Portescap offers Compact and Efficient Gearheads with Low Friction Torque. Portescap is certified I.S.O. 9001-2000 for quality management, received ISO 14001:2004 certification for environmental management, and ISO 18001:2007 certification for occupational health and safety. Compact and Efficient Gearheads with Low Friction Torque are of two kinds: Spur Gear which features low friction torque and planetary gear that can transmit high torque.