10x sigillatura olio scheletro NBR cilindro idraulico doppia guarnizione albero labbro ID 8~27 mm

10pcs Skeleton Oil Sealing NBR Hydraulic Cylinder Double Lip Shaft Seal ID 8mm~27mm     

Model	Type - UN/UHS/UPH/USH/U/Y/V			Type - EU(DNC/SC/SE)	TC-Skeleton (FB/TG4)		Type - DHS	Type - YXD/U/ODU	Type - YXJ	Type - J
Introduction	U-type Y seal in the case of low pressure, only by the lip of the interference deformation to produce a seal, because the contact area is small, the friction is relatively low, with the rise in pressure, the lip elastic deformation increases, tensile, compressive and bending stress increases, u ring radial pressure automatically becomes larger, and the length of contact with the sealing surface increases until the entire length of the u ring axial contact with the sealing surface, thus ensuring a good seal under high pressure. The U-type Y-seal is the most commonly used oil seal in hydraulic cylinders and is a typical lip seal, whether used for pistons or piston rods can obtain a good seal.			The EU type pneumatic piston rod dust seal has three functions - sealing, dustproof and fixing. The following advantages are available: High resistance to wear and high resilience due to the hybrid positioning/dust seal which does not require the use of additional ring clips. Simple assembly, good pressure resistance and a wider temperature range ensure that the piston rod seals/dustproof rings are dimensionally consistent.	The skeleton oil seal is a lip type seal for rotating shafts. The skeleton is like the steel reinforcement inside the concrete member, playing a strengthening role and enabling the oil seal to maintain its shape and tension. According to the type of skeleton, it can be divided into internal skeleton oil seal, external skeleton oil seal, internal and external exposed skeleton oil seal. The skeleton oil seal is made of high quality nitrile rubber and steel plate + spring, with stable quality and long service life.		The main function of the DH series dust ring is to prevent powder, dirt, sand and metal chips from entering the cylinder. With the special double lip design, it greatly prevents scratching, protects the guiding elements and extends the life of the seals. Easy to install, no special screws and brackets or metal inserts are required and they can be easily fitted into simple grooves. The polyurethane material guarantees excellent properties in dry friction, increased wear resistance, good resistance to ozone and radiation yo extend the service life.	YX series seal is the most commonly used seal in the cylinder, it is a typical lip seal in the case of low pressure, only by the lip of the interference deformation to produce a seal, because the contact surface is small, the friction is relatively low as the pressure rises, the lip elastic deformation increases, tensile, compression and bending stress increases, the seal radial compression force automatically becomes larger, and the length of contact with the sealing surface is increasing,] until the entire axial length of the seal and sealing surface contact, thus ensuring a good seal under high pressure.	The function of the YXJ type dust ring is to prevent the ingress of dust, dirt, sand and metal objects, to protect the guiding elements and seals by means of a special design to prevent dust and dirt and to extend the service life of the seals. The oversize diameter ensures that the dust ring fits snugly into the groove, thus preventing the ingress of particles of impurities and moisture.	Dust rings are reciprocating seals fitted to piston rods to prevent external dust from being mixed into the hydraulic cylinder. They are used on hydraulic and pneumatic piston rods to remove dust from the external surface of the piston cylinder and to prevent sand, water and contaminants from entering the sealed cylinder. At present, the actual use of most of the dust ring is made of rubber material, its work is characterised by dry friction, which requires rubber material with special. In recent years also began to gradually promote the use of other materials and like rubber materials and new dust seals, such as PTFE and o-ring combination of this combination of seal sealing effect is good. Long service life, the application is becoming more and more widespread.
Material	Polyurethane (PU)	Nitrile Rubber (NBR)	Fluoroelastomer (FKM/FPM)	Polyurethane (PU)	Nitrile Rubber (NBR)	Fluoroelastomer (FKM/FPM)	Polyurethane (PU)	Polyurethane (PU)	Polyurethane (PU)	Nitrile Rubber (NBR)
Hardness (Shore)	90°	70°	80°	90°	70°	80°	90°	90°	90°	70°
Working Pressure	≤40MPa			≤40MPa	≤ 0.3bar	≤ 0.5bar	≤32MPa	≤32MPa	≤32MPa	≤30MPa
Temperature	-20℃ ~ +100℃		-20℃ ~+280℃	--20℃ ~ +100℃	-20+100℃	-20℃  ~ +280℃	-20℃ ~ +100℃	-20℃ ~ +100℃	-20℃ ~ +100℃	-20℃ ~ +100℃
Reciprocating speed	≤0.5m/s			≤0.5m/s	≤15m/s		≤0.5m/s	≤0.5m/s	≤0.5m/s	≤0.5m/s
Uses	For reciprocating cylinders, piston and piston rod universal (dual use for shaft and bore)			Bi-directional dust seals for cylinder piston rods	Widely used in machine tool spindles, automobile, motorbike crankshafts, camshafts, differentials, shock absorbers, engines, axles, front and rear wheels, etc. (rotary for shafts Oil, dust and water resistant seals )		Widely used in forging hydraulic presses, rubber vulcanizing presses, and various mechanical hydraulic cylinders and cylinders.   (For reciprocating cylinders, piston and piston rod universal (Shaft hole dual-use dust ring )	Widely used in general hydraulic cylinders, general equipment hydraulic cylinders, hydraulic cylinders for construction machinery, forging hydraulic presses, rubber vulcanizing presses, etc.   (for sealing of pistons (bores) (shafts) in reciprocating hydraulic cylinders)	Widely used in various hydraulic cylinder piston rod, axial rod, plunger, bushings and other dustproof role.   (for reciprocating cylinders, pistons and piston rods in general (dual purpose dustproof ring for shaft holes)	Seals used for dustproofing the exposed piston rod or valve stem of reciprocating cylinders. Or wherever dust protection is required.。
Features	Same height inner and outer lip opening			Oil and gas seals are suitable	Metal spring + rubber		High inner lip Mouth, low outer lip opening	High inner lip Mouth, low outer lip opening	High inner lip Mouth, low outer lip opening	High Steps，High inner lip opening, low outer lip opening
Colour	Green or Blue (Random )	Black	Brown	Green or Blue (Random )	Black	Brown	Green or Blue (Random )	Green or Blue (Random )	White or pale Yellow (Random )	Black
Advantages	1、Excellent resistance to damage 2. Impact pressure resistance 3、Small compression deformation, allowing large extrusion gaps   4、Improved sealing performance at zero pressure 5. Suitable for harsh working conditions 6、Good sealing performance and long service life 7、 Easy to install			1、 Excellent tensile strength, tear strength and abrasion resistance, oil and ozone resistant, also resistant to atomic radiation. 2、 Suitable for all kinds of harsh working and low temperature environments. 3、 Resistant to abrasion, corrosion and pressure	1、Preventing mud, dust, moisture, etc. from invading the bearings from outside; 2、Limit the leakage of lubricating oil from the bearing 3、 Requires proper elasticity, can be properly stuck to the shaft, play a sealing role; 4、 Heat resistant, wear resistant, good strength, medium resistant and long service life 5、 Oil resistance, wear resistance, high temperature resistance, corrosion resistance, acid and alkali resistance		1、 Good dustproof effect, strong sealing performance 2、 Resistant to oil, wear and pressure  3、 High resistance to extrusion  4、 Suitable for various vicious environments 5、 Easy to install	1. Excellent resistance to wear and tear 2. Insensitive to shock loads and pressure peaks 3. High resistance to extrusion 4. Low permanent compression deformation for severe working conditions 6. Easy to install	1、 Corrosion resistance, oil resistance, wear resistance 2、 Good dustproof effect, strong sealing performance 3、Applicable to various vicious environments   4、Easy to install 5、No need for tight tolerance 6. Long service life	1. Easy to install 2. Tight installation guaranteed by interference diameter 3. Protection of guide elements and delayed seal life 4. No metal inserts required 5. No need for tight tolerances 6. Long service life
Media	Hydraulic Oils, Emulsions, Water			Hydraulic Oil, Mineral Oil, Water, Air	Motor Oils, Transmission Oils, Hydraulic Oils, Greases, Mineral Oils, Synthetic Oils, Water		Petroleum-based Hydraulic Fluids, Emulsions, Water, Air	Hydraulic Fluids, Emulsions, Water	Hydraulic Fluids, Emulsions, Water	Petroleum-based Hydraulic Fluids, Emulsions, Bio-oils
Installation Notes	To Avoid Damage to the Sealing Lip, Measures Should Be Taken to Avoid Sharp Edges During Installation
Due to the large number of sizes available, it is not possible to list them all. If you cannot find the model or size you are looking for, please contact our customer service.

       

• Condition: Nuovo
• Inner Diameter: 8mm
• Outer Diameter: 18mm
• Height: 5mm
• QTY(Pcs): 10
• Brand: Unbranded
• Type: Oil Seal
• Material: Rubber
• Country/Region of Manufacture: China

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