Leave approximately 1 mm between the nut and the hub. (fig 2)
During mounting the outer sleeve (4) and the hub (5) move from the nut in axial direction.
After mounting the hub must not touch the shoulder on the shaft. Therefore, it is important to leave a space between the hub and the shoulder.
If the outer sleeve cannot be moved in axial direction the inner sleeve will slide on the shaft in the direction of the nut. The friction losses that occur result in a lower torque capacity. The torque capacity when the bushing is mounted in this way will be 70% of the listed capacity.