103F7853-7041 Sanyo Denki
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The Sanyo Denki 103F7853-7041 is a stepping motor in the StepSyn Stepping Motors series and features a basic step angle of 0.72 degrees. It has a holding torque of 1.79 Newton-meters, an IP40 protection rating, and a 60 mm square motor flange. The allowable radial load is 80 Newtons, and the motor measures 87.5 mm in length.
Internal Product Review
The 103F7853-7041 is a Sanyo Denki StepSyn stepping motor with a 0.72° basic step angle and 1.79 N·m holding torque. IP40 protection and insulation resistance of ≥100 MΩ support dependable operation in enclosed industrial assemblies. Low rotor inertia of 0.84×10^-4 kg·m² makes the motor an excellent choice for precise, responsive motion control.
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Product Description:
The 103F7853-7041 stepping motor is manufactured by Sanyo Denki for the StepSyn Stepping Motors series. This motor is intended for closed-loop or open-loop positioning duties in semiconductor tools, laboratory instruments, and automated assembly stations, where discrete angular moves must translate into predictable linear travel. A 60 mm square mounting face bolts directly to standard gearheads or linear lead screw blocks, and the model’s electrical interface is provided through the keyed PM-AP-064 plug, simplifying installation and wiring.
Position resolution is established by a basic step angle of 0.72°, so each full step advances the shaft less than one degree and allows high microstep subdivision in precision mechanisms. The motor develops a holding torque of 1.79 N·m, providing static load support when winding current is maintained. A compact 60 mm square flange carries four tapped holes for rigid attachment, while the housing length of 87.5 mm keeps the overall footprint modest. Dynamic behavior is influenced by a rotor inertia of 0.84 × 10⁻⁴ kg·m², enabling quick acceleration without excessive drive current. Shaft guidance accuracy is maintained with radial play limited to 0.025 mm and axial play held below 0.075 mm under the reference preload of 4.4 N.
The motor supports an allowable radial load of 80 N at the reference shaft position and an allowable thrust load of 20 N along the axis, helping prevent premature bearing wear in belt-drive, pulley, or lead screw applications. The stator insulation withstands overvoltage testing at 500 V DC and has an insulation resistance of at least 100 MΩ, supporting reliable operation with grounded or floating power supplies. The enclosure has an IP40 protection rating, so the unit is protected against fingers and large particles but requires a clean enclosure where liquids or fine dust are present. The thermal design permits a maximum winding temperature rise of 80 K above ambient temperature, keeping magnet adhesion and lubricant viscosity within safe limits during continuous operation.
