220Vac to 05Vdc 10W Compact Power Module (HLK-10M05) E6B2CWZ1X this make them better solution

this make them better solution for vertical motion  (Z direction)

These couplers are made of machined aluminum and have a spiral cut that makes them slightly flexible so they can be fit to two shafts even if they are not perfectly co-linear and will help reduce bending effects

2*49*155mm

Dimensions (L x W ): 30 x 22 mm

Single row of 40-pin

220Vac to 05Vdc 10W Compact Power Module (HLK-10M05) E6B2CWZ1X this make them better solutionThe 10 W ultra small series power supply module is a small volume, high efficiency power module for customers designed by Hi Link. It has the advantage of global input voltage range, low temperature rise, low power consumption, high efficiency, high reliability, high security isolation etc. and has been widely used in smart home, automation control, communication equipment, instruments and other industries. Features: Rated input voltage: 100~240 Vac