Green Color NOK PU Orings ORI 89.6*101*5.7 for Hitachi Komatsu Cateroillar Excavator Oil Seal Kit
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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
Use: oil resistance situation
FKM/FPM O RING
Temperature: -20 to 220C
Hardness: ShoreA 50-90
Use: oil resistance, wear resistance, acid and alkali resistant, high temperature resistance situation
SILICONE/VMQ O RING
Temperature: Normal: -60 to 225C
Hardness: ShoreA 25-90
Use: Food situation
EPDM O RING
Temperature: Normal: -50 to 150C
Hardness: ShoreA 40-90
PU O RING
Temperature: AU: -40 to 100C (oil resistance)
EU: -80 to 90C (water resistance)
Hardness: ShoreA 60-98
Ozone & UV
Steam & Hot Water
Machine Tool Equipment
Orings are used to install on various mechanical equipments. It can seal under static or moving conditions under the specified temperature and pressure and different liquids and gases.
How to keep in stock for the o-ring?
1. Do not open the original packing to keep them clean to avoid any damage.
2. Should be stored away from direct sunlight and keep in low humidity environment. Sunlight and moisture make rubber get ageing asap, and get the size of rubber or plastic material changing.
3. Once it was opened, make sure there are no any other objects inside when repacked, and please kindly use the original packing bag.
Fourth, should be stored away from electric machinery which could be produced ozone.
4. Do not string up the o-rings and hang on the nail or metal wire, or the shape of o-ring get changing and damage the end of o-ring lip.
When the color of o-ring is changing or there is white powder(Frosting appears), there is no effect on the o-rings.