A chain having a chain link with two legs and two bows connecting the legs together, the bows extending in the bow extension direction between the two legs, wherein an end face of at least one bow, which faces outwards in the pitch direction of the chain link, has two pressure portions spaced apart from one another in the bow extension direction and an intermediate portion connecting the pressure portions, wherein the pressure portions each provide a contact surface between the chain link and a corresponding chain pocket of a chain wheel for introducing a force into the chain, and wherein the end face of the bow is convexly curved in the bow extension direction in the pressure portions and the end face of the bow has, at least in portions in the intermediate portion, a smaller radius of curvature than in the pressure portions.

An end link for use with heavy equipment includes a body and a swivel ball bushing. The body has first and second openings and defines a main body plane. The first opening has a slot located on a side thereof proximate the second opening and a truncated substantially spherical inner surface. The swivel ball bushing is seated within the first opening. The swivel ball bushing has a truncated substantially spherical outer surface in nesting engagement with the inner surface of the body and a projection at one end seated in the slot. The projection and slot are shaped to allow rotation of the swivel ball bushing relative to the body in two opposing directions about one axis of rotation or two mutually perpendicular axes of rotation.

An end link for use with heavy equipment includes a body and a swivel ball bushing. The body has first and second openings and defines a main body plane. The first opening has a slot located on a side thereof proximate the second opening and a truncated substantially spherical inner surface. The swivel ball bushing is seated within the first opening. The swivel ball bushing has a truncated substantially spherical outer surface in nesting engagement with the inner surface of the body and a projection at one end seated in the slot. The projection and slot are shaped to allow rotation of the swivel ball bushing relative to the body in two opposing directions about one axis of rotation or two mutually perpendicular axes of rotation.

Niobium chromium low allow carbon steel for automotive chain link plates has improved wear resistance. In one preferred embodiment, the steel composition includes niobium, chromium, carbon, iron, and any impurities. One preferred composition including these components includes, by weight percentage, approximately 0.25% to 0.75% carbon, approximately 0.20% to 2.0% chromium, approximately 0.26% to 1.5% niobium, and the remaining component of the composition is iron. Trace amounts of impurities may also be present. In another embodiment, a steel composition includes, by weight percentage, approximately 0.25% to 0.75% carbon, approximately 0.2% to 1.0% manganese, approximately 0.05% to 0.60% silicon, approximately 0.26% to 1.5% niobium, approximately 0.20% to 2.0% chromium, up to approximately 0.30% aluminum, up to approximately 0.03% phosphorus, up to approximately 0.03% sulfur, and a remainder of the composition being iron and any other impurities.

A chain link includes a base area, confined by four sides, and first to third link portions respectively on first to third sides. The first and second link portions respectively receive first and second connection elements for connecting the chain link to first and second adjacent chain links, and respectively and relatively define first and second rotational axes of adjacent first and second chain links. The third link portion receives a third connection element for connecting the chain link to a tool receptacle and defines a third rotational axis of a rotary motion of the tool receptacle in relation to the chain link. The first and second axes define a first plane, the first plane is parallel to the chain link base area, and the third axis lies outside the first plane. A tool magazine for a machine tool includes a link chain from chain links for the tool transport.

A chain link includes a base area, confined by four sides, and first to third link portions respectively on first to third sides. The first and second link portions respectively receive first and second connection elements for connecting the chain link to first and second adjacent chain links, and respectively and relatively define first and second rotational axes of adjacent first and second chain links. The third link portion receives a third connection element for connecting the chain link to a tool receptacle and defines a third rotational axis of a rotary motion of the tool receptacle in relation to the chain link. The first and second axes define a first plane, the first plane is parallel to the chain link base area, and the third axis lies outside the first plane. A tool magazine for a machine tool includes a link chain from chain links for the tool transport.

A link member for a continuous track system comprising two side members, and two pin members, wherein the two side members oppose each other and are joined by the two pin members, and wherein the pin members are longitudinal members having a lateral cross section with a single axis of symmetry.

A link member for a continuous track system comprising two side members, and two pin members, wherein the two side members oppose each other and are joined by the two pin members, and wherein the pin members are longitudinal members having a lateral cross section with a single axis of symmetry.

A directional link chain includes a directional indication element configured to indicate the travel direction of chain wheel operators, such as a chain fall or roll-up door. During operation of the chain fall, for example, the directional indication element indicates the travel direction for an attached load. The directional indication element includes both a vertical and a horizontal indication for a multitude of applications. The improved link chain enables an operator to visually recognize the gear system direction and corresponding attached load direction via the directional indication element to efficiently move the attached load the desired direction without trial and error.

A directional link chain includes a directional indication element configured to indicate the travel direction of chain wheel operators, such as a chain fall or roll-up door. During operation of the chain fall, for example, the directional indication element indicates the travel direction for an attached load. The directional indication element includes both a vertical and a horizontal indication for a multitude of applications. The improved link chain enables an operator to visually recognize the gear system direction and corresponding attached load direction via the directional indication element to efficiently move the attached load the desired direction without trial and error.