O-ring - CR

CR (Chloroprene Rubber) - Polychloroprene - is also known as Neoprene©*
O-rings are the most common sealing element, and because they are cheap and simple, the area for application of O-rings is very wide in hydraulic and pneumatic systems. Where working conditions and equipment are suitable, they can be used both in static and dynamic applications, but they are not recommended for rotary movements.
Because they take up less space and provide two-sided sealing compared with other sealing elements, O-rings make designing easier. Obtaining good results from O-ring applications depends on suitable measurements, choosing correct materials, and suitable surface quality on metal parts.

PROFILE

 
PRODUCT ADVANTAGES
• Can be used both for hydraulic and pneumatic systems
• Can be used both for static and dynamic applications
• Both for rod and piston applications
• Easy installation and removal
• Good mechanical properties
• Moderate resistance to mineral oils and greases
• Improved resistance to ozone, ageing and weathering compared to NBR
• Good resistance to water
• Good resistance to some refrigerants

APPLICATION
Used in almost in every industry but especially in non-moving machinery and in static sealing applications, e.g. as flange or cover seal.
CR O-rings are used in applications working with refrigerants and for outdoor applications.

INSTALLATION
O-rings are fitted into the groove by hand. It is very important that the assembly tools must be of soft material and have no sharp edges. Before installation all individual parts of the seal must be lubricated. Be sure not to use a lubricant that will cause deterioration of the seal.
Tolerances: DIN 3771 / ISO 3601

NOTES.
CR O-rings must not be used with non-mineral brake fluids.

* Neoprene® is the registered trade mark of DuPont Performance Elastomers.