A bearing block assembly for bearing a pair of rollers which enclose a nip, at one end of the pair, includes two bearing blocks, each of which is intended for bearing a respective roller and which are provided with supporting elements for supporting in a frame. The bearing blocks each have a bearing aperture with a center line or axis, support elements via which the bearing blocks are supported next to one another in such that the center lines or axes of the bearing apertures extend parallel and at a distance from one another, as well as adjusting element via which the mutual distance between the center lines or axes can be adjusted. The support elements include a spring structure which is situated between the bearing blocks and cooperates with both bearing blocks and which is elastically deformable during adjustment of the mutual distance between the center lines or axes.