Colonial Tool Group Inc. Belt Driven Spindle

Belt driven spindles are simple, cost effective and cover a wide range of applications. They come in box, cartridge, flange mount or cradle styles. Bearings used vary from the widely popular angular contact bearings, going thru tapered bore cylindrical roller bearings and reaching the robust Timken bearings. Sealing is a very important feature of a precision spindle. We are careful in analyzing every application and determining the best suited sealing solution. Unlike some of our competitors, we believe that there is no one single type seal or sealing arrangement that can efficiently provide protection against any coolant environment, orientation, temperature variation and other hostile working conditions. We take pride on our ability to custom design for whatever application you challenge us with. Our seasoned engineers have probably seen all application types and been thru all design challenges. This wealth of knowledge has enabled us to develop a line of modular spindles that include patented technologies (e.g. patent# 6,042,273). See GMB series spindle page.