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TECO MaxE3 High Efficiency Motors from HMA Flow & Industrial are high efficiency to AS1359.5 2004, with a rugged cast-iron frame, terminal box, and cooling fan. A fabricated steel terminal box is available as an option for motors 185 kw and larger. Features include a flush trough grease relief lubrication system with labyrinth seals, fully tropic-proofed, Class F insulation with temperature rise to less than Class B, IP66 enclosure, porous screw-in type drain plugs, heavy-duty bearings and oversized shaft for motors 185 kw and larger for arduous belt-drive applications. A set of PTC thermistors is supplied for the D160 frame, and two sets for 185 Kw and larger.
The TECO through-flush grease-relief bearing system gives positive displacement of old grease, and is designed for re-greasing during operation. The fitment of rotating inner and outer labyrinth seals achieves effective sealing from ingress of contamination. This is a genuine pressure grease-relief system whereby grease enters the back of the bearing, and then is forced through to the front, and is expelled through a large external discharge chute. This system does not allow over-greasing to affect the performance of the bearing itself, which can result in premature failure. An additional brass dust flinger is also fitted on frames D280 and larger.