Synchron Clock Motor – Series 630 – 1 RPM – 110V 60 Cycles – 4W – CLOSEOUT

Synchron Clock Motor – Series 630 – 1 RPM – 110V 60 Cycles – 4W – Model K146RD-6

This Synchron clock motor, Series 630, is a genuine piece of new old stock designed for applications requiring reliable, steady low-speed rotation. Based on the original markings, the motor operates on 110V / 60 cycles, delivers a 1 RPM output, and has a 4-watt power rating. Like other synchronous clock motors, its speed is governed by line frequency, providing consistent and accurate rotation over long periods of continuous use.

With its 1 RPM output, this motor is commonly used in electric clocks, rotating displays, timing mechanisms, advertising signs, holiday displays, and slow-turning mechanical assemblies where precise, continuous motion is required. These motors are especially valued in restoration work for vintage electric clocks and equipment originally designed to run at a fixed rotational speed.

The motor is marked K146RD-6 with a date code of 2-84, indicating February 1984 manufacture. This model is no longer produced, and remaining inventory is limited.

Product Details
Type: Clock motor
Manufacturer: Synchron
Series: 630
Model / Marking: K146RD-6
Date Code: 2-84
Output Speed: 1 RPM
Voltage: 110V
Frequency: 60 cycles
Power Consumption: 4 watts
Duty Cycle: Continuous
Condition: New old stock
Availability: Discontinued – no longer made

Features & Uses
Line-frequency controlled motor for stable, consistent rotation
1 RPM output ideal for electric clocks and slow rotation mechanisms
Designed for continuous, long-term operation
Suitable for restoration or replacement in vintage clock and display systems