CR O-rings 80 Shore A

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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Black	37.3 mm x 3 mm	CR-Neoprene	80 Shore A	Nee
O-ring Black	81 mm x 2 mm	CR-Neoprene	80 Shore A	Nee
O-ring Black	45 mm x 3 mm	CR-Neoprene	80 Shore A	Nee
O-ring Black	29 mm x 5 mm	CR-Neoprene	80 Shore A	Nee
O-ring Black	29.83 mm x 2.62 mm	CR-Neoprene	80 Shore A	Nee
O-ring Black	128 mm x 2 mm	CR-Neoprene	80 Shore A	Nee
O-ring Black	145 mm x 5 mm	CR-Neoprene	80 Shore A	Nee
O-ring Black	266 mm x 8.2 mm	CR-Neoprene	80 Shore A	Nee
O-ring Black	190 mm x 5.4 mm	CR-Neoprene	80 Shore A	Nee
O-ring Black	763 mm x 12.7 mm	CR-Neoprene	80 Shore A	Nee
O-ring Black	32.100 mm x 2.62 mm	CR-Neoprene	80 Shore A	Nee
O-ring Black	9.25 mm x 1.78 mm	CR-Neoprene	80 Shore A	Nee
O-ring Black	28.4 mm x 1.78 mm	CR-Neoprene	80 Shore A	Nee
O-ring Black	150 mm x 3 mm	CR-Neoprene	80 Shore A	Nee
O-ring Black	735.33 mm x 6.99 mm	CR-Neoprene	80 Shore A	Nee
O-ring Black	7.65 mm x 1.78 mm	CR-Neoprene	80 Shore A	Nee
O-ring Black	12 mm x 4 mm	CR-Neoprene	80 Shore A	Nee

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What is CR (Chloroprene rubber):

O-rings from Neoprene rubbers are homopolymers of chloroprene (chlorobutadiene) and functional to the earliest synthetic rubbers used to produce seals. CR O-rings are not useful in environments with aromatic and oxygen-rich solvents. Different compositions can be used to form Neoprene for operating temperatures from -40 °C to + 110 °C.

The advantage of CR O-rings:

Good resistance to bending cracks
Good aging properties in ozone and weather environments
Operating temperatures from -40 °C to + 110 °C

The disadvantage of CR O-rings:

Poor resistance to petroleum-based lubricants
Poor resistance to oxygen