An assembly of a pair of roller bearings in which the inner bearing rings are axially spaced apart by a first member and the outer bearing rings are spaced apart by a second member with one of the inner or outer ring of each bearing being an axially outer bearing ring spaced axially further from the outer bearing than the other ring of that bearing. The machine includes a moveable dispenser for applying an adhesive flap to the core prior to winding the carpet around the core. Front legs are pivotally assembled at one end to the front cross member for pivotal movement of the seat cushion relative to the front leg between a seating position and a forwardly dumped positions. The data coding blocks are disposed around the positioning block and include the specific patterns arranged as the N\xd7M matrix, wherein the specific pattern in a center of the data coding blocks is filled.