Contact Supplier. DC motors models RS-540 or RS-545, Carbon brush dc motor, Cylinder, Diameter35.5 mm, length 50 mm; shaft 3.175 mm, fixing screw 2-M3.0 mm. Operating voltage: 3.6~60V, At no load Speed 2,000~25,000 r.p. Efficiency Stall Torque Operating Range (V) Nominal Speed Current Speed Current Torque Output Eff V r.p.m A r.p.m A W % g.
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