Converting grease lubricated gear spindles to Mobil SHC™ synthetic oil lubrication helped improve equipment life span by 250%

Up to €1,000,000 in estimated

annual savings for spindle maintenance*

Mobil SHC™ 639 synthetic oil

Situation

A hot rolling mill uses gear spindles that transmit high torque between its gearboxes and rolls. Traditionally, gear spindles are grease lubricated. Under severe operation conditions, grease has a tendency to bleed more oil and remove grease from the contact zone. Insufficient lubrication increases tooth wear and keeps wear particles and contamination in the contact zone. Service life of the grease-lubricated spindles had been about 9 months.

Recommendation

An ExxonMobil engineer worked closely with the equipment builder, SMS Siemag, to convert the gear spindles to oil lubrication. Mobil SHC™ 639 synthetic circulating oil, with its high, 1,000 cSt viscosity, was selected due to its ability to withstand the high shock loads experienced even in normal operating conditions.

Result

By converting grease lubrication of the spindles to oil lubrication with Mobil SHC™ 639 circulating oil, the lifespan of the spindles increased by 250%. Customer has not experienced any failures in 32 months* and continues running the mill safely without unplanned spindle maintenance.

*This proof of performance is based on the experience of a single customer. Actual results can vary depending upon the type of equipment used and its maintenance, operating conditions and environment, and any prior lubricant used.

1636 kb PDF in English

11/1/2016

small things can make a difference

  • Mobil SHC 639

    Mobil SHC™ 600 Series lubricants are exceptional performance gear and bearing oils designed to provide outstanding service in terms of equipment protection, oil life and problem-free operation helping to enable increased customer productivity.

    Learn more
  • Metal manufacturing industry red beams

    Steel

    Mobil™ industrial lubricants are designed to increase equipment efficiency while also improving oil drain intervals and equipment life. We have the field expertise and proven products to help your plant solve its toughest challenges.

    Learn more