www.jbj.co.uk/couplings.html #DriveLineHarmony ® SIT-LOCK 5A Internal Locking Device - Self-centring 21 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 5A 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 1 t 2 Ms [Nm] Mt [Nm] Fax [kN] Pw [N/mm²] Pn [N/mm²] 18 x 47 48 42 29 26 6 M6 17 492 55 310 120 19 x 47 48 42 29 26 6 M6 17 520 55 294 120 20 x 47 48 42 29 26 6 M6 17 547 55 279 120 22 x 47 48 42 29 26 6 M6 17 602 55 254 120 24 x 50 48 42 29 26 6 M6 17 657 55 233 110 25 x 50 48 42 29 26 6 M6 17 684 55 223 110 28 x 55 48 42 29 26 6 M6 17 766 55 199 100 30 x 55 48 42 29 26 6 M6 17 821 55 186 100 32 x 60 48 42 29 26 9 M6 17 1.313 82 262 140 35 x 60 48 42 29 26 9 M6 17 1.436 82 239 140 38 x 65 48 42 29 26 9 M6 17 1.559 82 220 130 40 x 65 48 42 29 26 9 M6 17 1.641 82 209 130 42 x 75 59 51 34 30 6 M8 41 2.123 101 213 120 45 x 75 59 51 34 30 6 M8 41 2.275 101 199 120 48 x 80 59 51 34 30 6 M8 41 2.426 101 186 110 50 x 80 59 51 34 30 6 M8 41 2.527 101 179 110 55 x 85 59 51 34 30 9 M8 41 4.170 152 244 160 60 x 90 59 51 34 30 9 M8 41 4.549 152 223 150 65 x 95 59 51 34 30 9 M8 41 4.928 152 206 140 70 x 110 66 56 45 40 7 M10 83 6.555 187 177 115 75 x 115 66 56 45 40 7 M10 83 7.023 187 166 110 80 x 120 66 56 45 40 7 M10 83 7.491 187 155 105 85 x 125 66 56 45 40 8 M10 83 9.096 214 167 115 90 x 130 66 56 45 40 8 M10 83 9.631 214 158 110 95 x 135 66 56 45 40 10 M10 83 12.708 268 187 130 100 x 145 77 65 52 45 7 M12 145 13.634 273 161 110 110 x 155 77 65 52 45 8 M12 145 17.931 326 175 125 120 x 165 77 65 52 45 10 M12 145 24.450 408 200 145 130 x 180 77 65 52 45 12 M12 145 31.787 489 222 160 140 x 190 88 74 59 50 10 M14 230 39.141 559 212 155 150 x 200 88 74 59 50 12 M14 230 50.325 671 237 180 160 x 210 88 74 59 50 12 M14 230 53.680 671 222 170 170 x 225 88 74 59 50 14 M14 230 66.540 783 244 185 180 x 235 88 74 59 50 14 M14 230 70.455 783 231 175 190 x 250 88 74 59 50 15 M14 230 79.681 839 234 180 200 x 260 88 74 59 50 17 M14 230 95.058 951 252 195
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