UN Oil Seal

A pliable, non-metallic PU ring is ingeniously nestled within a precision-machined groove or seamlessly integrated into a composite of rings, forming a robust sealing assembly. Essential in converting fluid power to linear motion, it adeptly impedes or segregates fluid flow in reciprocating machinery.    

Advantage

Main specifications:- Available in a variety of sizes, colors and materials- Remains resilient at low temperaturesResistant to hydrocarbon fuels and petroleumLow compressive deformation rateExcellent wear resistance and tensile strength, good elasticity, easy to install- Ideal for hydraulic applications with high pressure, dust contamination and shock absorption.

Application

Automotive industry:
Engine system: crankshaft, camshaft, connecting rod, balance shaft, etc.
Transmission system: in the transmission, transfer box, drive axle and other components of the input and output shaft, gear box bearing seat and other positions.
Suspension system: in the shock absorber, steering rod, ball and other parts.
Brake system: shaft seals of brake booster, ABS pump and other components.

Construction Machinery and Heavy Equipment:
Hydraulic system: hydraulic cylinder piston rod, motor shaft, pump shaft and other parts, PU oil seal provides reliable sealing under high pressure and high speed conditions.
Transmission device: such as excavator, loader and other equipment drive shaft, reducer output shaft and so on.

Industrial Pumps and Valves:
Centrifugal pump, plunger pump, gear pump and other types of pump shaft seal, PU oil seal to ensure that the liquid in the sealing chamber does not leak, while blocking external impurities into the pump body.
Shaft seal components of globe valves, regulating valves, ball valves and other valves, PU oil seals are used to seal the gap between the valve stem and the valve body to prevent media escape or external material intrusion.

Power and Energy Equipment:
In the main shaft, yaw system, variable pitch system and other parts of wind turbine, PU oil seal is used to seal grease or hydraulic oil to ensure long-term stable operation of equipment.
Turbine, governor and other equipment shaft seal, PU oil seal to prevent water leakage and grease pollution.

General Manufacturing:
Stirrers, compressors, vacuum pumps and other shaft end seals in chemical equipment.
Food and pharmaceutical machinery cleaning machine, mixing machine, packaging machine and other shaft seals.
Crusher of mining machinery, conveyor roller and other parts.

Agricultural Machinery and Garden Equipment:
Tractors, harvesters and other agricultural machinery power output shaft, pto shaft, hydraulic system shaft seal.
The shaft seal of the drive shaft and hydraulic system of lawn mower, lawn mower and other garden equipment.

Household Appliances and Power Tools:

Motor shaft seals for washing machines, dishwashers and other household appliances.
Gear box shaft seal for electric tools such as drill, chainsaw, grinder, etc.    

Operating Conditions
Pressure: ≤ 400 bar
Temperature: -35°C...+100°C
Speed: ≤ 0.5 m/s
Fluids: Hydraulic fluids (mineral oil based)
Gap >e< defined according to operating conditions by using nomogram.

Materials
Polyurethane (harness 94 Shore A)

Installation
Closed housing (A)
Two-piece piston (B)