Fastening unit for use as part of bolt connection in module, has washer inserted on pin over recess and is brought against pin in radial direction in tolerance-free manner, where inner diameter of recess is same as outer diameter of pin

摘要

#CMT# #/CMT# The fastening unit (1) has a pin (1.2) with an outer diameter (Da) and a concentric central recess (1.4) with an inner diameter (Di) and a center axis (M). A washer (1.1) is inserted on the pin over the recess. The inner diameter of the recess is same as the outer diameter of the pin. The washer is brought against the pin in a radial direction in a tolerance-free manner. The washer comprises a flat contact surface (1.3) that is formed by flattening, cutting, edge bending or embossing the washer. A normal vector is formed on the contact surface. #CMT#USE : #/CMT# Fastening unit for use as a part of a bolt connection in a module. #CMT#ADVANTAGE : #/CMT# The relative motion between the washer and a nut running in radial direction is prevented, thus preventing loosening of the nut of the pin. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a perspective view of a fastening unit and a module without a nut. Da : Outer diameter Di : Inner diameter M : Center axis 1 : Fastening unit 1.1 : Washer 1.2 : Pin 1.3 : Flat contact surface 1.4 : Concentric central recess.