Pumps & Vacuum Equipment

Water Lubricated Rubber Bearings Wear Resistance For Ship / Industry Fields?

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Introduction

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SF series water lubricated bearings are made up of SF series polymer graphite bearing material, the material has self-lubrication, low friction, high pressure and high wear resistance, can be used in warships and merchant ships tail bearings, hydraulic turbine, pump (heat) field and construction machinery, its performance is superior to similar products in the world, it has been obtained China CCS and Lloyd& acute;s register LR authentication certificate.

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Features

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1. self-lubrication;

2. low friction;

3. high pressure;

4. high wear resistance.

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Working Princple

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When working, ?a water lubricated bearing and a shaft compose?a pair of friction pairs. When the shaft is running, the relative motion exist between the shaft and the bearing. Good water lubricated bearings are built on the basis of good self - lubricating materials, good wear resistance, and the structure design of a water - lubricated film. As the shaft reaches a certain speed, the water film is formed between the shaft and bearing, water lubrication was set up, the contact area between the shaft and the bearing becomes small, effective will hold up, the friction coefficient decreases sharply, so as to achieve the effect of water lubrication.

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Technical Data

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Name | Unit | Numerical value |
Density | Kg/m3 | 1480 |
Compressive strength | MPa | 277 |
Compressive modulus | MPa | 8080 |
Bending strength | MPa | 120 |
Tensile strength | MPa | 67 |
Impact strength | KJ/M2 | 53.4 |
Brinell hardness | HBS | 26.4~32 |
Swelling coefficient | ‰ | 2.7 |
Working pressure | MPa | 2~27 |
MAX PV Value | MPa?m/s | 180 |
Saturated water absorption | % | 0.96 |
Maximum working temperature | ℃ | 160 |
Dry friction coefficient | ? | 0.08~0.11 |
Wet friction coefficient | ? | 0.05~0.10 |
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Application

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Since the advent of SF materials, it has been used on nearly 150 various types of ships (such as& quot; Hu Zhou& quot;,& quot; Xu Zhou& quot;, & quot;ORIENTAL SPIRIT& quot;, & quot;Blitz& quot;, etc) and after more than 60 military representatives, experts and professors of appraisal, they agreed that & quot;the material has characteristic of self lubrication, low friction, and abrasion resistance, performance is better than similar domestic and foreign materials, it can satisfy the needs of our ship water lubricated stern tube bearing high pressure, high speed and harsh working conditions, it is a stable, reliable, high quality materials of water lubricated bearings& quot;. The SF Series bearing material has been approved by China Classification Society (CCS) and Lloyd& acute;s register(LR).

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