Plastic Plain Bearings Block And HDPE Insert Bearings Light Weight

Business Type
Manufacturer
Country
China

Product Detail

Plastic Bearing Block and Plastic Insert Bearings 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. - - - - 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 | - - - - - - - - Comparison of bearing material technical data | Technical data | unit | GCr15 | 9Cr18 | Si3N4 | AL203 | ZrO2 | Density | g/cm | 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 | Poisson ratio | | 0.3 | 0.3 | 0.26 | 0.27 | 0.3 | HV Hardness | | 800 | 700 | 1700 | 1800 | 1300 | Flexural strength | Mpa | 2400 | 2600 | 900 | 220 | 1000 | Compressive Strength | MPa | | | 2000 | 1500 | 3500 | Kc Impact strength | Nm/cm | 20 | 25 | 7 | 3.5 | 11 | Thermal conductivity | W/mk | 30-40 | 15 | 3.5 | 25 | 2.5 | Specific resistivity | mm/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) | | + | + | + | - | -

About our Company

Business Type
Manufacturer
Products
Pillow Block Bearings, Software Applications

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ZHEJIANG TOP BEARINGS CO., LTD.

Mr. TongLe TongLe

China

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