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[China]
Trade Verify
Address: East side of the intersection of Xiangbai Road and Gaoke Sanfu Road, Weibin Street, Qindu District, Xianyang City, Shannxi Province
Contact name:Vivan
Shaanxi Kelong New Materials Technology Co., Ltd. |
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Verified Suppliers
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1,product description
UN USI UPI Type Polyurethane Oil Seal
Hydraulic Sealing Ring U Type Y Type Cylinder Hydraulic Rod Shaft
Piston Seal Rubb
UN Oil Sealslt is a high performance singleacting U-shaped
sealProvides the driest seal in lightand medium load applicationsIt
can be used in heavy-dutyapplications when used with astop ringEasy
to install and excellent lowtemperature resistanceApplication:
piston, piston rod
Material: PU
2,Material analysis
NBR
Temperature range: -30°C to 125°C Hardness: 40-90A Color: Customizable Application: Excellent oil resistance Advantages: Excellent
oil resistance and stability, widely used, affordable price
FKM
Temperature range: 20°C to 250°C Hardness: 50-90A Color: Black/brown/green, other colors can be customized Application: Excellent
oil and chemical resistance Advantages: Wear resistance, acid and alkali resistance, high temperature resistance.
SILICONE
Temperature range: 60°C to 225°C Hardness: 25-90A Color: Red/transparent (clear)/white, etc. Application: Food grade Advantages:
Good heat resistance, cold resistance, lubricating oil resistance, and water resistance.
EPDM
Temperature range: 50°C to 150°C Hardness: 40-90A Color: Customizable Advantages: Excellent ozone resistance, heat resistance,
steam resistance, cold resistance, and LLC resistance.
NR
Temperature range: -44°C to 120°C Hardness: 60-90A Color: Customizable Advantages: Excellent mechanical strength and fatigue resistance.
HNBR
Temperature range: -30°C to 160°C Hardness: 50-90A Color: Black, other colors can be customized Advantages: Excellent ozone
resistance, heat resistance, mechanical strength, and electrical resistance compared to butadiene rubber.
| Material Types and General Properties | |||||
| <Table 1>Material types and general properties | |||||
| Item Type | Temp.R ange("C) | Property | |||
| High Temp.R | Low Temp.R | ||||
| ACM | 150 | -10 | It is used in diaphragm,hose for automotive application.Good
resistance to heat,ozone and oil.Generally attacked by water,alcohol,glycol and aromatic hydrocarbons.The molecular structure contains ethyl acrylate(EA),butyl acrylate (BA),and ethyl acrylate(MEA).High BA content get better low temperature resistance,and high MEA content get more oil resistance. | ||
| NR | 70 | -40 | Excellent compression set,high tensile
strength,resilience,abrasion,tear resistance,good friction characteristics,excellent bonding capabilities to metal substrate,and good vibration dampening characteristics | ||
| VMQ | 225 | 55 | The most widely temperature ranges for application.Good weather and
ozone resistance,but poor mechanical property and chemical resistance. | ||
| PTFE | 250 | -150 | Due to the low friction coefficient,it is used in oil seal
lip.However,it is poor elastic property | ||
| TPU | 100 | -40 | Polyurethane is one of the groups of elastic thermoplastic
materials.PU has been used in seal technology for many years because of their physica characteristics.It is an organic material of high molecular weight whose chemical composition is characterized by a large number of urethane groups.In addition it is characterized by extremely good mechanical properties such as high tensile strength,abrasive resistance,tear strength,and extrusion strength.However t is not resistant to polar solvents,chlorinated hydrocarbons,aromatics,brake fluids,acids,and alkalis | ||
| FKM | Excellent chemical resistance except ester and ketone | ||||
| 200 | -25 | Dipolymer | Copolymer of vinylidiene fluoride and hexafluoro propylene,and fluorine content is 66%. | ||
| -20 | Tripolymer | Copolymer of vinylidiene fluonide,hexafluoro propylene and
tetrafluro ethylene.Fluorine content is 68%.Tripolymer has better fluid resistance than dipolymer | |||
| XNBR | 100 | -40 | Modification of traditional NBR with the insertion of carboxyl
groups It has better tensile strength,modulus,abrasion than NBR | ||
