A sheave may include a body portion with a circular circumference and defining a center plane, a bore extending through the body portion and configured for receiving a shaft and allowing the body portion to rotate in the center plane, and a rope groove arranged on the circular circumference, wherein, the body portion comprises a structured profile.

A sheave may include a body portion with a circular circumference and defining a center plane, a bore extending through the body portion and configured for receiving a shaft and allowing the body portion to rotate in the center plane, and a rope groove arranged on the circular circumference, wherein, the body portion comprises a structured profile.

A pulley assembly and an installation for moving objects incorporating such a pulley assembly are disclosed. The pulley includes first and second plates disposed about a median plane. One or more sheaves are disposed between the plates. The or each sheave is carried for rotation about a respective sheave axis that is perpendicular to the median plane. A bollard extends between the plates to provides an interconnection between the plates. The bollard is shaped, whereby its dimension in a direction along a major dimension line, which dimension line that extends radially from one of the sheave axes, is greater than its dimension in a direction perpendicular to that dimension line.

An improved pulley for winch is described, in contact with at least one section of rope included between an inlet section, connected to a working load, and an outlet section, with minimum or null tension, such pulley comprising a kinematic chain composed of peripheral supports.

An improved pulley for winch is described, in contact with at least one section of rope included between an inlet section, connected to a working load, and an outlet section, with minimum or null tension, such pulley comprising a kinematic chain composed of peripheral supports.

It is described a node handling device for use during deployment or retrieval of a plurality of seismic nodes (10) attacked to a cable (8), the node handling device comprising: a wheel device (1) adapted for damping of the cable (8) with attached seismic nodes (10) during deployment or retrieval. A wheel device and a method for deployment or retrieval are also disclosed.

A sheave assembly, apparatus, and method for assembly a sheave. The sheave assembly includes a hub, an axle, a bearing element disposed between the axle and the hub, and a sheave body disposed at least partially around the hub. The sheave assembly also includes an adapter coupled with the sheave body. The adapter and the hub at least partially define a flowpath that extends to the bearing element.

A sheave assembly, apparatus, and method for assembly a sheave. The sheave assembly includes a hub, an axle, a bearing element disposed between the axle and the hub, and a sheave body disposed at least partially around the hub. The sheave assembly also includes an adapter coupled with the sheave body. The adapter and the hub at least partially define a flowpath that extends to the bearing element.

A sheave is constructed and arranged to rotate about an axis for guiding motion of a belt. The sheave includes a circumferentially continuous surface facing substantially radially outward. The surface carries a plurality of imprints orientated to prevent belt slip upon the sheave.

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.