It was considered luxurious for its time as it had air conditioning, spring seating, and extra legroom.
2.
They washers were also increasing the diameter of the spring seating due to continuous hitting of the raised section of the sitting area.
3.
These are connected to spring seating cups in the middle of the cylinder, each spring being compressed independently, against the ends of the cylinder.
4.
Hence on examination of the failed axle boxes, it was noticed that the Hytrel washers were forming a deep groove of 4 to 8mm on the seating area of the axle box spring seating.