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Abrasives, Cutting Fluids, Cutting Tools, Engineered Plastics, Power Transmission Products
Industrial Distributor of abrasives, band saws, bearings, bronze bushings & materials, cable ties, carbide, chemicals & cutting fluids, conveyor components, cutting tools, fasteners, engineered plastic sheet, rod, tube & film, hanger bearings, gaskets, gears, hand tools, heat shrink tubing, machinery, material handling, measuring tools, plant equipment, plastic components, power tools, power transmission products, pulleys, roller chain, router bits, safety products, saw blades, screw conveyors, sheaves, spill kits, tool storage, welded chain, welding supplies and workholdings. Offering services: gaskets, gear cutting, machine guards, plastic fabrication, plastic machining, plastic welding and swiss screw machining.
A ratchet gear consists of a round gear or linear rack with teeth, and a
pivoting, springloaded finger called a pawl that engages the teeth. The
teeth are uniform but asymmetrical, with each tooth having a moderate
slope on one edge and a much steeper slope on the other edge.
When the teeth are moving in the unrestricted forward direction, the pawl
easily slides up and over the gently sloped edges of the teeth, with a spring forcing it (often with an audible 'click') into the depression between the teeth as it passes the tip of each tooth. When the teeth move in the opposite (backward) direction, however, the pawl will catch against the steeply sloped edge of the first tooth it encounters, thereby locking it against the tooth and preventing any further motion in that direction.
B.I.R.S. Machine & Supply supplies ratchet gears to your specification.