CR O-rings 90 Shore A

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	Dimensions	Material	Hardness (Shore A)	Certification

O-ring Black	13 mm x 2 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	25 mm x 3 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	320 mm x 5 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	468.77 mm x 6.99 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	52 mm x 3.5 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	185 mm x 3.5 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	249 mm x 5 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	377 mm x 6 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	50 mm x 3 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	6 mm x 1 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	75 mm x 8 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	79.6 mm x 3 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	129.78 mm x 3.53 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	164.48 mm x 6.99 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	245 mm x 5 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	69.46 mm x 3.53 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	83 mm x 3.5 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	13.5 mm x 2.5 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	34 mm x 3.5 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	45.70 mm x 2.62 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	69.3 mm x 5.7 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	8.5 mm x 1.5 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	18 mm x 3 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	48 mm x 6 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	623 mm x 7 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	142 mm x 4 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	240.68 mm x 6.99 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	29 mm x 3 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	291.48 mm x 5.33 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	16 mm x 1 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	72 mm x 4 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	10.47 mm x 5.33 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	54 mm x 2 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	90 mm x 3 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	174.3 mm x 5.7 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	3.1 mm x 1.6 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	55.36 mm x 2.62 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	158 mm x 4 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	177.18 mm x 6.99 mm	CR-Neoprene	90 Shore A	Nee
O-ring Black	68.27 mm x 3.53 mm	CR-Neoprene	90 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