Dimensions: * Hollow shaft Ø: 12.0 mm max. * Outer Ø: 36.8 mm * Length: 16.0 mm Specifications: * Operation temp.: -55 ºC...+155 ºC * Perm. Speed: 20000 1/min max. * Accuracy: ± 4‘/± 6‘/±10‘ * Accuracy ripple: 1‘ max. * Rotor and stator completely impregnated * 1/2/3/4 pole pairs