Terog Manufacturing is a family business dedicated to providing you with reliable and innovative power transmission products. Since 1971, Terog has produced quality products under our brand name, Black Ace®. Your drives deserve the best components in the industry. Black Ace® products include Sprockets, Torque Limiters, Idler Wheel Rollers, Chain Tensioners, Steel Pillow Blocks, and the Bull-Pull™ Articulating Implement Hitch.

Terog Manufacturing is composed of a knowledgeable staff, friendly personnel, and expert craftsmen. Black Ace® products are proudly designed and manufactured in the USA. Our business is dedicated to providing you with the highest level of quality products and customer satisfaction.