Servo Motor Repair, Replacement, and Surplus Motor Availability

Contact Wake Industrial by calling 1-919-443-0207, sending an email to sales@wakeindustrial.com, or by filling out the quote form on this page to receive a comprehensive, industry competitive quote FAST. Wake Industrial supplies repair, replacement, and surplus options for industrial servo motors, synchronous motors, induction motors, integrated servo drives, and stepper motors used in automated machinery. Facilities contact Wake Industrial when a servo motor has encoder feedback faults, winding damage, brake failure, connector damage, bearing wear, overheating, contamination, or physical damage from machine crashes. Wake Industrial is not an authorized distributor of these manufacturers and does not provide OEM technical support, but we can help source, repair, refurbish, or replace industrial automation motors used in production equipment. 

Servo motors can fail or operate inconsistently when electrical, mechanical, or environmental conditions fall outside the motor’s intended operating range. Common causes include bearing wear, winding degradation, encoder or resolver feedback issues, brake wear, connector damage, insulation breakdown, and contamination inside the motor housing. These problems may appear as axis instability, positioning errors, overheating, excessive noise, drive faults, intermittent feedback loss, or a complete failure to start.

Mechanical wear is one of the most common causes of servo motor malfunction, especially in motors exposed to high duty cycles, frequent acceleration and deceleration, or misaligned loads. Bearings, seals, shafts, and brakes can degrade over time, which may increase friction, create vibration, or affect positioning accuracy. Electrical problems can also damage a servo motor, including unstable supply voltage, improper grounding, phase imbalance, shorted windings, damaged cables, or incorrect drive parameters.

Excessive heat can shorten motor life by weakening winding insulation, stressing feedback electronics, degrading bearing lubrication, and reducing the effectiveness of seals. Contamination from coolant, oil, dust, moisture, metal particles, or washdown exposure can also lead to corrosion, short circuits, encoder failure, and insulation damage. In many cases, servo motor failure is the result of multiple issues occurring together, such as worn seals allowing contamination into a motor that is already running hot.

Regular inspection and preventive maintenance can help identify motor problems before they cause machine downtime. Check for abnormal noise, shaft play, vibration, overheating, damaged connectors, loose cables, brake issues, and signs of oil, coolant, or moisture intrusion. Make sure the motor is properly aligned with the driven load and that belts, couplings, gearboxes, and mounting hardware are not creating excessive radial or axial stress.

Electrical conditions should also be checked during routine maintenance. Verify that the drive, motor, feedback cable, power cable, grounding, shielding, and brake circuit are installed correctly and remain in good condition. Keep the motor operating within its rated temperature, current, speed, torque, and duty-cycle limits, and make sure the surrounding environment is clean, dry, and properly ventilated whenever the application allows.

The Bosch Rexroth Indramat MSK IndraDyn S synchronous motor series are used in compact servo-axis applications that require high torque density, precise feedback, and reliable operation with modern drive controllers. These motors use permanent-magnet synchronous construction and are commonly found on packaging machines, handling systems, machine tools, printing equipment, and general motion-control platforms. The MSK series includes multiple frame sizes, winding speeds, feedback configurations, shaft options, and holding-brake combinations, making the full type code important when matching a replacement. When an MSK servo motor fails, the replacement must match the mechanical mounting, feedback interface, winding characteristics, shaft option, and connector configuration to avoid commissioning problems.

MSK motors are often selected for dynamic positioning tasks where smooth torque, encoder accuracy, and compact dimensions matter. These motors are built around IP65-rated construction and thermal class 155 data, which makes them suitable for many enclosed industrial environments when installed correctly. Wake Industrial can evaluate MSK servo motors for failure symptoms such as encoder alarms, winding shorts, brake faults, damaged connectors, contaminated housings, and worn bearings.

The Bosch Rexroth Indramat MSK101E-0200-NN-M3-AG0-NNNN is an IndraDyn S Synchronous Servomotor from the MSK IndraDyn S Synchronous Motors series. It features a plain shaft, operates using natural convection cooling, and has a protection rating of IP65. The motor is equipped with a Hiperface multiturn absolute encoder that uses capacitive technology and provides a resolution of 16 signal periods.

The Bosch Rexroth Indramat MKD synchronous motor series is a legacy servo motor platform used as servo and main drive motors in machine tools, packaging machines, printing equipment, food-processing systems, and automated handling machinery. MKD motors are permanent-magnet synchronous motors designed for closed-loop operation with compatible drive systems and application-specific feedback options. The type code defines frame size, motor length, winding, feedback, shaft, connector orientation, and holding-brake configuration, so replacing an MKD motor by frame size alone is not enough. MKD041 motors serve smaller machine axes, while MKD112 motors support higher torque applications and larger mechanical loads. Matching the full MKD part number is especially important because the same frame can appear with different winding speeds, rated power values, feedback combinations, and shaft configurations.

MKD motor failures often show up as feedback loss, brake failure, winding insulation breakdown, bearing noise, excess heat, or position-control faults. Wake Industrial can support replacement sourcing and repair evaluation for MKD motors when obsolete Indramat hardware is still required to keep a production line running.

The Bosch Rexroth Indramat MKD112C-024-GG0-LN is a servo motor that is part of the MKD Synchronous Motors series. It features a continuous torque at standstill of 38.0 Nm and a plain shaft design with a shaft seal. The motor has a resolver feedback encoder, an insulation class F, and is protected with an IP65 category.

The Bosch Rexroth Indramat 2AD series is a line of squirrel-cage asynchronous motors with housed construction and external blower ventilation. These motors are used where a robust industrial AC motor must operate with compatible Rexroth Indramat drive controllers for spindle, main-drive, and heavy-duty motion applications. The 2AD family covers a wide power range and includes different frame sizes, windings, blower arrangements, encoder options, output directions, shaft designs, and holding-brake choices. A 2AD type code includes mechanical and electrical details that affect mounting, cooling, connection orientation, feedback, and compatibility with the installed drive system. Because 2AD motors are frequently used on large production machinery, replacement accuracy is critical when a failed unit is tied to a spindle or main motion axis. 

The motor protection class is IP65 for the motor body in the referenced data, while blower protection and connection details vary by motor configuration. Many 2AD failures involve bearing wear, blower issues, encoder feedback problems, thermal faults, insulation breakdown, power connector damage, or contamination from the machine environment. Wake Industrial can help with repair evaluation, replacement sourcing, and surplus availability for obsolete 2AD induction motor part numbers.

Manufactured by Bosch Rexroth Indramat, the 2AD134D-B35OB1-CS06-B2V1 is a high-performance, 3-phase AC induction motor belonging to the 2AD series. Designed for flange and foot mounting with a top-mounted power connection facing Side B, this 26 kW motor delivers a substantial rated torque of 160 Nm. It features an integrated axial blower for efficient cooling, digital servo feedback, and is capable of reaching a peak operating speed of 7,500 rpm.

Pacific Scientific S Series brushless servo motors are 6-pole neodymium servo motors built for high torque per frame size and medium inertia load matching. The S Series model number identifies the NEMA frame size, stack length, winding, shaft and mounting style, brake option, feedback, shaft sealing, termination style, secondary feedback, and standard or custom sequence. These motors are designed around rugged TENV construction, IP65 washdown-style protection, steel bearing inserts, overtemperature thermistor protection, high-voltage insulation, and optional encoder feedback. S31, S32, and S33 part numbers belong to the NEMA 34 frame group with different stack lengths, giving the series flexibility across torque requirements without changing the broad mounting family. For replacement work, the exact order code matters because a similar S Series motor can have different feedback, connector, shaft, or sealing options.

These part numbers include high-voltage construction and motor-mounted MS connector termination, making connection style a key part of the replacement match. The “N” shaft and mounting code indicates NEMA frame construction, while the feedback-related characters distinguish resolver, Hall sensor, and secondary feedback choices. Since these motors are often installed in legacy servo systems, replacement work should consider both the motor and the drive feedback interface. Wake Industrial can evaluate Pacific Scientific S Series motors for winding damage, thermistor issues, feedback faults, connector damage, worn bearings, and replacement availability.

Pacific Scientific POWERMAX II M Series motors are NEMA 23 stepper motors designed for compact high-torque motion applications. The M Series is the enhanced POWERMAX II construction and supports unipolar or bipolar winding configurations, full-step resolution of 200 steps per revolution, and a 1.8-degree step angle. These motors are commonly used in lower-load indexing, positioning, feed, and automation mechanisms where stepper simplicity is preferred over closed-loop servo complexity. POWERMAX II M motors include options for shaft flats or keyways, rear shafts, flying leads, motor-mounted connectors, encoder mounting provisions, and incremental encoder configurations. When replacing one of these motors, the complete M22NSXA order code should be preserved because the suffix determines shaft, connector, winding, rotor, and encoder-related options.

These motors share a 1.8-degree step angle and 200 full steps per revolution, making them appropriate for incremental motion when paired with the correct stepper drive. The suffixes identify the specific modification package, which can include shaft, encoder, or connector differences. Wake Industrial can help replace or source POWERMAX II stepper motors when the exact order code is needed to restore a machine without redesigning the axis.

Pacific Scientific Powersync synchronous motors are AC synchronous motors designed for low-speed, constant-speed bidirectional motion. These motors operate from standard AC line voltage, and their synchronous speed is tied to line frequency rather than to a servo feedback loop. The family is commonly used for conveyor systems, carousel rotation, dispensing machines, labeling equipment, packaging machinery, pumps, sorting machines, timing belt drives, and other applications where simple constant-speed motion is required. Powersync motors use NEMA 34 and NEMA 42 frame formats, Class B insulation, and construction options that include splashproof configurations, conduit or connector terminations, and multiple shaft choices. They are a practical alternative to geared induction motors when the application can use synchronous speed with mechanical gearing or belts.

The “SN” prefix identifies the standard synchronous motor series, while the following digits indicate frame and rotor-stack configuration. The cataloged family includes 72 rpm models for 120 Vac or 240 Vac at 60 Hz and 60 rpm models for 120 Vac or 240 Vac at 50 Hz, depending on the voltage/frequency code. Powersync motors are also noted for sealed NEMA/IP65-style splashproof requirements in applicable configurations and rated torque capability up to the family range. Wake Industrial can help source replacement Powersync motors when legacy constant-speed AC synchronous motors are no longer easy to obtain.

B&R Automation 8LS three-phase synchronous motors are used with B&R servo drive systems in industrial machinery requiring precision motion, high dynamic performance, and compact servo-axis packaging. The 8LS family includes different motor sizes, lengths, encoder systems, nominal speeds, connection styles, shaft options, oil seal options, and holding-brake configurations. These motors can be configured with EnDat feedback, resolver feedback, hybrid single-cable options, angled swivel connectors, smooth shafts, and keyed shafts depending on the exact order code. Matching an 8LS replacement requires attention to nominal speed, feedback, holding brake, shaft, and cable cross-section.

Because B&R motors store key parameter information in the encoder system, feedback compatibility is especially important when replacing one of these units. Wake Industrial can support 8LS repair and replacement needs involving brake wear, encoder communication errors, bearing issues, winding damage, oil seal contamination, and connector damage.

B&R 8MS three-phase synchronous motors were developed for high-performance industrial applications in packaging, plastics, food and beverage, metalworking, consumer-goods production, and material-handling systems. The series supports different encoder systems, including EnDat encoder options for higher precision and resolver options for applications with lower precision or speed requirements. The embedded parameter chip concept allows relevant electrical and mechanical motor information to be stored in the feedback system, which helps compatible servo drives identify the motor. 8MS motors use uniform connection technology and prefabricated cable systems to simplify machine integration and replacement. A complete replacement should match frame size, length, nominal speed, feedback code, brake configuration, shaft style, and connection direction. Wake Industrial can support B&R 8MS replacement searches when the exact motor code is needed to keep an ACOPOS-driven machine running.

B&R 8JSA three-phase synchronous motors are compact servo motors designed for precise industrial motion with integrated parameter support through the EnDat encoder system. The motor nameplate includes order code, revision, insulation class, protection class, rated torque, rated current, continuous stall torque, continuous stall current, DC bus voltage, rated speed, and serial number. The series includes multiple sizes and lengths, with nominal speed codes covering applications from low-speed torque output to high-speed compact servo motion. These motors are commonly used where small and medium servo axes require reliable feedback, quick commissioning, and repeatable replacement behavior. A complete 8JSA replacement should preserve the full part number, not just the 8JSA frame. 

Wake Industrial can help with 8JS motor repair and replacement when the fault involves resolver feedback, EnDat feedback, brake operation, bearings, winding condition, or damaged connectors.

Kollmorgen AKM synchronous servo motors are brushless DC servo motors designed for demanding positioning applications in industrial robots, machine tools, transfer lines, textile machinery, packaging equipment, and similar machines requiring dynamic motion. The AKM family uses permanent magnets in the rotor and a three-phase winding in the stator, with electronic commutation handled by the servo amplifier. The type code identifies flange size, flange standard, rotor length, winding type, connector style, brake option, feedback system, shaft design, and customization code. AKM motors can be supplied with resolver, ComCoder, SFD, EnDat, BISS, single-turn, or multi-turn feedback depending on configuration. Replacement accuracy depends on both the mechanical frame and the feedback/connector/brake details built into the exact part number.

Wake Industrial can support AKM repair and replacement needs involving resolver faults, feedback errors, winding problems, shaft damage, connector damage, overheating, and bearing wear.

Kollmorgen Goldline EB explosion proof servo motors are brushless synchronous servo motors designed for hazardous-location applications requiring approved motor construction and correct drive pairing. These motors use permanent magnet rotors and three-phase Y-stator windings, with internal resolver feedback used as part of the motor construction. EB motors are built for operation with compatible servo amplifiers and performance curves that assume a defined drive and motor combination. These motors should never be substituted casually because the explosion-proof construction, resolver feedback, voltage class, and frame size are all part of the safe replacement match.

EB motors are frequently found where a standard servo motor cannot be used because of the classified machine environment. Wake Industrial can assist with replacement sourcing and repair evaluation for EB motors when a failed hazardous-location servo motor is holding up production.

Kollmorgen 6SM synchronous servomotors are permanent-magnet servo motors used in closed-loop industrial motion systems. The 6SM series includes several frame sizes and lengths, with rated speeds from 3000 rpm to 6000 rpm depending on the model. The technical data defines standstill torque, standstill current, rated speed, rated torque, rated current, rated power, peak current, torque constant, voltage constant, winding resistance, winding inductance, pole count, resolver pole count, and brake response data where applicable. These motors use resolver feedback in the referenced series data and are intended for operation with appropriate servo drive systems. The exact model designation matters because 6SM27M, 6SM37L, and 6SM47L models have different torque, current, and power ratings. Wake Industrial can support 6SM replacement needs when a machine requires an older Kollmorgen synchronous servo motor with matching resolver and winding characteristics.

Beckhoff AM synchronous servomotors are used in EtherCAT-based automation systems requiring compact construction, high dynamic performance, and precise servo control. The AM8000 family includes multiple motor sizes, winding variants, feedback systems, shaft options, holding brake options, and connection technologies. Performance data is organized by frame and winding code, with standstill torque, standstill current, peak current, peak torque, torque constant, voltage constant, winding resistance, winding inductance, nominal speed, nominal torque, nominal current, and nominal output defined for the motor family. AM802x motors are compact servo motors, while AM806x motors are much larger, higher-torque units intended for heavier axes. When replacing an AM motor, the order code must match the winding, feedback, shaft, brake, connector, and supply requirements of the installed system.

Wake Industrial can help with Beckhoff AM motor sourcing or replacement when a failed servo motor creates downtime on an EtherCAT-controlled machine.

Beckhoff AS Stepper Motors are compact stepper motors used in lower-power positioning tasks and Beckhoff terminal-based motion-control systems. The AS1000 family includes AS1010, AS1020, AS1030, AS1050, and AS1060 motors with different holding torque, rated current, rotor inertia, resolution, weight, and protection classes. These motors use a 1.8-degree step angle with 200 full steps per revolution in the documented models. AS1010 through AS1050 are listed with IP43 protection for the motor body excluding the shaft bushing, while AS1060 is listed with IP20 protection. The AS1020, AS1050, and AS1060 groups can be used with incremental encoder options depending on the exact model configuration.

Beckhoff AMI compact integrated servo drives combine servo motor and drive electronics in a compact motor-mounted package. The AMI812x and AMI813x families use an integrated design with EtherCAT communication, I/O connection, 48 V DC / 24 V DC power connection, and feedback built into the drive-motor unit. The product family includes ordering options for feather key, holding brake, and drive-integrated safety technology. The AMI812x family uses a 17-bit single-turn or multi-turn encoder feedback system with standard accuracy listed for the series. These integrated servo drives reduce cabinet space and wiring complexity, but replacement requires the exact AMI part number because drive electronics, motor size, safety option, brake option, and feedback package are integrated into one unit. Wake Industrial can help source or replace AMI8100 integrated servo drives when machine downtime is caused by integrated drive faults, connector damage, feedback problems, brake faults, or motor-side mechanical wear.

When a servo motor, synchronous motor, induction motor, stepper motor, or integrated servo drive fails, Wake Industrial can help reduce downtime with repair evaluation, replacement sourcing, and surplus motor availability. We support obsolete and current industrial automation motor families from Bosch Rexroth Indramat, Pacific Scientific, B&R Automation, Kollmorgen, Beckhoff, and many other manufacturers used across CNC equipment, packaging lines, material handling systems, printing machines, food-processing equipment, robotics, and general factory automation. Wake Industrial is not an authorized distributor of these manufacturers. 

Send the full motor part number, photos of the nameplate, fault details, and any drive or machine alarm information so our team can identify the closest repair or replacement path. Call Wake Industrial today at 1-919-443-0207 for servo motor repair, replacement, and surplus availability. You may also send an email to sales@wakeindustrial.com, or fill out the quote form on this page to receive a comprehensive, industry competitive quote TODAY.