Who We Are
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.

Black Ace products serve a number of industries worldwide, including agriculture, automation, construction, industrial, mining, material handling, off-highway, oil & gas, and timber.

Black Ace Idlemaster - Horizontal Mount Hitche

Product Details