Update: 30 September, 2023
The 31813 series low speed synchronous motor is a development of the standard industrial series specifically designed for use in high quality record decks that utilise the belt drive principle. Particular attention has been given to the magnetisation of the 24 pole rotor to optimise smooth running. This, together with the high accuracy of stator pole placement minimises torque ripple and provides low audible noise. The motor which is designed for mounting horizontally with output shaft vertically up is provided with an increased shaft length and a 3 mm diameter to aid the fitting of the drive pulley. When fitting the drive pulley the shaft rear end should be supported to ensure that the axial load limitation is not exceeded. The windings have been specifically designed to facilitate dual voltage operation, a 6.8K Ohm resistor being used in series when operation from a 220 Vac supply is required. Dimensions mm. Specification Nominal Voltage Vac 110 Max Working temperature deg. C 105 Permissible voltage fluctuation % -15 / +10 Ambient temperature range deg. C -5 to +70 Supply Frequency Hz 50 Torque derating % / OC 0.25 Speed @ 50 Hz rpm 250 Insulation according to CEE10 Class 2 Direction of rotation reversible Insulation test voltage V 2500 Direction control capacitor µ F 0.22 ( 250 Vac ) Maximum radial force N 5 Input Power W 1.8 Maximum axial force N 1.5 Input current mA 18 Mass g 16 Housing zinc plated Bearings slide Connections Mclenn
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MD5 Checksum: FA59024419A4F1B26C305B61C426A3E9
Publication date: 07 May, 2012
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PDF Link: ALLIED MOTION PREMOTEC 250 rpm Synchronous Motor 9904 111 31813 PDF