DC motors have the force
Advancements in brushless DC motor technology are transforming linear actuation useful for engineers designing manufacturing equipment.
Shown (right) is an example of an 8mm diameter brushless DC motor fitted with an 8mm diameter planetary gearhead.
The gearhead output f lange contains not only the standard set of preloaded radial ball bearings, but also an additional set of bearings mounted between the radial bearings configured as an axial thrust block.
By mounting the gearbox thrust bearings between the radial set, it provides additional separation and increased radial capability. The importance of this bearing system is intrinsically related to the shaft.
Close scrutiny of the shaft on this tiny gearmotor reveals its true function – linear movement. The ceramic thread is manufactured with tight tolerances on runout and pitch and with extremely smooth surfaces.
On this example a thread of only 3mm diameter provides up to 27N.
Contact Maxon Motor Australia on + 61 2 9476 4777.