They continue to manufacture the original thrust bearings with the unique V-groove raceway which is designed to reduce rolling friction and can carry larger radial loads than typical thrust bearings in a round groove design.
12.
However, this type of drum motor design has a limited maximum radial load due to the bending stresses caused by the normal belt tension of a conveyor and is therefore used mainly for small light duty conveyors and loads.
13.
The line of General Purpose ( GP ) Acme threads ( ASME / ANSI B1.5-1988 ) are not designed to sustain external radial loads and both the nut and bolt are, ideally, independently supported, the nut by a linear guide and the screw by shaft bearings.
14.
For single-row deep-groove ball bearings, SKF's documentation says that maximum axial load is circa 50 % of maximum radial load, but it also says that " light " and / or " small " bearings can take axial loads that are 25 % of maximum radial load.
15.
For single-row deep-groove ball bearings, SKF's documentation says that maximum axial load is circa 50 % of maximum radial load, but it also says that " light " and / or " small " bearings can take axial loads that are 25 % of maximum radial load.
16.
However, there is a centralizing Acme-thread standard ( also specified in ASME / ANSI B1.5-1988 ) which caters to applications where the threads are not radially supported, where the roots and crests of opposing threads are designed to come into contact before the flanks do, under radial loads.
