Also, the cogging torque can be drastically reduced.

The holder detent groove and the seal ring detent groove in combination are configured to seat and to retain the sealing element.

It is possible to provide a linear motor which can simultaneously reduce a slot cogging thrust and a cogging thrust generated by the end effect of a movable element without increasing the device size.

A catch ball (7) that engages a catch recess (6) of the sliding selector shaft (2) is arranged at the outward end (16) of the locking bolt (12).

The present invention provides a linear motor that simultaneously achieves cogging reduction and high thrust.

The upper rail (8) is assigned a rotatably mounted latching hook (14) which has a number of teeth (16) for latching in latching recesses (18) assigned to the lower rail (6).

It is intended to reduce latching and/or oscillating moments of a segmented electric machine.

The cogging torque in a 3-phase permanent magnet synchronous motor can be very considerably reduced.

Consequently, the fundamental waves of the cogging torque can be reliably cancelled out.

The shaft has a cyclical cogging torque acting thereon in a first direction.

An anti-cogging apparatus improves rotation of a rotatable shaft about an axis.

In order to secure the selected latch position in the long term, a blocking plate (7) which can pivot about the axis of rotation of the grip plate (3) can prevent the latch balls (5) from moving.

A base (1) is provided with a catching part (15) for catching a connecting member (2).

Provided is a magnetic machine capable of reducing the ripple and cogging of a torque or thrust.

The present invention is capable of drastically reducing the cogging torque of a permanent magnet synchronous motor.