Servo Motor

CNC Electric Motor – NSK YS2020GN011

The YS2020GN011 is a CNC axis control electric motor (“CNC Axis Motor”) manufactured by NSK, belonging to the YS series within NSK’s precision motion control line. The part number YS2020GN011 identifies the constructive variant, winding specification and mechanical configuration of the motor. The component is used as a rotary actuator in servo-axis systems or spindle drive applications on machining centres, CNC lathes and precision grinding machines. It is compatible with dedicated NSK servo drives or equivalents, with feedback via an integrated encoder or resolver within the motor body.

The motor is the final actuator in the control chain: it converts the electrical signal from the servo drive into mechanical torque and rotary motion on the axis or tool. If it fails, the controlled axis or function becomes locked or uncontrollable, rendering the machine unusable until the component is replaced or repaired; typical symptoms include position loss, torque alarms or no response to movement commands.

NSK Ltd. is one of Japan’s leading manufacturers of motion control components: in addition to rolling bearings — for which it is universally known — NSK produces precision motors, linear guides and drive systems for CNC machine tools. Founded in 1916, NSK is a de facto reference for high-precision applications thanks to its superior build quality and reliability proven over decades of industrial use. Models from the YS series of earlier production are to be considered legacy / discontinued: verify availability with authorised distributors or through specialist used-parts channels.

Main Technical Specifications

CNC Servo Motor – NSK YS3040GN011

The YS3040GN011 is a precision CNC servo motor (“CNC Servo Motor”) manufactured by NSK, belonging to the YS series within NSK’s machine tool drive product line. The unit is designed for high-precision axis control on machining centres, grinding machines, and CNC systems that demand high positioning repeatability. The part number YS3040GN011 identifies the complete motor assembly including the integrated encoder; accessories such as connector kits and cables must be ordered separately according to the machine builder’s documentation.

The servo motor is the electromechanical actuator that converts the CNC reference signal into controlled rotary motion on the machine axis: it maintains the programmed position and speed even under load variations, thanks to the encoder feedback loop to the servo drive. A motor failure — caused by open windings, a damaged encoder, or worn bearings — completely disables the affected axis, rendering the machine inoperable until the component is replaced or repaired.

NSK Ltd. is a Japanese manufacturer founded in 1916 and a world leader in rolling bearings, ball screws, linear guides, and precision motors for machine tools. NSK’s Motion & Control division supplies ultra-precision components to the aerospace, automotive, and manufacturing sectors. Products in the YS series are classified as legacy / discontinued: available exclusively as used, NOS surplus, or through specialist overhaul.

Main Technical Specifications

CNC Electric Motor – NSK Y4082

The Y4082 is a CNC machine tool electric motor (“CNC Electric Motor”) manufactured by NSK Ltd., designed for use as an axis or spindle actuator in machining centres and CNC machine tools. The motor interfaces with the dedicated drive/inverter of the control system, delivering the dynamic performance required by high-precision machining cycles. Refer to the machine documentation to confirm compatible revisions and variants.

The motor is the primary actuator of the axis or spindle: it converts electrical energy into mechanical torque and responds in real time to CNC commands for positioning, speed and acceleration. A motor failure causes immediate shutdown of the affected axis, resulting in total machine downtime and inability to complete the machining cycle; in continuous-production environments even a short stoppage incurs significant losses.

NSK Ltd. (Nihon Seiko Kabushiki Kaisha) is a Japanese manufacturer founded in 1916, Japan’s first ball bearing producer and today a world leader in precision bearings, linear technology and CNC machine tool components. NSK’s motion control division supplies high-precision motors and actuators to major OEM machine tool builders worldwide. Availability of the specific part number should be verified, as some series of NSK CNC motors may be legacy / discontinued.

Main Technical Specifications