Designing specialty motors that handle wide variations in temperature often includes three component adjustments

the type of magnet used in the rotor stack	the magnet wire used to wind the motor	the type of bearings used

Magnet performance degrades at high temperatures unless a special alloy with high-temperature tolerance and high curie point is used—similar to what might be used in a space or vacuum motor depending on the application. For these applications, the wire has to have special insulation that can tolerate high heat as well. Upgraded insulation also helps to reduce stress fractures doe to heat-up and cool-down cycles. Type II motors require additional insulation material to prevent burnout.
The bearings for hot/cold motors require special grease dependent on whether they are used in high or low temperature and can be selected at the time of purchase for the specific application they will be used for.
Through the use of higher grade, specially formulated materials, motors can be designed for extreme temperatures well beyond what a standard motor can withstand. Other factors that can affect motor use in extreme temperature situations includes how often the load is applied. Most standard motor ratings are for continuous duty operation, but if your load cycling specifications are anything less than continuous, it will affect your motor selection process.
Although most Lin Engineering motors are available as Type I components, they currently have two standard Type II motors available:

Motor Options

Application Examples

Refrigerated Environments Medical and Laboratory equipment such as liquid handlers or devices exposed to moisture or particles.

Heated Environment Perfect for use in devices operating in heated environments or exposed to heat for extended periods of time.

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