Polyurethane sealing ring UR rod seal

Description Of Hydraulic Cylinder Seals

Hydraulic cylinder seals are used to seal the opening between various components in the hydraulic cylinder. They are designed to retain hydraulic fluids, exclude solid or liquid contaminants, and maintain hydraulic pressure. These tasks require a variety of different seal designs and performance-enhancing features. Seal material must conform to irregularities in metal surfaces to block fluid passage. To adjust to clearance gap size changes, the seal must expand or compress rapidly to follow dimensional variations. Finally, to resist being extruded into gaps, the seal must have sufficient modulus and hardness to withstand shear stress produced by system pressure. Successful sealing involves containment of fluid within fluid power systems and components while excluding contaminants. The surfaces in contact with a seal determine what type to use. The surface can either be static or dynamic—in motion or without movement. Static seals are typically used when there is no relative motion between mating surfaces. Dynamic seals are the opposite. They are used when there is motion between surfaces. This can be either reciprocating or oscillating motions.

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Hydraulic Rod Seals-PU UR rod seal

UR is a sealing element used safely in rod applications and produced with high performance 93 Shore A PUmaterial . Supported by another sealing lip in the side from which dynamic pressure comes , this UR PU nutringis made in such a way that is operates well in every hydraulic applications .

Technical Data

Pressure: ≤ 400 bar

Temperature: -35 to +110℃

Speed: ≤0.5m/s

Media: Hydraulic oils (mineral oil-based)

Material

Material: PU

Hardness: 93+/2 Shore A

Color: Dark Green

Advantages

Insensibility against shock loads and pressure peaks.

High resistance against extrusion

Sufficient lubrication due to pressure medium between the sealing lips.

Suitable for hardest working conditions

Easy installation

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Standard Size of UR Rod Seal

Size(mm)	Size(mm)	Size(mm)	Size(mm)	Size(mm)
10×15×3.6	22×30×6	28×40×10	35×45×6	40×48×10*
11×17.8×6	22×30×7	30×38×5.7	35×45×7	40×50×6
12×20×5	22×30×8	30×38×6	35×45×7.3	40×50×7
12×20×5.8	22×32×7.3	30×38×6.3	35×45×8	40×50×7.3
14×22×5	22.4×30×5	30×38×8	35×45×10	40×50×8
14×22×5.7	25×33×5	30×40×6	35×50×9	40×50×9
14×24×7.3	25×33×5.7	30×40×7.3	35×50×10	40×50×10
U32i 15×20×2.8	25×33×6	30×40×8	35.5×50.5×10	40×55×9
U32i 16×22×3.8	25×33×7	30×40×10	36×44×5.7	40×55×10
16×22×5	25×33×7.3	30×42×10	36×44×8	40×60×12
16×24×5.8	25×33×8	30×43×10	36×46×7.3	42×52×7.3
16×26×7.3	25×35×6	30×45×10	36×46×10	44.45×53.98×4.75
18×25×5	25×35×7.3	30×50×9	37×47×7.3	44.45×53.98×6.35
18×26×5	25×40×10	31×40×8	37×47×8	44.45×57.15×9.53
18×26.5×8	25.4×31.75×6.35	31.75×38.1×6.35	37×47×10	45×53×5.8
18×28×7.3	26×32×6.5	32×42×6	38×48×7.3	45×53×6
20×26×5	26×36×10	32×42×7.3	38×48×8	45×53×7
20×28×5	27.5×35.5×5	32×42×8	38×48×10	45×53×8
20×28×5.7	28×35.5×5	32×42×10	38×50×10	45×55×5.8
20×30×6	28×36×5	32×45×10	38.1×47.63×6.35	45×55×6
20×30×7.3	28×36×5.7	32×47×10	38.1×47.63×7.94	45×55×7
20×30×8	28×36×6	32×48×10	38.1×50.8×9.53	45×55×7.3
20×30×10	28×36×7	35×42×6	40×48×5.2	45×55×8
22×28×5.7	28×36×8	35×43×5.7	40×48×6	45×55×10
22×30×5	28×38×5.7	35×43×6	40×48×6.3	45×56×6
22×30×5.7	28×38×7.3	35×43×7	40×48×8	45×60×9

Size(mm)	Size(mm)	Size(mm)	Size(mm)	Size(mm)
45×60×10	52×62×10	56×75×12	63.5×76.2×9.53	75×85×12
45×60×11.4	52×62×12	56×76×12	65×75×6	75×88×10
45×65×9	53×63×6	57.15×69.85×9.53	65×75×7	75×90×9
45×65×12	53×63×7.3	58×68×7.3	65×75×11.8	75×90×10
46×56×7.3	53×64×6	60×68×8	65×78×10	75×90×11.4
48×63×10	55×63×10	60×70×6	65×80×9	75×95×12
50×57.5×10	55×65×6	60×70×7.3	65×80×11.8	75×95×14.5
50×58×7.3	55×65×7.3	60×70×9	65×85×12	77×87×7.3
50×58×8	55×65×10	60×70×10	67×77×6	77×87×12
50×58×10	55×65×11.8	60×70×11.4*	68×78×7.3	80×90×6
50×60×6	55×66×6	60×70×11.8	70×80×6	80×90×10
50×60×7	55×67×14	60×73×10	70×80×7	80×90×11.5*
50×60×7.3	55×68×10	60×75×8	70×80×10	80×90×11.8
50×60×8	55×70×9	60×75×9	70×80×11.8	80×92×9
50×60×10	55×70×10	60×75×10	B3 70×80×12	80×93×10
50×60×11	55×70×11.4	60×75×11.8	70×82×9	80×95×9
50×60×12	55×70×11.8	60×80×12	70×83×8	80×95×10
50×63×8	55×75×11.8	61×71×6	70×83×10	80×95×11.4
50×63×9	55×75×12	63×73×6	70×84×14	80×95×11.8
50×63×10	56×64×8	63×73×8	70×85×9	80×100×12
50×65×9	56×66×6	63×73×10	70×85×10	80×100×14.5
50×65×10	56×66×7.3	63×73×11.8	70×85×11.4	80×100×15
50×65×11.5	56×66×10	63×73×12	70×90×12	85×95×6
50×70×12	56×68.7×9.53	63×78×10	70×90×14	85×95×9
50.8×63.5×6.35	56×71×10	63×78×11.4	75×85×6	85×95×12
50.8×63.5×9.53	56×71×11.4	63×83×12	75×85×8	85×100×9

Size(mm)	Size(mm)	Size(mm)	Size(mm)	Size(mm)
85×100×10	100×115×9	110×130×14.5	130×145×12	160×170×11
85×100×11.8	100×115×10	112×125×9	130×150×12	160×175×9
85×105×12	100×115×11.4	115×125×10	130×150×14.5	160×175×12
88.9×101.6×9.53	100×115×12	115×130×9	135×145×10	160×180×14.5
90×100×8	100×120×11.4	115×130×10	135×150×9	162×172×14
90×100×10	100×120×12	115×135×12	135×155×12	170×190×14.5
90×102×8.7	100×120×14.5	115×135×16	140×155×9	170×190×16
90×105×9	100×125×15	120×130×14	140×160×12	180×192×10
90×105×10	105×120×9	120×135×9	140×160×14.5	180×200×14.5
90×105×11.4	105×120×10	120×135×14.5	141×151×14	180×205×18
90×105×11.8	105×120×14.5	120×140×12	145×160×14.5	185×195×11
90×110×12	105×125×12	120×140×14.5	145×165×15	200×220×12
90×110×15	105×125×14.5	125×140×9	150×165×9	200×220×14.5
92×107×11.5	110×118×11.5	125×145×12	150×170×11	210×235×18
95×110×9	110×125×9	125×145×14.5	150×170×14.5	210×230×14.5
95×110×10	110×125×10	130×145×9	155×167×10	240×260×14.5
95×110×12	110×125×11.4
95×115×12	110×125×14.5
98×112×9	110×130×12
100×110×14