When the keyway covering member is in the covering orientation, a covering portion of the keyway covering member aligns with the keyway to cover the keyway.

bore with keyway of a milling cutter

A cartridge for a disk drive has a rigid shell with a keying ear (22) and two keying grooves (24, 25).

This prevents the staking section (34) from being pressed and crushed when the staking section is in contact with the pull tab (5) and other members.

A keying portion (13) is provided at one end of the male half (11) which has at least one keying element (14) with a bearing surface (20).

The connector mounting hole (24) is provided with a key groove (27), and the first housing section (3) is provided with a key protrusion (8).

A lock assembly includes a lock body and a keyway covering member.

A keying arrangement is provided having keying walls for inhibiting the mating except for mating a first electrical connector to a designated second electrical connector.

A keying system for an electrical connector (10, 16) is disclosed.

The lock body includes a keyway disposed on an outer surface.

The nose cone has keying ribs along an exterior thereof.

The rocking handle (3) is pierced through one supporting plate (7) and connected to the spherical shell (2) through a key rod assorted with a key groove.

The invention is useful for the keyless mounting, on a shaft, of a detachable hub provided on a rotating unit.

The keying members can be easily and conveniently assembled and disassembled in the field by the end user.

A spring (114) biases said key (112a) in a direction (F) towards a key groove (111b).