Techno Products Development Pvt. Ltd. Supplies Geared Motor with Hollow Shafts. Techno Products Development Pvt. Ltd. Is an ISO 9001:2000 certified company. The Geared Motor with Hollow Shafts has a torque rating of 90 - 16,800 Nm. It is available in a wide range of voltages. It also includes a version with integrated adjustable frequency drive up to 10 HP.