Operating Conditions 

Pressure Max. 35 MPa
Speed Up to 0.5 m/s
Temperature Use in mineral oils: -20 °C to +110 °C
Media Mineral oil-based hydraulic fluids.

Important Note : The above data are maximum values and cannot be used at the same time, e.g. the maximum operating speed depends on material type, pressure, temperature and gap value. Temperature range also depends on media.



Materials 

Standard US1RD
Temperature -20 °C to +110 °C
Color Red



Seal Clearance 

Guide values for the radial clearance between rod and gland in relation to the operating pressure and rod diameter can be found in the table below.

Operating Max. Pressure Radial Clearance Smax
MPa dN < 60 mm dN > 60 mm
5 0.40 0.50
10 0.30 0.40
20 0.20 0.30
30 0.15 0.20
40 0.10 0.15

The values for Smax given in this table apply to all types for the low-pressure side of the U-Cup. They are designed for an operating temperature of 60 °C.

Materials for RU2 

Installation Dimensions - Standard Recommendations 

Ordering Guide

U-Cup Type RU2

Series RU2
Rod Diameter dN = 45.0 mm
Groove Diameter D1 = 55.0 mm
Groove Width L = 6.3 mm
TMK Part No. RU20450063

RU2 0450 063 US1RD

  1        2      3         4

1 TMK Series No.
2 Rod Diameter x 10
3 Groove Width x 10
4 Material Code

Installation Dimensions / TMK Part No.