An apparatus having an actuator having a motor, a housing and a thrust rod, where the actuator is configured to convert rotational motion of the motor into axial motion of the thrust rod. A movable holder is coupled to the thrust rod and configured for axial motion of a tool coupling therewith. A bearing assembly is coupled to the actuator, extending along an axis thereof. The bearing assembly is configured to engage with the bearing to provide positional stability for the movable holder and tool coupling when positioned along the actuator axis by motion of the thrust rod.

An apparatus or actuator system having a motor, a housing and a thrust rod or thrust tube, where the actuator is configured to convert rotational motion of the motor into axial motion of the thrust tube for axial motion of a tool coupling therewith. A guide assembly is coupled to the actuator housing, extending along an axis thereof. The guide assembly comprises a guide shaft and a coupling between the guide shaft and the thrust tube, and is configured to provide positional stability for the tool coupling when positioned along the actuator axis by motion of the thrust tube.

An actuator assembly comprising: a pivot bracket configured for mounting to a surface; an actuator base configured to be pivotally engaged with the pivot bracket; an actuator cover configured to couple to the actuator base; and an end cap configured to couple the actuator base to the pivot bracket via a friction fit or a threaded connection. A sash bracket for an actuator, the sash bracket comprising: a clip configured for attachment to a chain of an actuator; a body configured for attachment to a window sash; and a pin configured to releasably couple the clip to the body. A chain guide for an actuator, wherein the chain guide comprises a runner that fits with an elongate recess of the chain.

The present disclosure relates to a brake calliper housing for use for an electromechanically actuable brake actuator having a recess to accommodate a brake piston. The recess is delimited by a cylindrical recess wall, extending in an axial direction into the brake calliper housing, and by a recess bottom. The recess has a recess opening situated opposite the recess bottom. The brake calliper housing has a guide slot, let into the recess wall, to accommodate a guide element for securing the brake piston against rotation. The longitudinal extent of the guide slot runs parallel to the axial direction. The guide slot is of circular design in cross section.