A conveyor assembly includes a conveyor module including first and second roller bodies and a conveyor belt; a chassis; and a tensioning system. The tensioning system is operable to adjust the tension of the conveyor belt and includes a tensioning device selectively shiftably mounted to the chassis such that shifting of the tensioning system in the fore-aft direction along the chassis results in corresponding fore-aft shifting of the first roller body relative to the second roller body, thereby facilitating adjustment of the tension of the conveyor belt. The chassis includes a pair of side rails and a slider bed. A stiffening assembly includes a bracket spaced vertically below the slider bed such that a vertical gap is formed between the slider bed and the bracket. The stiffening assembly further includes an insert disposed on the bracket and extending upward across at least a portion of the gap.

Bearing and bearing protector with improved performance characteristics, reduced material use, lower cost of manufacturing and maintenance. Bearing protector includes air permeable element (e.g., wool, felt) that is configured to allow passage of air while preventing dust and other particulars from entering the bearing thereby improving bearing operation and longevity. Felt may be impregnated with a lubrication fluid to provide additional lubrication and protection. A self-lubricating bearing (SLB) is manufactured from an engineering plastic and is fitted with integrated bearing protector. The self-lubricating bearing includes one or more linear groves. When fitted onto an axle, the groves may receive excess plastic material that may occur during thermal expansion of the bearing during operation due to friction and heating. Plastic material may include an antifiction agent and the groves may be packed with consistent lubricant in order to reduce friction and improve performance.

The present disclosure provides a roller and a locking method thereof. The roller includes a main body, a first groove provided on an inner surface of the main body, and a first elastic component fitted with the first groove; wherein a through hole for receiving and fixing a shaft is provided on the first elastic component. The present disclosure can be used to lock shafts.

A modular roller device to facilitate horizontal displacement of objects and materials, including large, heavy, or bulky objects and materials comprising a frame constructed of at least one formed rod, a first rolling member rotatably mounted to a first support arm, and a second rolling member rotatably mounted to a second support arm, wherein the first rolling member may be arranged in a generally parallel orientation relative to the second rolling member. The frame may comprise at least one extending section, and the opposing first and second support arms may be coupled thereto. The at least one extending section may comprise a longitudinally extending section and/or a diagonally extending section. The modular roller device may further comprise at least one secondary extending section. The modularly roller devices can be further combined to a form a system to facilitate the horizontal displacement of objects and materials.

Seal assemblies for conveyor idler rolls are provided. In some embodiments, a plurality of subsets of seal components are selectively installable in the seal assembly. In some embodiments, one or more fins are included on a seal.

A conveyor system includes a conveyor assembly. The conveyor assembly includes a conveyor module, a power module, and a chassis supporting the conveyor module and the power module. The conveyor module includes a roller rotatable about an axis and a conveyor belt shiftable in response to rotation of the roller. The power module provides rotational power to the roller. The power module includes a power assembly and a drive configured to transmit rotational power to the roller from the power assembly. The power assembly includes a power source and a housing at least substantially surrounding the power source. The chassis integrally forms a portion of the housing.

This invention discloses a hoisting sheave shaft, a hoisting sheave and a lubricating device thereof, where the hoisting sheave shaft is provided with a first oil injection channel extending axially; an oil inlet of the first oil injection channel is arranged on an end surface of the hoisting sheave shaft; the hoisting sheave shaft is also radially provided with at least one second oil injection channel; the second oil injection channel intersects with the first oil injection channel; and an oil outlet of the second oil injection channel is arranged on an outer circular surface of the hoisting sheave shaft.

Conveyer pulley with improved performance characteristics reduced metal use, lower labor use manufacture, assembly and maintenance. The pulley includes a tubular housing, an axle pre-fitted with disks supports, two plastic endcaps press-fitted into the housing. Two self-lubricating plastic bearings with integrated bearing protectors are fitted onto the axle and into the end caps and are being kept in place by two retaining rings. Protector element of the bearing is fabricated from felt that is impregnated with a lubrication fluid. Inner grooves of the bearings may be packed with consistent lubricant.

A cargo handling system that enables rollers to swivel without the need for the inclusion of metal thrust bearings. A method of assembling and retrofitting existing conventional type swivel caster style wheels is also provided.

To suitably set a control gain in feedback control while suppressing an increase in apparatus size. A workpiece transport control system includes: one or a plurality of motion guidance devices; a table on which a workpiece is to be placed; an actuator which imparts a driving force to the table; a control unit which performs transport control by feedback control; and a calculation unit which calculates a transport load applied from the workpiece to a moving member of each of the one or a plurality of motion guidance devices, wherein a control gain related to the feedback control in the transport control is adjusted on the basis of the transport load in each of the one or a plurality of motion guidance devices.