 340 x 425 165 177 197 24 M20 690 587.297 3.454 163 130 360 x 455 188 202 224 22 M22 930 709.561 3.492 154 120 380 x 475 188 202 224 26 M22 930 885.159 4.658 173 135 400 x 495 188 202 224 26 M22 930 931.746 4.658 164 130 ® SIT-LOCK 4 internal locking device - self-centring
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