Beijing Silk Road Enterprise Management Services Co.,LTD
Beijing Silk Road Enterprise Management Services Co.,LTD
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Plastic Plain Bearings
Thermoplastic plastic sliding bearing, plastic, Maintenance-free, Compound plastic produced by injection-molding.
Plastic Plain Bearings Metric Cylindrical Bushes & Flange Bearings made to order from china.
Bearings Black Lubricating Bushes h9 H7 tolerances.Such bearings are most widely applied as self-lubricating plastic bearings;
Characteristics
This series material is a thermal mould character plastic processed by crystal engineering plastic as basic material with proper intensifier and lubricant. The rigidity and high temperature engineer capability is greatly improved because of the use of intensifier, at the same time, the coefficient of thermal expansion, moulding shrinking rate and wriggle capability decreases, consequently, the size stability is improved, and series material range is enlarged and keeps the intrinsic anti-wear capability and anti-drug capability.
Typical Applications
· Office Machinery
· Electronic Products
· Textile Machinery
· Fitness Machinery
· Agricultural Machinery
· Packaging Machinery
· Automotive Industry
Solid lubricating and Maintenancefree Sliding Bearings
Plastic bearing has longe service vs Metal bearing lubricating oil is life easy to be failed
Engineers are dedicated on the performance improvement on the self- lubricating materials derives the result that EP Series Materials are with excellent self- lubricating features and wear resistance Features. High- strength fibers used in the engineering plastics fantastically improve the material load (Graphl). Special grease immersion in the plastic can decrease the friction coefficient of the material therefore to proiong the bearing sevice life. High-performance engineering plastics body material mainly service as wear- resistant vector. The reinfoced fiber improves the load and impact resistant capacity of the beaing. Special grease decreases the fiction coefficient for a better selflubricating performance.
Material property sheet
| Common Capability | Unit | EPT | EPG | EPH | EPX | EPJ | EPS |
| Density | g/cm³ | 1.46 | 1.46 | 1.65 |
| 1.49 | 1.24 |
| Color |
| Black gray | Dark grey | Grey | Black | Yellow | Beige |
| Max.water absorption,23℃/ 50% | [% weight] | 0.2 | 0.7 | 0.1 |
| 0.3 | 2.02 |
| Max.water absorption | [% weight] | ＜1.2 | ＜4 | ＜0.3 | ＜0.5 | ＜1.3 | ＜0.1 |
| Dynamic friction /steel | μ | 0.05-0.15 | 0.08-0.18 | 0.07-0.20 | 0.09-0.27 | 0.06-0.18 | 0.05-0.15 |
| Max.PV(dry) | MPa•m/s | 0.4 | 0.5 | 1.37 | 1.32 | 0.34 | 0.4 |
| Mechanical behavior | |||||||
| E-module | MPa | 2,300 | 7,800 | 12,500 | 8,100 | 2,400 | 830 |
| Tensile strength,20℃ | MPa | 80 | 200 | 175 | 170 | 73 | 18 |
| Compressive strength | MPa | 65 | 80 | 90 | 150 | 35 | 10 |
| Max.static pressure of the surface,20℃ | MPa | 35 | 80 | 150 | 90 | 20 | 10 |
| Shore D hardness |
| 70 | 112 | 87 | 85 | 74 | 73 |
| Physical and thermal properties | |||||||
| Continuous work tempreature | ℃ | +80 | +130 | +200 | +250 | +90 | +260 |
| short-time work tempreature | ℃ | +120 | +220 | +240 | +315 | +120 | +310 |
| Minimum operating temperature | ℃ | -40 | -40 | -40 | -100 | -50 | -200 |
| Thermal conductivity | W/m•K | 0.2 | 0.25 | 0.60 | 0.60 | 0.25 | 0.24 |
| Max.water absorption,23℃ | K-1•10-5 | 7 | 9 | 4 | 5 | 10 | 12 |
| Conductivity | |||||||
| Volume resisticity | Ωcm | ＞1012 | ＞1013 | ＜104 | ＜105 | ＞1013 | ＞1015 |
| Surface resisticity | Ω | ＞1015 | ＞1011 | ＜105 | ＜103 | ＞1012 | ＞1015 |
