PTFE LR

 

Rulon LR
聚四氟乙烯
Saint Gobain Performance Plastics

产品说明

Rulon® LR is a maroon colored bearing material best known for its versatile design properties.

It is compatible with most hardened steel substrates. Mild steel is acceptable; harder running surfaces are better.

Rulon® has a practically universal chemical inertness. Of the chemicals encountered in commercial practice, only molten sodium and fluorine, at elevated temperatures and pressures, show any signs of attack.

For continuous non-lubricated service, RULON® LR sleeve bearings are capable of operating up to 10,000 PV. Higher values are possible for intermittent service.

总体

材料状态 • 已商用：当前有效   
供货地区 • 北美洲   
性能特点 • High Hardness • 耐化学性良好  
 • 泵件 • 孤立绝缘体 • 轴承 
用途 • 电气部件 • 密封  
 • 电器用具 • 汽车领域的应用：  
外观 • 栗色   
形式 • 可定制外形   
加工方法 • 机器加工 • 挤出  

物理性能 额定值单位制 测试方法
比重 2.24g/cm³ ASTM D792
吸水率 (24 hr) 0.0% ASTM D570
机械性能 额定值单位制 测试方法
抗张强度 (屈服) 13.8MPa ASTM D638
伸长率 (断裂) 140% ASTM D638
摩擦系数 0.20 ASTM D1894
负载变形 (10 MPa) 3.00% ASTM D621
热性能 额定值单位制 测试方法
线形膨胀系数  ASTM D696
流动: 26 到 93°C 0.00011cm/cm/°C 
流动: 26 到 149°C 0.00011cm/cm/°C 
横向: 26 到 93°C 0.000063cm/cm/°C 
横向: 26 到 149°C 0.000063cm/cm/°C 
导热系数 0.33W/m/K ASTM C177
补充信息  
Temperature, Typical Range: -400° to 550°F  
Flammability, ASTM D635: non-flammable  
Maximum Pressure(P): 1000 psi  
Maximum Velocity with no load (V-SFM): 400 ft/min  
Maximum PV (PxV): 10000 psi x ft/min  
Shaft Hardness - Minimum: Rc35  
Shaft Finish recommended: 8 to 16 Ra  
Shaft Material: steel  
Chemical Resistance: Inert  
Coef. of Friction, ASTM D1894, static & dynamic: 0.15 to 0.25  

备注
1 一般属性：这些不能被视为规格。

 

 

 

 

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