MR-Bearing for Pumps

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MR-Bearing for Pumps

MR-Bearing for Pumps

Although they do not allow start-up without injecting water, these submerged bearings are the most stable if there is water prior to start-up.
These bearings can be provided at a lower cost compared to FF-Bearing.
They have produced steady results, as they have been used for long periods in pumps with high specifications at thermal and nuclear power plants.

Main Usages of MR-Bearing for Pumps

Circulating water pumps for nuclear and thermal power plants, machine cooling seawater pumps, screen wash pumps, desalination plants, flood control pumps, water and sewage intake and drainage pumps, agricultural water pumps, etc.

Plants by Purpose

Water and sewage, Thermal power generation, IWPP (Saline water conversion), Geothermal power generation, Gas storage system, Nuclear power plant, Petrochemical complex, Agricultural water / River water intake, Hydropower

Characteristics of MR-Bearing for Pumps

  1. No Damage to the Shaft and Sleeve

    Even if sand or pebbles fall between the shaft and the rubber bearings, the lubricating water expels the debris along the ridge as the shaft rotates. At out company, we implement designs with rubber that take advantage of these properties.

  2. Low Power Loss

    In general, wet rubber and metals have properties of sliding very well. At our company, we pay attention to these characteristics and implement designs with rubber that have a low coefficient of friction.

  3. Low Wear

    Wear resistance is better compared to lignum vitae. There is an example of rubber bearings being used for over 10 years in a situation where lignum vitae had to be replaced every several months.

  4. Swelling resistance

    We use a rubber with excellent swelling resistance that does not cause hydrolysis.

Introduction Example

TSURUMI MANUFACTURING CO., LTD. / ANDRITZ / ISHIGAKI COMPANY, LTD. / Kubota Corporation / SHINKO IND.LTD. / Shin Nippon Machinery Co., Ltd. / SHINRYO KOUGYO Co., Ltd. / TAIKO KIKAI INDUSTRIES CO., LTD. / TORISHIMA PUMP MFG.CO.,LTD. / MITSUI MIIKE MACHINERY CO.,LTD. / Mitsubishi Heavy Industries, Ltd. Takasago Manufacturing / DMW Corporation / EBARA CORPORATION / Honda Pumps Co., Ltd. / Hitachi Industrial Products Co., Ltd. / JPEC Co., Ltd. / Maruhachi Pump Manufacturing Co., Ltd. / Electric Power Development Co.,Ltd., etc.