Boston Gear RA1531 Right Angle Gear Reducer One To One

The Boston Gear RA1531 Right-Angle Gear Reducer is a 1:1 spiral bevel drive that changes shaft direction without altering speed, ideal for conveyors, material handling equipment, packaging machinery, and other industrial automation systems where a 90° power transfer is required. Manufactured by Boston Gear (Regal Rexnord), the RA1531 uses spiral bevel gearing with precision ball bearings and is factory pre-lubricated for life, with a solid input shaft (3/4") and a solid output shaft (3/4"), delivering an output speed of 1750 RPM. The housing is aluminum alloy or cast (series dependent), and the torque rating is approximately 125–151 in-lb depending on service class. Its 1:1 ratio supports synchronized motion control in industrial machinery such as conveyors, assembly lines, and packaging equipment, while common replacements include Nord SK right-angle bevel gearbox (1:1 ratio class equivalent), Dodge Tigear right-angle gearbox (spatial drive equivalent class), and Bonfiglioli right-angle bevel gearbox (1:1 industrial duty equivalent).