Frameless oil seal is generally used for large size, installation difficulties, poor working conditions, no skeleton oil seal assembly with gland, or will rotate with the shaft seal failure. Skeleton oil seals have been standardized and used generally below the shaft diameter of 300.
Frameless seal have two type: sealed with cloth and pure rubber.
Commonly used rubber materials: nitrile rubber, fluorine rubber, silicone rubber, rubber and so on.
Usage: used for reciprocating cylinder, cylinder rod or stem exposed from the role of dust.
Working temperature: -30 ~ 120 ºC
Reciprocating speed: 2m / s
Working medium: water, ethylene glycol hydraulic oil, oil - water emulsion hydraulic oil, air, general-purpose hydraulic oil-based oil.
Product hardness: 80 ± 5 ° A
Working pressure: ≤ 0.03Mpa
When selecting the material of the oil seal, the compatibility of the material with respect to the working medium, the adaptability to the operating temperature range and the ability of the lip to follow the high-speed rotation of the rotating shaft must be taken into account. General oil seal work when the temperature of its lip is higher than the working medium temperature of 20 ~ 50 ºC, in the choice of oil seal material should be noted. The working range of the oil seal is related to the material used for the oil seal: -40 to 120 ° C for NBR, 30 to 180 ° C for ACM, 25 to 300 ° C for fluororubber (FPM)
size: hundreds
custom-made is welcome.
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