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Standard Sealing Ring

Standard Sealing Ring

US Sealing Ring (material: thermoplastic polyurethane TPU, hardness 90±2 ShA)

conditions of use
Working pressure [MPa] 16 25 31,5
Continuous exposure temperature [°C] 80 50
W=6, 8, 9 0,3 0,25
Smax. W=12 [mm] 0,4 0,3
W=15 0,5 0,4
W=20, 24 0,6 0,5
US Ring Specifications

Hydraulic medium:

  • mineral oils
  • oil-water emulsions HFA and HFB classes (up to 50 °C)

Maximum operating speed [m/s]:

  • continuous 0.2
  • occasional 0.5

Ordering example

US Ring 50×40×8 Piston version (D × d × W)
US Ring 40×50×8 Rod/Sleeve version (d × D × W)

Notes

  1. Special versions of seals are available:
    • for continuous operation (in oil) at temperatures up to 100 °C,
    • in nominal sizes other than those specified in the standard range
  2. In case of high operational intensity, it is recommended to use anti-extrusion guide rings (PwP) or composite seals (USmd, USmt, UWt, UWd) in the sealing unit.
Technical Seals Dimensions Table
Type/Size DxdxW
Sleeve version		 Type/Size DxdxW
Piston version		 Outer diameter
D		 Inner diameter
d		 Groove width
L		 Assembly chamfer
a
10x18x618x10x618106.53.0
11x16x616x11x616116.53.0
11x20x620x11x620116.53.0
12x20x620x12x620126.53.0
26x40x940x26x9402610.05.0
30x40x840x30x840309.04.5
40x50x850x40x850409.04.5
50x60x860x50x860509.04.5
56x66x866x56x866569.05.0
63x73x873x63x873639.05.0
65x75x875x65x875659.05.5
70x80x880x70x880709.05.5
80x90x890x80x890809.06.0
90x100x8100x90x8100909.06.0
100x115x12115x100x1211510013.08.0
105x120x12120x105x1212010513.08.5
110x125x12125x110x1212511013.08.5
115x130x12130x115x1213011513.08.5
120x135x12135x120x1213512013.08.5
125x140x12140x125x1214012513.08.5
140x160x15160x140x1516014016.59.5
150x170x15170x150x1517015016.59.5
180x200x15200x180x1520018016.510.5
190x210x15210x190x1521019016.510.5
200x220x15220x200x1522020016.510.5
220x250x24250x220x2425022025.712.5
240x260x15260x240x1526024016.512.5