Seal silicone rubber oring
O-rings are one of the most common seals used in machine design because they are inexpensive, easy to make, reliable, and have simple mounting requirements.
The O-ring may be used in static applications or in dynamic applications where there is relative motion between the parts and the O-ring. Dynamic examples include rotating pump shafts and hydraulic cylinder pistons.
NBR O RING
Temperature: Normal: -40 to 100C
Low temperature: -55 to 100C
High temperature: -30 to 100C (Air)
and -30 to 100C (oil)
Hardness: ShoreA 40-90
Color: black, other color can customize
Use: oil resistance situation