the roller crusher 1 according to the invention the feeder hopper 3 is provided with a feeding chute 22 directing the material to be crushed towards the rollers 7 8 at the very bottom of the feed chute 22 guiding plates 23 24 are provided which guides the flow of material towards the rollers side plates 25 26 are attached to the feed chute by means of e g bolting or welding the purpose of the side plates 25 26 is to seal the gap between the guiding plates and to provide a sealing surface towards the cheek plates which will be described below in fig3 the short ends of rollers 7 8 can be seen positioned within bearing caps 19 20 a bracket 27 is attached by e g welding to the bearing cap 19 and a cheek plate 28 is bolted to this bracket 27 of course other fastening means such as welding are conceivable to the skilled person it would also be possible to include bracket 27 integrally in cheek plate 28 in fig3 a flange 29 can be seen this flange 29 is attached to the short side of roller 8 and has a height which is sufficient to cover the gap between the two rollers 7 8 also when the gap is set at a use maximum due to the cheek plate arrangement of the present invention the opening above the flange 29 and below the side plate 25 is covered at all times if the position or the width of the gap is adjusted due to e g wear of the rollers the cheek plate 28 which is fixedly mounted to the bearing.