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| TM220M for medium duty
The internal parts of TM220M are designed to match irregular load conditions for normal heavy unit handling applications.
TM220H for heavy duty
A reinforced 3-stage gearbox and stronger bearings give the TM220H the ability to fulfil the increased requirements of heavy unit handling applications at low speeds, high torques
and high belt tensions.
The decision whether to use a TM220M or a TM220H should be made primarily on the calculated belt tension (T1+T2) plus any expected shock loading. Allowance for higher belt
tensions caused by thicker and/or wider belts must also be taken into consideration.
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