KHK USA Inc. announces extensive line of metric screw gears

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KHK USA Inc. offers a large selection of gears, including carbon and stainless steel, aluminum bronze, and nylon. (Courtesy: KHK USA Inc.)

KHK USA Inc., distributor of the market leading KHK® brand of metric gears, announces its extensive line of metric screw gears, manufactured to the highest quality standards by Kohara Gear Industry Co. of Japan. KHK’s large selection of screw gears is suitable for a wide range of applications, including conveyors with light loads, and are offered in many materials, modules, and numbers of teeth.

KHK stock screw gears are available in economical S45C carbon steel as well as rust resistant SUS303 stainless steel, which is suitable for washdown applications including food machinery. Models made from corrosion-resistant and wear-resistant CAC702 (formerly AlBC2) aluminum bronze are also available.

The KHK catalog of stock screw gears also includes lightweight MC901 nylon screw gears that can be used without lubrication. KHK can also produce screw gears from other plastic materials, including Ultra High Molecular Weight Polyethylene (UHMW-PE), which has excellent abrasion resistance. Orders as small as one piece are acceptable and will be produced as a custom-made gear.

Screw gears are crossed helical gears with a fixed helix angle of 45 degrees. As such, they are the only helical gear pairing that can be used in either a left hand-left hand combination or a left hand-right hand combination. When used in a same hand combination, the gears operate with non-parallel and non-intersecting axes. In this fashion, they operate in a similar manner to miter or bevel gears. When used in an opposite hand combination, they act as traditional helical gear pairs.

All KHK screw gears allow for secondary operations such as opening of the bore, broaching of keyways, tapping threaded holes, or reducing the hub diameter to be performed. The catalogue includes products which have already had some of these secondary operations completed. These products are identified by a “J” in their part number and they can ship within five business days. The carbon steel screw gears are also available with hardened teeth. These products are identified by a “H” in their part number and they can ship within five business days.

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