This invention relates to idler rollers particularly for belt conveyors. Several types of idler rollers are utilised in the conveyor industry including transporting idlers, return idlers and impact idlers. The invention is applicable to all forms of such idlers.
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According to the invention there is provided an idler roller comprising a prefabricated core having a bore to accommodate an idler shaft, and a shell of synthetic plastic material moulded around the core to provide a tubular load bearing wall and end walls integral therewith, the end walls of the shell each including a cavity in which a bearing for receiving the said shaft is to be mounted.
The tubular load bearing wall of the shell will normally be elongated and the end walls shaped to accommodate roller bearings in suitable cavities which are co-axial with the shaft accommodating bore in the core.
Preferably the core is recessed and the end walls of the shell include tubular zones extending axially into the recesses, the bores of the tubular zones providing the bearing mounting cavities.
Preferably also the end walls of the shell are recessed complementally to the core.
The tubular wall of the shell is a load bearing member the load bearing properties of which are not necessarily assisted by the core. In order to strengthen the shell therefore the core may include a plurality of radial slots therein so that in the moulding of the shell around the core corresponding gussets are formed extending in the slots from the tubular load bearing wall to the tubular zones of the end walls.
The synthetic plastic material used for the formation of the shell may be any hard wearing impact resisting polymer or copolymer composition such as a polyester or polypropylene, but in the preferred embodiments of the invention the shell is formed from a suitable grade of non-foamed polyurethane.
For an impact roller the polyurethane moulding composition may be modified to have a hardness not less than 40 shore A, preferably 40-60 shore A so that the impact resistance increases and an unnotched sample is unbreakable on a Charpy test. The flammability may be the same as that for a transportation or return idler.
In the preferred embodiment of the invention the polyurethane employed for the formation of the shell is a material in the elastomer range. Such elastomer provides the required properties of impact and wear resistance coupled with suitable load bearing characteristics.
As a conveyor manufacturer, we often say we like to use our own ingredients in our cooking.It means we self-develop and build the components of our conveyor systems internally. As one of the few combination manufacturers of conveyor systems and their components, we are equipped with conveyor components engineers who are tasked to solve problems with our own conveyors every.
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STAINLESS STEEL CONVEYOR BELT FASTNERS GORO T10H 10 STRIPS PER BOX 40quot OF SPLICE. Shipped with USPS First Class Package.Conveyor Systems gt Other Conveyor Systems. Email to friends Share on Facebook - opens in a new window or tab Share on Twitter.
Company Overview Jinan Goro Conveyor System Components. With the development more than ten years, Shanghai GORO Conveyor System Components Co., Ltd, a Sino-French joint venture which was established in 1996, has formed the group operation scale with its branch enterprises Huaibei GORO conveyor System Components Co., Ltd, Anhui Depreux Rubber Belt Co., Ltd and Shanghai GORO.
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