ETP-EXPRESS R is the Stainless Steel version of ETP-EXPRESS. It is available as standard for shafts 15-80 mm, with imperial sizes also available. Runout ≤ 0,02 mm. Number of mountings 200 – 800 (size dependent). The extremely thin built-in dimensions allows for a compact design with low weight and inertia.

Construction

ETP-EXPRESS R is a hydraulic connection which consists of a double-walled hardened stainless steel sleeve filled with a pressure medium, and a flange. The flange part contains a stainless screw and piston with seals to maintain pressure.

Operation

When the pressure screw is tightened the double-walled sleeve expands uniformly against shaft and hub and creates a rigid joint. Dismantling is done by loosening the screw. ETP-EXPRESS R returns to its original dimensions and can easily be dismantled.

Where we win

  • ETP-EXPRESS R have the same benefits and features as ETP-EXPRESS.
  • All parts exposed to the environment are made of stainless steel.
  • Flat flange design allows for easy cleaning.
  • Pressure medium and screw lubricant are food approved.

 
ETP Express R - Tightening
When the pressure screw is tightened to the recommended tightening torque, the piston has reached the bottom of the bore. ETP-EXPRESS R has created a uniform surface pressure against the shaft and hub.

ETP Express R DiagramETP Express R Specification Icons
ETP Express R

Technical specification ETP-EXPRESS® R Notation ETP-EXPRESS R-XX

ETP-EXPRESS®
STAINLESS
DimensionsTransmittableScrews**
DIN 915, A4
Polar moment
of inertia
J
kgm2 • 10-3
Weight
kg
torqueaxial forceradial force
d
mm
D
mm
D1
mm
D2*
mm
L
mm
L1
mm
r
mm
T
Nm
FA
kN
FR
kN
Dim.R
mm
N
mm
Tt
Nm
R-1515184648,9253919,953465,10,5M1015,1550,040,16
R-5/8 "15,875194749,8264020,354535,50,5M1015,6550,050,17
R-3/4 "19,052350,553,0284221,955857,31M1017,4550,060,20
R-20202451,554,1304422,6561109,11M1018550,070,21
R-7/8”22,2252755,560,5324624,4571309,61M1019,3550,100,25
R-2525305862,9354925,858230151,5M1020,8550,120,27
R-1 "25,4315963,8354926,158190121,5M1021,2550,130,29
R-1 1/8”28,5753563,570,1395328,559290161,8M1023550,180,35
R-30303664,571,0405429,159380212M1023,6550,190,35
R-1 1/4 "31,753968,577,7425631,158430222,2M1024,8550,250,42
R-1 3/8 "34,925427385,1455931,960.5640302,5M1026,4550,310,47
R-3535427385,1455933,758640302,5M1026,4550,320,48
R-1 1/2 "38,14684,589,5527236,658890382,8M16318210,760,84
R-40404886,591,2557537,7591100453M16328210,840,88
R-1 3/4 "44,455493100,3587841,1611400513,5M1634,88211,191,08
R-45455493100,3587841,1591400513,5M1634,88211,171,05
R-1 15/16 "492,1256098,5105,1608043,7621900634,5M1637,58211,551,25
R-50506098,5105,1608043,7601900634,5M1637,58211,521,20
R-2 "50,861101,5111,8608045,2601900624,5M16388211,721,28
R-606073115,5132,7709053,3593300905,3M1643,38213,171,85
R-707085135,5153,985109625956001306,4M2050,810397,123,04
R-808097145,5162,69511965,96187001807,5M2056,3103910,353,75
T= Transmittable torque when axial force is 0.}   When the screw is tightened to Tt.Tt= Recommended tightening torque for the screws.
Further tightening does not increase the pressure.
* D2 is valid before mounting.
Dimensions subject to alterations without notice.
FA=Transmittable axial force when torque is 0.
FR=Max transmittable radial force at continuous operation.
Max allowed bending torque: 5% of transmittable torque T.

Tolerances

Shaft h8 (R-15 only h7).
Hub H7.

Type of torque

Transmittable torque, T, is for static load. If the load is alternating or pulsating torque, reduce the transmittable torque, T, with the following factors: (factor x T).
Alternating: 0,5 x T.
Pulsating: 0,6 x T.

Material

Type R: Euronorm 1.4057, stainless steel, X19CrNi17-2.
** Screw: coated for a low and even friction in the threads.

Mounting advice

Make sure the screw thread is well lubricated before each mounting. We recommend the use of Omega 58.

Special versions on request

ETP-EXPRESS R can be delivered in more corrosion resistant stainless steel and plated with Nickel.


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