MITSUMI Stepping Motors M55SP-1 Stepping Motors OUTLINE A high-precision stepping motor "M55SP-1", 55mm in outer diameter. Despite such compact body size as 23mm in thickness, it has acquired high output characteristic, excellent running quietness and stability. FEATURES 1.High output torque. 2.Superior running quietness and stability. 3.Step angle : 7.5˚. 4.Excellent responsiveness acquired. USES Printers, multifunction machines, copy machines, FAX, and such. MITSUMI Stepping Motors SPECIFICATIONS Items Rated Voltage Working Voltage Rated Current/Phase No. of Phase Coil DC Resistance Step Angle Excitation Method Insulation Class Holding Torque Pull-out Torque Pull-in Torque Max. Pull-out Pulse Rate Max. Pull-in Pulse Rate M55SP-1 DC 12V DC 24V DC 10.8~13.2V DC 21.6~26.4V 259mA 216mA 4 Phase 4 Phase 50Ω/phase±7% 120Ω/phase±7% 7.5˚/step 7.5˚/step 2-2 Phase excitation (Unipolar driving) Class E insulation Class E insulation 107.8mN·m 127.4mN·m 24.5mN·m/200pps 48.0mN·m/200pps 16.7mN·m/200pps 43.6mN·m/200pps 270pps 330pps 265pps 315pps CHARACTERISTICS M55SP-1 (50Ω, 12V DC) M55SP-1 (120Ω, 24V DC) 98.00 58.80 Pu ll Pu ll-i 39.20 nT Torque (mN·m) Torque (mN·m) 78.40 -o u tT orq ue ue orq 19.60 78.40 Pu ll 58.80 Pu ll- -o u in To tT orq ue rq 39.20 ue 19.60 0 0 100 200 Pulse Rate (pps) 300 0 0 100 200 300 Pulse Rate (pps) DIMENSIONS Unit : mm, General tolerance : ±0.5