NL40B Cast Iron Spur Gear 3mm ID Pilot bore can be opened

Pilot bore can be opened to the nominal ID reflected in the part number

Pressure Angle: 20 Degrees

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worms and worm gears operating together must have the same diametrical pitch and threads

Catalog Product Section

NL40B Cast Iron Spur Gear 3mm ID Pilot bore can be openedBoston Gear spur gears are designed to transmit motion and power between parallel shafts. The different styles offered include spur, gear rack, pinion wire, stem pinions, and internal gears, and most come with a selection of bore diameters, keyways, and setscrews to accommodate a wide variety of application requirements. They are available in plastic, non metallic, brass, steel, and cast iron and are manufactured in a variety of styles, including