ROTOSLIPPERS

ROTARY SEAL SYSTEM FOR FLUIDICS

Slow rotational movements, fast translational movements and combined roto-translational movements.
Maximum pressure 800 bar
Temperature:
from -20 to +120 °C with standard materials
from -60 to +150 °C with special materials

Speed:
Rotational movements: up to 2 rotations/sec with maximum peripherical speed of 0.6m/sec
Translative movements max. 5 m/sec.
FEATURES
  • Bidirectional sealing
  • Reliability
  • Long life
  • Minimum groove encumbrance
  • Very low rotation torque
  • No stick-slip.
  • No sticking
  • The most ample range of chemical and thermal resistance
  • Housing in closed groove 
 APPLICATIONS
  • Bi-directional seal for high and low pressures. 
  • Slow rotational movements, fast translational movements and combined roto-translational movements.
  • The specially designed profile and the high quality of the Parker-O-Ring ensure excellent life-duration even if subject to continual peak pressure.
  • Speed:

    • Rotational movememts up to 2 rotations/sec with
    maximum peripherical speed 0.6 m/sec . 
    Translative movements max. 5 m/sec.
  • For rotational use it is advisible to use type NCSR installed on cylinder whenever possible. 

HOUSING ON CYLINDER  (recommended)


  HD ROTOSLIPPER series NCSR installation on the cylinder
D rod
 E
L
R
S
  G*
max. extrusion clearence
Housing in closed groove from D=
standard groove
special groove
groove diameter
groove width
  
min
h7 
H9
H12
    
Bar 50
100
200
400
800
6-24
3-100
D+5
2,2
0,4
1,2
0,4
0,4
0,3
0,2
0,1
16
25-59
8-250
D+7,7
3,2
0,6
2,2
0,7
0,6
0,5
0,3
0,15
20
60-132
10-450
D+11,5
4,2
0,8
2,6
1
0,9
0,5
0,3
0,15
50
133-329
15-650
D+15,5
6,3
1
5,6
1,2
0,9
0,5
0,35
0,2
100
330-654
120-1100
D+21
8,1
1,5
8,2
1,6
1
0,6
0,35
0,2
150
656-1100
120-1100
D+24,5
8,1
1,5
8,2
1,6
1
0,6
0,35
0,2
180
G* (diametrical clearance)= G1+G2+G3 where:  G1= Initial maximum clearance. 
G2= Elastic deformation clearance under pression 
G3= Maximum consequential wear clearance foreseen. 

 HOUSING ON PISTON

HD ROTOSLIPPER series NPSR installation on the piston

 A
F
L
R
 S G*
extrusion max. clearence
Housing in closed groove from A=
standard groove
special groove
groove diameter
groove width
  
min
 H8
h9
H12
    
Bar 50
100
200
400
800
8-29
6-100
A-5
2,2
0,4
1,2
0,4
0,4
0,3
0,2
0,1
25
30-69
12-250
A-7,7
3,2
0,6
2,2
0,7
0,6
0,5
0,3
0,15
30
70-132
15-450
A-11,5
4,2
0,8
2,6
1
0,9
0,5
0,3
0,15
60
133-329
17-650
A-15,5
6,3
1
5,6
1,2
0,9
0,5
0,35
0,2
100
330-689
130-1100
A-21
8,1
1,5
8,2
1,6
1
0,6
0,35
0,2
180
690-1100
130-1100
A-24,5
8,1
1,5
8,2
1,6
1
0,6
0,35
0,2
300
G* (diametrical clearance)= G1+G2+G3 where:  G1= Initial maximum clearance. 
G2= Elastic deformation clearance under pression 
G3= Maximum consequential wear clearance foreseen. 

CHOICE OF MATERIALS

For normal oleodinamic rotational use, the seals are provided in the standard 000/NBR material
For other uses consult the Choice of Materials and contact our technical office.

HOW TO ORDER

HD Rotoslipper |_A_| |_B_| |_C_| |_D_| |_E_| 

where:

  • A = Type (NPSR o NCSR)
  • B = Cylinder bore or rod diameter
  • C = NEUFLON grade (usually 033)
  • D = Elastomer type (usually NBR)
  • E = Groove radial depth (special sizes only) 
 EXAMPLE
  • Shaft  125
  • NEUFLON grade 033 
  • NBR O-Ring 
  • Special groove radial depth 11.5/2 = 5.75 
HD Rotoslipper NCSR 125  033 NBR 5.75
© Copyright  HD Slippers srl  1998 all rights reserved

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