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Basic & metadata

轨道交通轴箱组合密封
MetricImperial

High-strength rail axle-box HNBR H85-RAIL Collected

Material reference summary · Organized from personal and public references
Material categoryRubber
Base polymerHNBR Hydrogenated nitrile rubber
Information sourceMseal 动态密封材料中心

Physical & operating parameters

Minimum service temperature-35 ℃
Maximum service temperature160 ℃
Hardness (Shore A)85 Shore A
Density1.28 g/cm³

Category-specific performance

Characteristics
High-strength wear-resistant HNBR 85 for rail axle boxes and high-load dynamic oil seals.
Mechanical properties
22.0 MPa tensile strength and 230% elongation with outstanding tear and fatigue resistance.
Thermal properties
Recommended continuous range -35 to 150°C, short excursions to 160°C.
Friction & wear
High wear resistance and low compression set for continuous rotation in contaminated environments.

Category-specific fields

PropertyValueUnitTest standard
Tensile strength22MPa
Elongation at break230%

Processing & supply-chain information

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