Introduction
Motor windings and spare parts are components used in electric motor operation, maintenance, and repair. Windings consist of insulated conductors arranged in the stator or rotor to generate magnetic fields, while spare parts include replaceable components such as carbon brushes, tachogenerators, and slip rings.
PUTAI supplies industrial motor windings and spare parts for equipment OEMs, motor repair companies, distributors, and maintenance teams. The product range includes D374N DC motor carbon brushes, tachogenerator DC motor spare parts, high-voltage motor stator windings, and slip rings for wound-rotor AC motors.
For OEM projects and replacement orders, PUTAI supports component identification and specification matching based on available motor data, drawings, dimensions, and application requirements. Providing accurate technical information helps reduce the risk of ordering incompatible parts.
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D374N Carbon Brush Small Dc Motor BrushesPUTAI D374N carbon brushes are listed for compatible Z4 and Z series DC motors, with 18 listed size entries for industrial replacement and maintenance requirements. The product serves motor OEMs,...
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Tachogenerator DC Motor Spare PartsPUTAI supplies ZYS-A permanent magnet DC tachogenerators for speed measurement in industrial DC drive systems. The range serves equipment OEMs, motor repair companies, maintenance teams, and spare...
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High Voltage 3 Phase Induction Motor WindingPUTAI manufactures high-voltage stator windings for motor OEMs, distributors, repair workshops and industrial maintenance teams. They support new motor production, motor overhaul and replacement...
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High Voltage Motor Slip Ring AC Motor SparesPUTAI supplies copper slip rings for high-voltage wound-rotor AC motors, with listed inner diameters of 55–145 mm and outer diameters of 120–250 mm. The product serves motor OEMs, spare-parts...
Product Range and Technical Specifications
D374N Carbon Brushes for DC Motors
PUTAI supplies D374N carbon brushes for Z4 and Z series DC motors, covering 18 listed model and size configurations.
These brushes are used in industrial equipment such as rolling mills, hoisting systems, cranes, and generators. Replacement matching involves checking the brush designation, cross-sectional dimensions, length, brush holder, and motor model.
Tachogenerator DC Motor Spare Parts
ZYS-A permanent magnet DC tachogenerators provide rotational-speed feedback for DC drives and industrial speed-control systems. Their electrical output parameters vary by model and operating requirements.
Key parameters include output voltage, output current, output power, rated speed, and load resistance. For replacement applications, the model, rated speed, output voltage, load resistance, mounting dimensions, and electrical connections are important matching details.
High-Voltage Three-Phase Induction Motor Windings
PUTAI supplies stator windings for high-voltage three-phase induction motors, using oxygen-free copper flat wire and F- or H-class epoxy mica tape insulation. Applicable coil-forming, insulation, and VPI processes are used according to the winding requirements.
The listed applicable motor series include Y2, YKK, YRKK, and YXKK. Replacement winding work requires relevant motor data and original winding information, including slot dimensions, coil geometry, conductor arrangement, and insulation requirements. Rated voltage and power alone are not sufficient to establish winding compatibility.
High-Voltage Motor Slip Rings
PUTAI supplies copper and copper-alloy slip rings for high-voltage wound-rotor AC motors. The listed dimensional ranges are:
• Inner diameter: 55–145 mm
• Outer diameter: 120–250 mm
Applicable motor types include YR, YRKK, YRKS, JR, and YRQ. Matching requirements include the motor model, inner and outer diameters, ring geometry, mounting dimensions, and electrical connections. The listed dimensional ranges do not mean that every combination is available.
Replacement Matching and Technical Requirements
A suitable replacement must meet the original component's relevant mechanical and electrical requirements. Similar appearance, motor series, or nominal dimensions alone do not establish interchangeability.
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Component |
Key Matching Information |
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D374N Carbon Brushes |
Brush designation, dimensions, length, brush holder, motor model |
|
ZYS-A Tachogenerators |
Model, rated speed, output voltage, load resistance, mounting and connections |
|
Motor Windings |
Motor model, winding drawings, slot dimensions, coil geometry, conductor arrangement, insulation system |
|
Slip Rings |
Motor model, inner and outer diameters, ring geometry, mounting and electrical connections |
Industrial Applications
PUTAI windings and spare parts serve maintenance, repair, and equipment supply requirements across a range of industrial sectors:
Steel and Metallurgy: Carbon brushes, motor windings, and slip rings for rolling mills and industrial drive systems.
Mining and Heavy Industry: Components for lifting equipment, heavy-duty drives, and plant machinery.
Cement and Power Generation: Motor and generator components for equipment maintenance and repair.
Motor Repair and Rewinding: Stator winding replacement and sourcing of compatible motor components.
Industrial Automation and DC Drives: Tachogenerators for rotational-speed measurement and feedback.
OEM Production and Distribution: Component supply for equipment manufacturing, after-sales service, and planned maintenance.
Component suitability depends on the original motor design, operating conditions, and required specifications.

Manufacturing Background and Quality Assurance
PUTAI has more than 25 years of experience in the motor industry. Its broader manufacturing operation covers AC motors, DC motors, medium-voltage motors, large synchronous motors, starters and drives, as well as motor windings and spare parts.
The company operates a 200,000 m² plant with more than 120 employees, including 18 technical engineers. Its motor manufacturing processes include silicon-steel preparation, copper winding, insulation, VPI and drying, assembly, and dispatch testing.
For windings and spare parts, technical verification focuses on the requirements relevant to each component:
Carbon Brushes: Grade, dimensions, brush holder fit, and motor compatibility.
Tachogenerators: Model, output parameters, rated speed, load resistance, mounting, and connections.
Motor Windings: Winding drawings, conductor arrangement, coil dimensions, and insulation requirements.
Slip Rings: Material, dimensions, mounting details, and electrical connections.
Inspection records and technical documentation depend on the component type and agreed order requirements. Their availability can be discussed for individual projects and orders.

OEM Supply and Replacement Support
PUTAI supports component supply for new equipment projects, replacement requirements, and repeat orders.
For OEM projects, buyers can provide the target motor or equipment specifications, component drawings, required quantities, and project requirements. This information helps clarify the component design and applicable specifications.
For replacement and maintenance orders, the original part number or motor model, nameplate information, component photos, and available measurements help identify the required part.
Mounting and connection details are particularly useful when the original component is damaged or its markings are unclear.
For repeat orders and distributor supply, confirmed part numbers, drawing revisions, and agreed specifications help maintain consistency between orders. Multiple component requirements can also be submitted together for review.

Frequently Asked Questions
We are one of the most professional windings & spare parts manufacturers and suppliers in China, also support customized service. With abundant experience, we warmly welcome you to buy advanced windings & spare parts made in China here from our factory. For price consultation, contact us.
