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                                    Plastic Plain Bearings Block And HDPE Insert Bearings
                                    • Plastic Plain Bearings Block And HDPE Insert BearingsPlastic Plain Bearings Block And HDPE Insert Bearings
                                    • Plastic Plain Bearings Block And HDPE Insert BearingsPlastic Plain Bearings Block And HDPE Insert Bearings
                                    • Plastic Plain Bearings Block And HDPE Insert BearingsPlastic Plain Bearings Block And HDPE Insert Bearings

                                    Plastic Plain Bearings Block And HDPE Insert Bearings

                                    Top Bearings is China manufacturers and suppliers who mainly produces Plastic Plain Bearings Block And HDPE Insert Bearings with many years of experience. Hope to build business relationship with you.

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                                    Product Description

                                    Top Bearings is China manufacturers and suppliers who mainly produces Plastic Plain Bearings Block And HDPE Insert Bearings with many years of experience. Hope to build business relationship with you.

                                    The plastic ball bearing units specially have the performance of corrosion and wear resistance, reduce vibration and anti-bump, are free from the maintenance and so forth. Such is the most ideal solution of many difficult problem which have puzzled the industry field for hundreds years. Aim at working in different environment, the ball bearing for units made with POM, HDPE, PP, UPE, PTFE or PEEK material, housing of the bearing units generally made with PBT material.

                                    Material:

                                    POM, HDPE, PP, UPE, PTFE, PEEK, PBT

                                    Basic Properties:

                                    Specially Have The Performance Of Corrosion And Wear Resistance

                                    Maintenance:

                                    Free

                                    Weight:

                                    Light

                                    Material Of Housing Of The Bearing Units:

                                    PBT Material

                                    Material Of The Ball Bearing For Units:

                                    POM, HDPE, PP, UPE, PTFE Or PEEK Material

                                    High Light:

                                    peek ball bearings，pillow block bearings


                                    Basic properties of staple engineer plastic

                                    Material HDPE PP POM PA66 PVDF PPS PTFE PEEK
                                    Long-time working temp. 90 100 110 100 150 230 260 280
                                    Density g/cm3 0.91 1.42 1.14 1.77 1.35 2.18 1.32
                                    Ball indentation hardness 50 80 170 170 80 190 30
                                    Tensile stress 25 30 70 80 50 75 25 95
                                    Sliding friction coefficient 0.29 0.3 0.34 0.35-0.42 0.3 0.08-0.1 0.3-0.38
                                    Melted temperature 130 165 175 260 172 280 327 343
                                    Short-time highest application temperature 90 140 150 170 150 260 260 300
                                    Coet of Inear expansion (10^-5/K) 13-15 17 10 8 13 5 12 5
                                    Dielectric constant at 1 Mhz(10^6HZ) 2.4 2.25 3.7 3.6-5 8 2.1 3.2-3.3
                                    Volume resisrivity (Ω·cm) >10^15 >10^24 >10^14 10^13 10^12 >10^13 10^14 10^13
                                    flammability UL94 + + - (+) (+) - + +
                                    Anti-weathering - - - - - - + -
                                    Note: + =resistant; (+) =partly resistant; - =non-resistant

                                     

                                    Comparison of bearing material technical data

                                    Technical data unit GCr15 9Cr18 Si3N4 AL203 ZrO2
                                    Density g/cm³ 7.8 7.9 3.2 3.95 6
                                    a Coefficient of expansion 10^-6/℃ 11 17 3.2 9.1 10.5
                                    E modulus of elasticity Gpa 208 200 320 380 210
                                    μ Poisson ratio 0.3 0.3 0.26 0.27 0.3
                                    HV Hardness 800 700 1700 1800 1300
                                    δ Flexural strength Mpa 2400 2600 900 220 1000
                                    δ Compressive Strength MPa 2000 1500 3500
                                    Kc Impact strength Nm/cm² 20 25 7 3.5 11
                                    λ Thermal conductivity W/mk 30-40 15 3.5 25 2.5
                                    Ω Specific resistivity mm²/m 1 0.75 10^18 10^8 10^5
                                    Specific heat J/KgK 450 450 800 880 400
                                    Application temperature ℃ 120 150 1000 1850 800
                                    Anti-corrossion No poor Good Good Good
                                    Cycle stress 10*10^6 10*10^6 50*10^6 30*10^6 50*10^6
                                    Destroy model peel peel peel fracture peel/fracture
                                    Anti-magnetism Yes Yes No No No
                                    Dimension stability bad poor Good Good Good
                                    Insulate properties No insulation No insulation Good Good Good

                                     

                                    Chemical properties of Engineer plastic

                                    Chemical Composition Material
                                    PI PEEK PTFE PVDF PA66 POM PP HDPE ABS
                                    Acrtate + + + (+) (+) + + (+) +
                                    Formic acid (10% water) + + + + - - + + +
                                    Ammonia (10% water) - + + + + (+) + + +
                                    Aether + + + + + + +
                                    Petrol + + + + + + (+) (+) (+)
                                    Bori acid (10% water) + + (+) + + + + +
                                    Aminoform + + + - - (+) - -
                                    Aeti aid 100% (+) - + - - + + -
                                    Aceti aid (10% water) + + + - (+) + + +
                                    HF + - - + + (+)
                                    Formaldehyde aqu (30% water) + + + + - + + +
                                    Glycerin + + + + + + +
                                    Iodine, Glycol + + (+) - (+) + + (+)
                                    K2Cr2O7 (10% water) + + + - + + +
                                    KMnO4 (1% water) + + + + - (+) + + (+)
                                    2-Hydronyprpionic 10% + + + - - + + -
                                    2-Hydronyprpionic 90% + + + + + (+) + + +
                                    Nad (10% water) + + + + + + + + +
                                    NaNO3 (10% water) + + + + + + + +
                                    NaOH (50% water) + + + + - + + +
                                    NaOH (5% water) + + + - + +
                                    Oxalic (10% water) + + + + (+) (+) + + +
                                    Tetracarp + + + (+) + - - (+)
                                    H3PO3 100% + + - + +
                                    H3PO4 (10% water) + + + - - + +
                                    NHO3 (2% water) + + + + - - + + +
                                    HCL (2% water) + + + (+) - - + + +
                                    H2SO4 98% - + - - + (+) -
                                    Soap liquid + + + + + +
                                    Alkaliliquid (10% water) + + + + + + +
                                    Toluene + + + + + + + (+) -
                                    Water, cold + + + + + + + + +
                                    Water, hot + + + (+) - + + +
                                    H2O2 (30% water) (+) + + - - + + +
                                    H2O2 (0.5% water) + + + - (+) + + +
                                    Asphalt + + (+) + (+) (+)
                                    Note: + =resistant; (+) =partly resistant; - =non-resistant  

                                     
                                    Plastic Plain Bearings Block And HDPE Insert Bearings Light Weight 0



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