Product Details

The Danaher Motion 401-34320-01, also marked as Giddings & Lewis FSM460 brushless servo motor, is a discontinued high-performance permanent magnet synchronous servo motor built for legacy CNC and motion control systems. This brushless servo motor delivers smooth, precise torque and velocity output to drive feed axes on machine tools and automated production equipment. As a reliable FSM460 servo motor, it integrates high-resolution position feedback, robust stator winding and heavy-duty bearing assembly, resisting continuous cyclic load, vibration and temperature fluctuation inside harsh factory environments. This Giddings & Lewis servo motor is widely used as an original replacement unit for ageing motion axes, restoring accurate positioning and synchronous movement for automated machinery; it is stocked as genuine replacement spare part for industrial motion control systems.

Basic Parameters

Brand: Danaher Motion (Giddings & Lewis / Kollmorgen)

Model: 401-34320-01, FSM460

Type: Brushless AC permanent magnet servo motor

Rated speed: 4000 RPM

Continuous torque: 6.9 Nm

Peak torque: 61 Lbin

Rated power: 2.5 kW

Continuous RMS current: 12 A

Frequency range: 0–267 Hz

Feedback: Integrated encoder / resolver

Compatible drive: Matching Danaher Motion / Giddings & Lewis servo amplifiers

Status: Obsolete original unit, available as new old stock or fully tested refurbished spare

Product type: Industrial CNC brushless servo motor

Supported Functions

This servo motor converts electrical commands from servo amplifiers into precise rotary motion for machine feed axes. It supports closed-loop position, speed and torque control for continuous machining and automation cycles. The built-in feedback device sends real-time angular position and speed data back to the drive to correct tracking error. It can maintain stable low-speed rotation and deliver instant peak torque for rapid acceleration and deceleration during high-speed motion sequences. It also outputs thermal and fault signals for equipment protection and diagnosis.

Core Functions

The rugged mechanical construction is engineered for long runtime under frequent start-stop operation on CNC machines. Its matched feedback interface guarantees seamless communication with original legacy servo drives without extra signal conversion. Standard mounting flange and shaft dimensions allow direct drop-in swap for the original motor, requiring no major mechanical modification during replacement, and it serves as direct drop‑in substitution for existing 401-34320-01 FSM460 servo motors.

Hardware Specifications & Environmental Features

Mounting: Standard flange mounting

Operating temperature: -10 °C to +40 °C

Storage temperature: -40 °C to +85 °C

Relative humidity: 5% – 90%, non‑condensing

Protection class: Industrial IP rating for machine installation

Condition: Original Danaher Motion brushless servo motor

Industry Applications: Applied in legacy petrochemical distributed control, old paper making production automation, material handling conveyor lines, packaging and textile machinery, water treatment remote signal collection and large conveyor remote I/O control racks.

Note: Confirm servo drive model, feedback protocol, flange and shaft dimension before ordering; this servo motor is manufacturer discontinued and parameter tuning is required after replacement.

This is from our current stock.

available stock.xlsx