ReliabilityLINK

Predictive Maintenance

A Case Study: How to improve the performance of your Pump Motor with Bearings

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This case study is performed by mr.Selcuk Karabay, reliability engineer of STARWOOD Inc.

Finding:

The hot oil pump motor which was used for the press machine reached operational temperatures between 90-100 ° C. The vacuum pump motor stopped working continuously and reached temperatures between 100-110 ° C.

In addition the high temperature bearings failed after six months because of the complications connected to high operation temperature.

hotoilpumpcmlwbcnt A Case Study: How to improve the performance of your Pump Motor with Bearings

tested hot oil pump motor

vacuumpump A Case Study: How to improve the performance of your Pump Motor with Bearings

tested vacuum pump motor

Rout Cause:

After analyzing the situation our reliability staff concluded that the air circulation around the ‘hot spots’ was not sufficient enough to cool down the operational temperature of the pump motors.

hotoilpumptermcmlwbcnt A Case Study: How to improve the performance of your Pump Motor with Bearings

thermal camera screenshots of the tested hot oil pump motor

vacuumpumpterm A Case Study: How to improve the performance of your Pump Motor with Bearings

thermal camera screenshots of the tested vacuum pump motor

Solution:

High temperature bearings were installed on the pump motors in order to solve the problem. The adapted operational conditions were monitored for six months.

bearingheating A Case Study: How to improve the performance of your Pump Motor with Bearings

heating process of the bearing before mounting on the motors

The problems caused by the operation process/surrounding equipment temperatures were improved and the continuous break downs stopped. Nachi high temperature bearings were installed to all ‘hot oil’ and ‘vacuum’ pump motors on the production site.

About Nachi [Quest] Deep Groove Ball Bearings

NachiQuestDGBB A Case Study: How to improve the performance of your Pump Motor with Bearings

NachiQuestDGBB02wbcnt A Case Study: How to improve the performance of your Pump Motor with Bearings

Contact

Nachi Europe GmbH
Bischofstrasse 99
D-47809 Krefeld
Tel: +49 (0) 2151 650 46 0
Fax: +49 (0) 2151 650 46 90
Web: www.nachi.de

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