An object of the present invention is to further improve upon the strength and durability of a wire rope. A wire rope has a core rope made of steel; a covering layer, which is made of a composite resin, covering the outer peripheral surface of the core rope; and multiple side strands, which are made of steel, wound on the outer peripheral surface of the core rope covered with the covering layer. The composite resin constituting the covering layer is obtained by blending cellulose nanofibers with polypropylene serving as a matrix.

An illustrative example embodiment of an elevator sheave liner includes a liner body having an inner surface configured to be received against a sheave and an outer surface configured to engage an elevator tension member. The liner body comprises a polymer material and a plurality of wear resistance particles in the composite material. The wear resistance particles are nanoparticles or microparticles. At least some of the wear resistance particles establish a traction characteristic of the outer surface of the sheave liner.

An illustrative example embodiment of an elevator sheave liner includes a liner body having an inner surface configured to be received against a sheave and an outer surface configured to engage an elevator tension member. The liner body comprises a polymer material and a plurality of wear resistance particles in the composite material. The wear resistance particles are nanoparticles or microparticles. At least some of the wear resistance particles establish a traction characteristic of the outer surface of the sheave liner.

A pulley block that includes a first side plate, a second side plate and an axle received in the first side plate and the second side plate. The axle is fixed with the first side plate and in a floating relationship with the second side plate such that the second side plate is retained on the axle and capable of rotating around the axle. The axle defines a central opening configured for receiving a soft shackle and a pulley supported on the axle between the first side plate and the second side plate in a longitudinal direction of the axle. The pulley is configured for receiving a winch line around an outer perimeter thereof. Also a method of installing a winch line on such a pulley block.

An illustrative example embodiment of an elevator sheave liner includes a liner body having an inner surface configured to be received against a sheave and an outer surface configured to engage an elevator tension member. The liner body comprises a polymer material and a plurality of wear resistance particles in the composite material. The wear resistance particles are nanoparticles or microparticles. At least some of the wear resistance particles establish a traction characteristic of the outer surface of the sheave liner.

An illustrative example embodiment of an elevator sheave liner includes a liner body having an inner surface configured to be received against a sheave and an outer surface configured to engage an elevator tension member. The liner body comprises a polymer material and a plurality of wear resistance particles in the composite material. The wear resistance particles are nanoparticles or microparticles. At least some of the wear resistance particles establish a traction characteristic of the outer surface of the sheave liner.

The present invention relates generally to rope drives working with high-strength fiber ropes such as crane hoists, boom adjustment gear, trolley traveling gear, etc. The invention in this respect in particular applies to hoist drums for the rope hoist winch of such a fiber rope drive having a drum jacket body which is provided with grooving at the peripheral side and having two guard plates adjacent to the drum jacket body at the end sides. The invention further relates to a rope pulley for such a fiber rope drive having a rotatably supported pulley body whose jacket surface has at least one rope groove. In accordance with the invention, the rope grooves have a flat-pressed, round groove contour which differs from the circular and which has a larger radius of curvature in the region of the groove base than in the region of the groove flanks adjacent thereto.

Apparatus, system, and methods for providing load responsive friction for a cable trolley device. An apparatus includes a housing configured to receive a cable. The housing includes a load attachment point and a friction device attached to the housing. The friction device is configured to cause deflection of the cable relative to an amount of load attached to the load attachment point.

Apparatus, system, and methods for providing load responsive friction for a cable trolley device. An apparatus includes a housing configured to receive a cable. The housing includes a load attachment point and a friction device attached to the housing. The friction device is configured to cause deflection of the cable relative to an amount of load attached to the load attachment point.

A pulley is disclosed, that comprises: a block formed from first and second spaced-apart plates; a sheave axle that interconnects and is secured to the plates; a sheave carried for rotation on the sheave axle between the plates; and a becket assembly comprising a becket axle that interconnects and is removably secured to the plates and a blocking component carried on the becket axle. The becket axle can be removed from the pulley to enable removal of the blocking component from the pulley. This allows a rope or similar element to be introduced between or removed from between the plates.