www.jbj.co.uk/couplings.html #DriveLineHarmony ® SIT-LOCK 7 Internal Locking Device - Self-centring 27 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 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 22 28 34 5 M6 17 252 28 243 95 19 x 47 17 22 28 34 5 M6 17 266 28 230 95 20 x 47 17 22 28 34 5 M6 17 280 28 219 95 22 x 47 17 22 28 34 5 M6 17 308 28 199 95 24 x 50 17 22 28 34 5 M6 17 336 28 182 90 25 x 50 17 22 28 34 6 M6 17 421 34 210 105 28 x 55 17 22 28 34 6 M6 17 471 34 188 95 30 x 55 17 22 28 34 6 M6 17 505 34 175 95 32 x 60 17 22 28 34 8 M6 17 718 45 219 115 35 x 60 17 22 28 34 8 M6 17 785 45 200 115 38 x 65 17 22 28 34 8 M6 17 852 45 184 110 40 x 65 17 22 28 34 8 M6 17 897 45 175 110 42 x 75 20 25 33 41 7 M8 41 1.523 73 229 130 45 x 75 20 25 33 41 7 M8 41 1.632 73 214 130 48 x 80 20 25 33 41 7 M8 41 1.741 73 200 120 50 x 80 20 25 33 41 7 M8 41 1.813 73 192 120 55 x 85 20 25 33 41 8 M8 41 2.280 83 200 130 60 x 90 20 25 33 41 8 M8 41 2.487 83 183 120 65 x 95 20 25 33 41 9 M8 41 3.031 93 190 130 70 x 110 24 30 40 50 8 M10 83 4.607 132 208 130 75 x 115 24 30 40 50 8 M10 83 4.936 132 194 125 80 x 120 24 30 40 50 8 M10 83 5.265 132 182 120 85 x 125 24 30 40 50 9 M10 83 6.293 148 193 130 90 x 130 24 30 40 50 9 M10 83 6.664 148 182 125 95 x 135 24 30 40 50 10 M10 83 7.815 165 191 135 100 x 145 26 32 44 56 8 M12 145 9.582 192 196 135 110 x 155 26 32 44 56 8 M12 145 10.541 192 178 125 120 x 165 26 32 44 56 9 M12 145 12.936 216 183 135 130 x 180 34 40 54 64 12 M12 145 18.686 287 173 125 140 x 190 34 40 54 68 9 M14 230 20.708 296 165 120 150 x 200 34 40 54 68 10 M14 230 24.652 329 171 130 160 x 210 34 40 54 68 11 M14 230 28.925 362 176 135 170 x 225 44 50 64 78 12 M14 230 33.527 394 140 105 180 x 235 44 50 64 78 12 M14 230 35.499 394 132 100 190 x 250 44 50 64 78 15 M14 230 46.839 493 156 120 200 x 260 44 50 64 78 15 M14 230 49.305 493 149 115 ® SIT-LOCK 7 internal locking device - self-centring Dimensions [mm] Clamping screws DIN 912 12.9 Values with tolerances for shaft h8/hub H8
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