shell encasing the tie beam arrangement said shell comprising a longitudinal structure in an area of an outer surface partially winding around the wheel and wherein the ratio of the width of the suspension to the height thereof is greater than one and less than or equal to three the wheel comprises a groove for guiding the suspension on the sides in which the suspension is at least partially received and the groove floor thereof being formed flat the shell is coated at least in areas on the outer surface thereof wherein the coating optionally has a friction reducing friction increasing and or wear reducing effect application_number US 73874408 A description mutually corresponding components or features are denoted in the figures by identical reference numerals fig1 shows schematically an elevator according to one embodiment of the present invention the elevator comprises a car 3 which can move along rails 5 in a shaft 1 and a counterweight 8 which is coupled to the car moves in the opposite direction and is guided on a rail 7 a suspension 12 which will be described hereinafter in greater detail is inertially fastened at one end at a first hang up point 10 in the shaft 1 starting from there it.