FASTECH
Motor Specification Table
Model Unit BM-20 series BM-28 series BM-42 series
20M 20L 28S 28M 28L 42S 42M 42L 42XL
DRIVE METHOD - BI-POLAR
NUMBER OF PHASES - 2 2 2 2 2 2 2 2 2
CURRENT per PHASE A 0.5 0.5 0.95 0.95 0.95 1.2 1.2 1.2 1.2
HOLDING TORQUE N·m 0.016 0.025 0.069 0.098 0.118 0.32 0.44 0.5 0.65
ROTOR INERTIA g·cm² 2.5 3.3 9.0 13 18 35 54 77 114
WEIGHTS g 53 78 115 174 202 238 303 374 508
LENGTH(L) mm 28 38 32 45 50 34 40 48 60
PERMISSIBLE OVERHUNG LOAD(DISTANCE FROM END OF SHAFT) 3mm N 18 18 30 30 30 22 22 22 22
8mm 30 30 38 38 38 26 26 26 26
13mm - - 53 53 53 33 33 33 33
18mm - - - - - 46 46 46 46
PERMISSIBLE THRUST LOAD N Lower than motor weight
INSULATION RESISTANCE Mohm 100 MIN.(at 500VDC)
INSULATION CLASS - CLASS B(130˚C)
OPERATING TEMPERATURE ˚C 0 to 55
Torque Graph
Motor Drawings