A 6A 4M21FA is an aluminum alloy timing pulley flange with a 9.525 mm pitch and 21 teeth, designed for synchronous belt drive systems. It has an inner diameter of 53.85 mm and an outer diameter of 69.8 mm, with a flange thickness of 2.3 ± 0.25 mm. The part is priced per 25 pieces and is available in aluminum alloy or steel, with this variant being aluminum. Dimensions are provided in both inch and metric units, with metric values used for specification.
For power transmission applications, a belt and pulley drive system are one of the most common and cost-effective methods used to transfer motion in a drive system. synchronous timing belts, with their defined pattern and evenly spaced teeth, mate with matching timing belt pulleys and idlers to drive motion in precision equipment. When synchronization between shafts is not a priority, V- belts are an excellent alternative. V-belts ride in the groove of compatible V-belt pulleys and idlers. Flat belts find considerable usage in applications requiring small pulley diameters, high belt surface speeds, low noise levels, low weight, and inertia. Round belts or O-Rings are used with grooved pulleys. A cable drive system is another means of transmitting synchronous motion. Consisting of an extremely flexible cable and uniquely grooved pulleys, the Synchromesh Drive system offers design possibilities previously not achievable. Timing belt and cable accessories, belt tensioners and tension testers assist in the maintenance and operation of a belt drive system.
| Stock Drive Products & Sterling Instrument - SDP/SI | |
|---|---|
| Product Category | Timing Pulley Flanges |
| Product Number | A 6A 4M21FA |
| Product Name | 9.525 mm Pitch, 21 Teeth, Aluminum Timing Pulley Flange. |
| Material | Aluminum |
