Hanger units are a compact means of supporting the shafts of screw conveyors and similar equipment.
The bearing is mounted directly into a split grey iron housing (`hanger` ) with a threaded boss, to allow suspension from the conveyor cross-bracing. A swivel fixing at the cross-bracing joint is recommended to provide for alignment of the bearing.
Hangers are only suitable for housing expansion (`EX`) type bearings.
Standard Hanger
Double felt seals are supplied as standard. The standard seal grooves are also able to accommodate rubber lip seals or high temperature packing. A tapped hole in communication with the space between the seal grooves at each end of the housing is optionally provided. this is for connection to either a grease supply or an air supply for regular or continuous purging of the seals.
Another option is for the housing end bores to be machined, to take heavy duty lip seals as illustrated below. The length on shaft of these units may be slightly greater than standard; details will be supplied on request.
Hanger With Heavy Duty Lip
It is recommended that our technical department is contacted in order to obtain a recommendation for the sealing of each hanger unit application.
Lubrication points are not fitted to hangers as standard, with provision for lubrication of the bearing usually made through the suspension rod. continuous grease feed is sometimes desirable.
The standard type of hanger has a single threaded boss for suspension from above, by a single rod to minimise the obstruction to material flow in scroll conveyors. For applications where it is desired to locate the housing by rods from above and below, a double boss type is available.
Double Boss Hanger
A further type of hanger has three threaded bosses disposed at 120 degree intervals for location by three rods.
