Franke slim bearings of type LSB consist of a bearing element type LEL with a ground raceway, embedded in two bearing sleeves made of metal. The sleeve holds the bearing together and hence permits rapid and simple assembly.
Slim bearings type LSB consist of two inner and outer race rings with ground raceway, one plastic cage with retained balls and a surrounding metal sleeve. The sleeves and the race rings are separated; their diameter can therefore be altered elastically for mounting. Unlike standard slim bearings, Franke slim bearings type LSB can be modified in terms of clearance/preload.
The greatest levels of accuracy are achieved if the constructive design of the mating parts takes place in such a way that the handling of all diameters and surfaces relating to each other can take place within in one setting. The running accuracies indicated in the diagram are average values and may be improved by restricting the tolerances (see 'Technical information').