Beijing Silk Road Enterprise Management Services Co.,LTD
                                                                                                           
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High Precision PVDF POM PA66 Plastic Plain Bearings

Price Negotiable
Price: Negotiation
MOQ: Negotiable
Delivery Time: 10-15 working days
Brand: OEM
Product Description

High Precision Wear Resistant 1.14 G/Cm³ PA66 Plastic Plain Bearings
 
Generally the inner and outer rings made with POM or PA, Cage made with PA66 and the balls made with glass, stainless or ceramic. Material PA have excellent mechanical strength and wearing resistance, PA66 High Precision Plastic Bearings is suitable for manufacturing precision plastic bearings. Plastic bearing made with POM is the most extensive sort of all the plastic bearings.
The Density of PA66 plastic bearings is 1.14 g/cm3, Sliding friction coefficient is 0.35-0.42, Short-time highest application temperature is 170℃.
PA66 High Precision Plastic Bearings could be used in some alkaline environment but not proper to some acid corrosion environment. With good self-lubrication performance and low friction coefficients, PA66 High Precision Plastic Bearings could be used in precise and high speed application. 

 

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

 
 

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  

 

 

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