ANSI Device Numbers. From Wikipedia, the free encyclopedia. The ANSI Standard Device Numbers[1] [2] [3] denote what features a protective device supports (such as a. relay or circuit breaker). These types of devices protect electrical systems and components from damage when. an unwanted event occurs, such as an electrical fault.
The piston ring speed on the average chainsaw travels 2,500 surface feet per minute. A chain slides across the surface of the sawbar rail at around 5000 feet per minute. The chain is moving at 55 to 60 m.p.h. or a mile per minute (88 feet per second).
The Roughneck Bench-or Wall-Mount Chain Grinder was specially designed to help you keep your saw chain cutting like new. It performs all sharpening and maintenance tasks for chains from 1/4in. to 3/4in. pitch to help you keep your cuts quick and clean.owerful Electric Motor. To make sure your saw chains get the best sharpening job possible, we gave the Roughneck Bench-or Wall-Mount Chain Grinder a powerful 230W, 110V, 60 Hz motor that operates at a maximum of 3600 RPM. This motor gives the grinding wheel all the power it needs to do the job quickly and safely.