Techno Products Development Pvt. Ltd. Supplies Helical Gear Boxes with BG Gear Motor. Techno Products Development Pvt. Ltd. Is an ISO 9001:2000 accredited company. The Helical Gear Boxes with BG Gear Motor has 13 gear sizes designed for torques ranging from 20 to 16,800 Nm. It has integrated adjustable frequency drive up to 10 HP [7.5 kW]. It can also be used outdoors or in wet and dusty environments without needing additional enclosures.