Katydids

Synchronous drives represent a modern and efficient system of power transmission. They essentially combine the advantages of mechanical components and flexible components while eliminating the inherent disadvantages of both. Why Belt Drives? The timing belt in an car engine is a synchronous belt drive system. The positive nature of these belt drives makes them capable of transmitting large torques and withstanding large accelerations. This makes them perfect for maintaining a constant speed ratio and a permanent relative position, both extremely important in an application like high speed quilting machines. What Does This Mean To You? It means that you APQS longarm will produce beautiful stitches, even at the high speeds. It also means that your machine will maintain its sewing timing. These reasons are probably why every major manufacturer of high end industrial sewing machines use synchronous belt drives as their technology of choice to transmit power to both shafts. Exactly How Do They Work? Belt drives work by engaging two sets of meshing teeth (pictured, right) that do not slip. By eliminating slippage you maintain precise relative positioning even as you push your quilting machine through constant changes in velocity and direction. Synchronous belts operate on a basic principal: molded teeth of the belt and mating grooves of the pulley make positive engagement. The teeth enter and leave the pulley in a smooth rolling manner with low friction. Eliminating Wear, Noise, Friction... All synchronous belts operate on the positive engagement principle with many superior characteristics. Synchronous belts wrap around the pulley by means of flexion and not by rotation of articulated parts. This eliminates one of the causes of wear and noise. The synchronous belt drive is not a friction device. It is a POSITIVE ENGAGEMENT drive that is dependent upon the meshing of the BELT TEETH with the PULLEY GROOVES. To maintain the correct tooth pitch as the belt flexes around the pulley, the belt pitch line coincides exactly with the pitch diameter of the grooved pulley. Additional Advantages Required belt tension is low, therefore producing very small bearing loads. Synchronous belts will not stretch and do not require lubrication. Speed is transmitted uniformly because there is no chordal rise and fall of the pitch line. The deep tooth profile provides superior load carrying strength. Precise registration- synchronous belts provide timing and synchronization accuracy that make for flawless registration, with no loss of torque carrying capacity. Quieter operation- specially engineered teeth mesh cleanly with pulley groove to reduce noise and vibration. Precise positioning- Synchronous belts are specifically designed for applications where precision is critical, such as plotters, machine tools, medical diagnostic equipment, industrial sewing machines, robotics, centrifuges and DC stepper/servo applications. Reasons to Use a Synchronous Belt Drive in long arm quilting machines: Synchronous transmission between the top needlebar shaft and the bottom hook shaft is a must to prevent slippage and maintain precise relative postioning High mechanical drive efficiency and energy savings Precise relative positioning of both shafts (non-slip) Compact drive Low maintenance is required No environmental or contamination concerns (no lubrication required) High torque requirements Increased service life No need for lubrication (lubrication attracts dirt and leads to wear) Reduction in noise Increased productivity-less down time Increased efficiency and registration accuracy Return to Comparison Chart To Order: Call 850-729-0873 or e-mail: Patty@Katydids.net

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Katydids, Inc.
105 Dominica Way
Niceville, FL 32578-4067
850-729-0873
patty@katydids.net