Using a back-to-back gauge for your model railway ensures that the wheels on your rolling stock are spaced correctly...
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How do I use a back to back gauge?Read more -
What is a poly-cap?Read moreA poly-cap is a type of plastic cap often used in model-making kits, especially for assembling figurines or model...
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What is Graham Farish?Read moreGraham Farish is a name you’re likely to come across if you're interested in British model railways, especially in...
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When did semaphore signals stop being used in the UK?Read moreSemaphore signals, those distinctive mechanical arms that once graced railway lines across the UK, were largely...
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What is Kato track?Read moreKato track is a popular choice in the world of model railways, known for its quality, ease of use and versatility. If...
What is the difference between a 3 pole motor and a 5 pole motor?
Regardless of whether your locomotive uses analogue or DCC to operate, the principles of its motor will be the same, and both can come with either a 3-pole or a 5-pole motor. But what's the difference?
Ignoring any posh or sophisticated circuitry, at the heart of your model there is an electric motor. The motor works using a series of coiled-wire electromagnets attached to a cylinder or wheel-like contraption in the centre of the motor. In addition to this, the encompassing motor shell has regular magnets placed around its inner wall. When power is applied to the electromagnets, they are drawn towards the regular magnets and movement is achieved. This is the basic principle of a model railway locomotive's electric motor.
The physical difference between a 3-pole and 5-pole motor is the number of coiled electromagnets on the centre wheel. A 3-pole motor has three electromagnets and a 5-pole motor has five.
The difference in performance between a 3 and 5-pole motor is generally smoothness with most modellers agreeing that 5-pole motors outperform the lesser variant.
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