Bogie mechanism for a tiltrotor proprotor door

A door roller mechanism for cooperation with a roller track for movement in a rolling direction, the door roller mechanism for a tiltrotor aircraft, the tiltrotor aircraft including a movable proprotor housing rotatable relative to a fixed portion from a forward flight mode to a vertical flight mode, a proprotor gearbox door connected between the movable proprotor housing and the fixed portion, and a first track member and a second track member disposed in a channel on the fixed portion, the door roller mechanism comprising:

• a carriage member having a door attachment feature;
• at least one roller disposed for rotation on a first side of the carriage member when the carriage member moves in the rolling direction;
• at least one roller disposed for rotation on an opposite second side of the carriage member when the carriage member moves in the rolling direction;
• a first rub member disposed on the first side of the carriage member;
• a second rub member disposed on the second side of the carriage member;
• and
• at least one biasing element disposed on the carriage member for resiliently biasing the first rub member and the second rub member in opposite lateral directions perpendicular to the rolling direction so as to contact the respective first track member and a second track member in a manner to dampen lateral vibration of the proprotor gearbox door during operation of the tiltrotor aircraft.