Motor Type: Universal (Series-Wound) AC Motor with Carbon Brushes

Rated Voltage: 220–240 V AC, 50 Hz

Rated Power: 300 W (washing) / 500 W (spin) — dual rating

No-Load Speed: 10,000–12,000 RPM (depending on load and voltage)

Rated Speed (under load, wash): 4,000–6,000 RPM

Rated Speed (under load, spin): 10,000–12,000 RPM

Torque (wash): 2.5 Nm (nominal)

Torque (spin): 1.8 Nm (nominal)

Insulation Class: Class B (130°C) / Class F upgrade available in some revisions

Protection Class: IP44 (splash-proof)

Mounting Type: 4-bolt flange mount with rubber vibration dampers

Shaft Type: D-shaped shaft (22 mm diameter) with pulley groove for belt drive

Pulley Diameter (compatible): 120 mm (standard for AEG washing machines)

Belt Type: Poly-V belt, 1253 mm length, 6 ribs (J6 profile)

Carbon Brush Dimensions: 5 x 8 x 17 mm (2 brushes, spring-loaded)

Commutator Diameter: 30 mm

Commutator Segments: 36 segments

Weight: 3.8 kg (motor only, without pulley)

Dimensions (L x W x H): 280 x 180 x 220 mm (approximate, excluding shaft)

Compatible Models: AEG Lavamat 5000/6000/7000 series, Electrolux EW6F3R, EW6F3S, and equivalent models using 121-series motors

Material Composition:

• Stator laminations: Silicon steel (0.35 mm, grain-oriented)
• Stator windings: Copper wire (Class B/F enamel insulated)
• Rotor (armature): Silicon steel laminations, copper windings, 36-segment commutator
• Shaft: Carbon steel, chrome-plated
• Housing: Aluminum die-cast with steel end bells
• Brushes: Electro-graphite carbon with copper powder
• Vibration dampers: Natural rubber with metal inserts

Working Principle: AC current flows through both the stator field windings and the rotor (armature) windings in series. The interaction between the stator magnetic field and the rotor current produces torque. The commutator and carbon brushes reverse the rotor current direction every half-cycle, maintaining unidirectional rotation. Speed is controlled by varying the applied voltage (triac-based in modern machines) or by series resistance (in older models).

Applicable Industry: Washing machine manufacturing, appliance repair and servicing, OEM spare parts supply

Installation Requirements:

• Mount using 4 M8 bolts with rubber dampers to the machine frame
• Align pulley with drum pulley using a straight edge or laser alignment tool (tolerance ±0.5 mm)
• Tension the Poly-V belt to 15–20 kg deflection force at mid-span
• Connect carbon brush leads to the motor controller PCB
• Ensure electrical connections are secure (motor draws up to 2.5 A at 240 V during spin)

Usage Precautions:

• Replace carbon brushes every 3–5 years or when worn below 5 mm length
• Check commutator surface for scoring or pitting during brush replacement
• Do not operate the motor without the pulley belt connected (overspeed damage risk)
• Ensure proper belt tension; loose belt causes slippage and overheating
• Verify insulation resistance is > 2 MΩ (megger test at 500 V DC) before installation