Mobil Polyrex EM™ grease helps extend electric motor bearing life

Electric motor

Equipment: Electric Motor Bearings
Plant: Ultratech Nathdwara Cement Ltd, Pindwara (ABG Group)
Address: Rajashtan, India

Situation
The Ultratech Nathdwara cement which operates high tension electric motor and blower. Electric motor used to operate Cooler fan, Ban Mill and many gear boxes where temperature up to 70°C and were experiencing , Resulting Premature bearing failures. Company approached ExxonMobil for an alternative grease solution capable of improving bearing life.

Recommendation
ExxonMobil engineers recommended Mobil Polyrex™ EM grease, which is specialized for use in electric motor bearings and engineered to withstand degradation under high temperatures and speeds. The customer accepted the recommendation and decided to run a field trial of Mobil Polyrex™ EM grease, in parallel with a competitor grease. The company lubricated other motors ranging from 1kW to 5kW with Mobil Polyrex™ EM grease.

Benefit
Mobil Polyrex™ EM grease has helped this Ultratech Nathdwara cement ltd company enhance bearing life, improve overall productivity and reduce maintenance costs.

Impact
The bearings lubricated with the competitive grease lasted only 3 months. In the field trial before failing. The bearings lubricated with Mobil Polyrex™ EM grease performed successfully up to 6 months. The lower power motor did not indicate any issues and no repair was required. Mobil Polyrex™ EM grease has proved to be the most suitable solution in the years since the field trail.
 

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