Primary suspension system for a railway car

A railway truck including a wheel axle unit connected to a side frame through a primary suspension system including a sub-assembly detachable from said railway truck, said sub-assembly comprising:

• (a) a journal bearing retainer for receiving a journal bearing connected to an axle of said wheel axle unit, said journal bearing retainer having two pairs of first angular portions at the ends thereof;
• (b) a lower support housing connected to said journal bearing retainer and having two pairs of second angular portions;
• (c) a pair of elastomeric vertical springs positioned side by side and each said elastomeric vertical spring having openings at opposite ends to receive locating pin elements connected to said journal bearing retainer and said side frame;
• (d) two pairs of angularly spaced compressed spring elements disposed in a horizontal plane between the respective angular portions of said journal bearing retainer and said lower support housing for providing lateral and longitudinal spring controls in said primary suspension system;
• (e) said pairs of compressed springs including positioning pins at the ends thereof disposed to fit into openings in the angular portions of said journal bearing retainer and said lower housing;
• and
• (f) screw means for securing said sub-assembly to said side frame of said railway truck and said journal bearing whereby said compressed spring elements remain in compressed condition between said first angular portions and said second angular portions after said sub-assembly is removed from said journal bearing and said side frame.