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Home Hydraulic SealsHydraulic Piston SealsA102 piston nutrings 42 product(s)

A102 piston nutrings

A102 single acting piston nutrings by ALP are designed with shorter outer sealing lip and intended only to be used in piston application of standard cylinders. 

 

They are manufactured with 90 Shore NBR or 92 Shore PU compound as a standard. 

 

A102 piston nutrings offer easy assembly even into closed housings, very economic sealing solution, simple groove design and superior dynamic and static sealing effect to the system.

 

This type of seals can be used safely in construction machinery, moving platforms, forklifts, agricultural machinery, as well as any other standard cylinders. 

 

It is recommended to use A102 with at least one ALP guiding element, such as A251, A254, A255 or A256, depending on the working conditions. 

 

TECHNICAL DATA

Standard Materials

NBR

PU

Working Pressure

160 bar

400 bar

Working Temperature

-30 +105 °C

-30 +100 °C

Sliding Speed

0.5 m/s

0.5 m/s

Material

NBR 90

PU 92

Media

Mineral-base hydraulic oil

Surface Roughness

 

Ra

Rmax

Dynamic Surface

≤ 0.3 μm

≤ 3 μm

Groove Base

≤ 1.8 μm

≤ 10 μm

Groove Flanks

≤ 3.2 μm

≤ 16 μm

Permissible Gap (max) for NBR

Cross Section

Pressure (bar)

50

100

160

≤ 5

0.4

0.2

0.1

> 5

0.45

0.25

0.15

Permissible Gap (max) for PU

Cross Section

Pressure (bar)

150

250

400

≤ 5

0.3

0.2

0.15

> 5

0.35

0.25

0.2

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