Lead Time1
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{Contact your local sales office for more information.}
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Frame Size
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1.65 in
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Motor Length
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1.57 in.
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Speed-Torque Characteristics
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![](/ImgSmall/stc-rks544.jpg)
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Holding Torque
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29 oz-in
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Type
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Standard
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Shaft/Gear Type
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Round Shaft with Flat (No Gearhead)
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Encoder
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Not Equipped
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Shaft
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Single
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Electromagnetic Brake
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Not Equipped
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Power Input
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AC
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Current
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0.35 A
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Basic Step Angle
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0.72º
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Rotor Inertia
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0.26 oz-in²
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Permissible Overhung Load
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0 in. from Shaft End = 7.8 lb0.2 in. from Shaft End = 9.9 lb0.39 in. from Shaft End = 13 lb0.59 in. from Shaft End = 19.1 lb
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Permissible Thrust Load
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0.69 lb
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RoHS Compliant
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Yes
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Safety Standards
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UL CE
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CE Marking
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Low Voltage Directives EMC Directives
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Insulation Resistance (Motor)
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100 MΩ or more when 500 VDC megger is applied between the following places: Case - Motor windings
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Dielectric Strength (Motor)
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Sufficient to withstand the following for 1 minute: Case - Motor windings 1.5 kVAC 50 Hz or 60 Hz
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Degree of Protection
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IP20
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Ambient Temperature Range
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+14 ~ +122ºF (-10 ~ +50ºC) (non-freezing)
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Ambient Humidity
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85% or less (Non-Condensing)
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Operating Atmosphere
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No corrosive gases, dust. Avoid contact with water or oil.
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Temperature Rise
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Temperature rise of the windings is 144ºF (80ºC) or less. Measured at rated current, at standstill, five phases energized measured (by resistance change method).
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Shaft Runout
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0.002 in (0.05 mm) T.I.R.
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Concentricity
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0.003 in. (0.075 mm) T.I.R.
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Perpendicularity
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0.003 in. (0.075 mm) T.I.R.
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Stop Position Accuracy
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±5 arc minutes (±0.084º)
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Radial Play
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0.001 inch (0.025 mm) max. of 1.12 lb. (5 N)
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Axial Play
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0.003 in (0.075 mm) max. of 2.2 lb. (10 N)
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