Industrial ASM121-A-0-22-NB Servo Motor

BERKELEY PROCESS ASM121-A-0-22-NB is an AC brushless servo motor from Berkeley Process Control, designed for precise, repeatable motion in automated equipment. Catalog listings identify it as a 4,500 RPM device with 20 in-lb of torque (continuous rating), placing it in the mid-range torque category for compact servo motors used in packaging, pick-and-place, and CNC-like applications. The unit carries an insulation Class F rating and an IP65 sealing class, which helps it withstand dust and washdown environments common in electronics manufacturing and automation. Several listings and repair catalogs confirm the ASM121-A-0/B-22-NB/10 variant as part of the same family, reinforcing its role as an AC brushless servo motor used across automation and semiconductor equipment. Manufacturer and distributor records show the ASM121 series is frequently sourced as a replacement part for older Berkeley automation systems, underscoring its established presence in legacy tooling and repair inventories.