POM / PA66 High Precision Plastic Plain Bearings With Glass Stainless Balls

Business Type
Manufacturer
Country
China

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PA66 HighPrecision Plastic 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 (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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ZHEJIANG TOP BEARINGS CO., LTD.

Mr. TongLe TongLe

China

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