Custom Made Food Grade O Rings , Heat Proof Neoprene O Rings For Automobile
Food Grade Custom Silicone O Ring, Factory NBR/SILICONE/FKM/EPDM/HNBR Rubber O Ring, custom size o ring
what is o ring?
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.
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. They can seal tens of megapascals (thousands of psi) of pressure.
Over 2000 different size o ring in our stock, we can design and manufacture complete sets of rubber parts based on customer's requirements, any specification is welcome according to your requirements.
Product show
Physical and mechanical properties of the rubber material of O ring
| NBR | NBR | NBR | NBR | ACM | FKM | FKM | MVQ | ||||
| Normal condition | Hardness (shoreA) | 60±5 | 70±5 | 80±5 |
84~ 93 |
70±5 | 70±5 | 84~ 93 | 70±5 | ||
| Tensile strength(Min)MPa |
9 | 11 | 11 | 10 | 6 | 10 | 11 | 3.5 | |||
| Elongation(Min) | 300 | 220 | 150 | 100 | 80 | 150 | 100 | 60 | |||
| Hot air ageing | Condition(℃×h) | 125×24 | 125×24 | 125×24 | 125×24 | 150×24 | 200×24 | 200×24 | 230×24 | ||
| Hardness change(max) |
+10 | +10 | +10 | +10 | +10 | 0～+10 | 0～+10 | +10 | |||
| Change of tensile strength(max)% |
-15 | -15 | -20 | -20 | -40 | -20 | -20 | -5 | |||
| Change of elongation(max)% |
-40 | -35 | -35 | -40 | -50 | -30 | -30 | -25 | |||
|
Compression |
Condition(℃×h) Max% |
125×22 | 125×22 | 125×22 | 125×22 | 150×22 | 200×22 | 200×22 | 175×22 | ||
| 50 | 50 | 50 | 50 | 70 | 50 | 50 | 30 | ||||
| Fluid resista nt test |
ASTM Oil No.1 |
Condition(℃×h) | 125×24 | 125×24 | 125×24 | 125×24 | 150×70 | 150×24 | 150×24 | 175×70 | |
| Hardness change(max) |
5～+10 | 5～+10 | 5～+10 | 5～+10 | 5～+10 | 5～+5 | |||||
| Change of tensile strength(max)% |
-30 | -20 | |||||||||
| Change of elongation(max)% |
-40 | -20 | |||||||||
| Change of volume% | -12~+15 | -10~+15 | -10~+5 | -10~+5 | 5～+5 | -3~+5 | -3~+5 | 0~+10 | |||
| ASTM Oil No.3 |
Condition(℃×h) | 125×24 | 125×24 | 125×24 | 125×24 | 170×70 | 150×24 | 150×24 | |||
| Hardness change(max) |
-15 ~ 0 | -15 ~ 0 | -15 ~ 0 | -15 ~ 0 | -25 ~ 0 | ||||||
| Change of tensile strength(max)% |
-40 | ||||||||||
| Change of elongation(max)% |
-40 | ||||||||||
| Change of volume % | 0～+20 | 0～+20 | 0～+20 | 0～+20 | 0～+45 | -0～+15 | -0+15 | ||||
| Brittleness temperature ℃ | -25 | -25 | -25 | -25 | -20 | -25 | -15 | -70 | |||
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