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Planetary Gearhead GP 81 A 81 mm, 20–120 Nm<strong>maxon</strong> gearTechnical DataPlanetary Gearheadstraight teethOutput shaftsteelBearing at outputball bearingRadial play, 8 mm from flangemax. 0.1 mmAxial playmax. 1 mmMax. permissible force for press fits1500 NSense of rotation, drive to output =Recommended input speed< 3000 rpmRecommended temperature range -30…+140°CNumber of stages 1 2 3Max. radial load, 24 mmfrom flange 400 N 600 N 1000 NMax. permissible axial load 80 N 120 N 200 NM 1:4Option: low-play versionStock programStandard programSpecial program (on request)Gearhead Data1 Reduction2 Reduction absolute3 Max. motor shaft diameter mm4 Number of stages5 Max. continuous torque Nm6 Intermittently permissible torque at gear output Nm7 Max. efficiency %8 Weight g9 Average backlash no load °10 Mass inertia gcm 211 Gearhead length L1 mmArticle Numbers110408 110409 110410 110411 110412 1104133.7 : 1 14 : 1 25 : 1 51 : 1 93 : 1 308 : 163/ 173969/ 2891701/ 68250047/ 4913107163/ 115619683/ 6414 14 14 14 14 141 2 2 3 3 320 60 60 120 120 12030 90 90 180 180 18080 75 75 70 70 702300 3000 3000 3700 3700 37001.0 1.5 1.5 2.0 2.0 2.0165 155 125 88 154 8992.0 113.7 113.7 135.3 135.3 135.3overall lengthoverall length<strong>maxon</strong> Modular System+ Motor Page + Sensor Page Brake Page Overall length [mm] = Motor length + gearhead length + (sensor/brake) + assembly partsRE 65, 250 W 84 223.5 245.2 245.2 266.8 266.8 266.8RE 65, 250 W 84 HEDS 5540 277 249.4 271.1 271.1 292.7 292.7 292.7RE 65, 250 W 84 HEDL 5540 279 249.4 271.1 271.1 292.7 292.7 292.7RE 65, 250 W 84 HEDL 9140 282 279.6 301.3 301.3 322.9 322.9 322.9RE 65, 250 W 84 AB 44 334 279.6 301.3 301.3 322.9 322.9 322.9RE 65, 250 W 84 HEDL 9140 282 AB 44 334 297.6 319.3 319.3 340.9 340.9 340.9EC 60, 400 W 160 269.4 291.1 291.1 312.7 312.7 312.7EC 60, 400 W 160 HEDL 9140 281 269.4 291.1 291.1 312.7 312.7 312.7EC 60, 400 W 160 Res 26 287 269.4 291.1 291.1 312.7 312.7 312.7EC 60, 400 W 160 AB 41 333 283.0 304.7 304.7 326.3 326.3 326.3EC 60, 400 W 160 HEDL 9140 281 AB 41 333 307.0 328.7 328.7 350.3 350.3 350.3248<strong>maxon</strong> gearMay 2012 edition / subject to change

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