Tung Lee 4RK25GN-C Reversible Motor 25W 200-220VAC 4GN-18 Gear Head BD-103-005

Tung Lee 4RK25GN-C Reversible Motor 25W 200-220VAC 4GN-18 Gear Head BD-103-005

This is a Tung Lee Electrical 4RK25GN-C single-phase reversible AC induction motor paired with a 4GN-18 gear head and a BD-103-005 P110 indexing drive, offered as a complete integrated assembly. The motor is a compact, capacitor-run reversible type capable of running in either direction, mounted to an aluminum-framed assembly that incorporates a toothed belt drive system, dual pulleys, and a linear rack — forming a complete motorized indexing or positioning drive unit.

Specifications & What's Included

• Motor Model: Tung Lee Electrical 4RK25GN-C Reversible Motor
• Power Rating: 25W
• Voltage: 200–220V AC
• Current: 0.35A
• Frequency: 50/60Hz
• Capacitor: 2 µF
• Speed: 1250/1550 RPM
• Phase: Single Phase
• Certifications: CE marked (visible on motor label)
• Gear Head Model: Tung Lee Electrical 4GN-18
• Indexing Drive: BD-103-005 P110
• Belt Drive: Unitta toothed timing belt with dual sprocket/pulley system
• Linear rack gear integrated into the aluminum slide frame
• Optical/magnetic indexing sensor assembly with disc (visible on drive end)
• Wiring harness with red and black connector leads
• Sold as complete integrated assembly

Applications

Tung Lee Electrical reversible motors of this type are widely used in industrial automation, precision positioning, and light-duty motion control applications. The 4RK series is a standard capacitor-run induction motor designed for bidirectional operation — the motor reverses direction by switching the capacitor between the main and auxiliary windings, making it suitable for back-and-forth indexing tasks without a separate reversing relay. Paired with the 4GN-18 gear head, output torque is multiplied and speed is reduced to suit precision linear or rotary movement. The BD-103-005 indexing drive, together with the belt-and-rack assembly visible in the photos, forms a complete servo-like positioning stage commonly used in semiconductor handling, printed circuit board assembly equipment, optical instrument stages, or other factory automation systems requiring repeatable, controlled linear or angular motion. This style of integrated motor/gearhead/indexing assembly was common in Japanese and Taiwanese industrial machinery from the 1980s through 2000s and remains in active use in legacy machine maintenance and replacement applications.