Water lubrication bearings
Water lubrication bearings

Water lubrication bearings

Water lubrication bearings

Water lubrication bearings Details

BHS journal bearing producing water lubrication bearing,covered water lubrication thrust bearing and guide bearing.

Material including PTFE(Poly tetra fluoroethylene),PEEK, UHMWPE,Nylon,which be used for  boiler circulating pumps,water turbine, ship stern shaft,etc.

PTFE  property

     Density

   (g/cm3

   Max Load

       MPa

      Water   absorption 

  Max linear        speed

         m/s

  Elongation     break(%

Dry friction

coefficient

      2.12

       ≥5

    1.05%

        ≥20

        112

     ≤0.15

UHMWPE property

  Density

g/cm3

Life time

(year)

Water   absorption 

Max linear        speed

       m/s

Modulus of elasticity

N/mm2

Dry friction

coefficient

      1.58

      ≥10

     ≤1.6%

       15

      1500

   ≤   0.15

 

PTFE and PEEK material property comparison

Material name

              PEEK

            PTFE

Friction coefficient(5Mpa,0.15m/s)

               0.112

            0.107

Abrasion loss

(E-5mm3/N.m,15Mpa,0.1m/s)

               0.13

             5.6

Modulus of elasticity in comperssion (MPa)

              2476

            1300

Limitation PV value(Mpa.m/s)

              ≤89.5

           ≤44.8

Long period working temperature(°C)

              ≤150

           ≤125

Limitation working temperature(°C)

              ≤250

           ≤175

Aging life time(Year)

                20

            20

 

 

 

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