Gear Motions Inc. of Syracuse, N.Y., acquired Buffalo, N.Y.-based Niagara Gear Corp., a manufacturer of precision ground spur, helical and pump gears for a diverse customer base. Niagara Gear joins Gear Motions’ group of companies, which also includes Nixon Gear (Syracuse) and Oliver Gear and Pro-Gear (both of Buffalo). The deal will allow Gear Motions to offer more precision applications to a wider customer base and permits Niagara Gear to supply larger ground and cut spur and helical gears to its existing customers. Gear Motions expects to expand its custom precision-gear business by almost 40% with this acquisition.