Hot runner system

A hot runner system comprising:

• a nozzle received in a well in a mold plate, the nozzle including a nozzle melt channel for delivering moldable material to a mold cavity, a heated nozzle body through which the nozzle melt channel extends, and a collar connected to the heated nozzle body, the collar surrounding and spaced apart from the heated nozzle body;
• a manifold seated against an upstream end of the nozzle, the manifold including a manifold melt channel having an inlet for receiving moldable material from a source and an outlet in fluid communication with the nozzle channel;
• a nozzle bearing member received in the well and against which a seating surface of the collar is supported;
• and
• a biasing member seated between a step in the well and the nozzle bearing member, the biasing member having a plate loading surface through which biasing force is applied to the mold plate and a nozzle loading surface through which biasing force is applied to the nozzle bearing member to urge the upstream end of the nozzle against the manifold when the biasing member is compressed,
• wherein the nozzle loading surface is concentric with the seating surface of the collar, and is circumferentially offset from, so as not to be in line with, the seating surface of the collar, and
• wherein the plate loading surface is concentric with the seating surface of the collar, and is circumferentially offset from, so as to not be in line with, the seating surface of the collar in the opposite direction as the nozzle loading surface is circumferentially offset from the seating surface of the collar.