transmission_interface/SimpleTransmission hardware_interface/PositionJointInterface 1 transmission_interface/SimpleTransmission hardware_interface/PositionJointInterface 1 transmission_interface/SimpleTransmission hardware_interface/PositionJointInterface 1 transmission_interface/SimpleTransmission hardware_interface/PositionJointInterface 1 transmission_interface/SimpleTransmission hardware_interface/PositionJointInterface 1 transmission_interface/SimpleTransmission hardware_interface/PositionJointInterface 1