NRC  ROTOWIPERS
MONODIRECTIONAL SEALS FOR SLOW ROTATING SHAFTS
THIS SECTION DESCRIBES A SYSTEM OF MONODIRECTIONAL SEALS, TO BE  INSTALLED IN A SERIES OF GROOVES UNIFIED WITH NR WIPERS
APPLICATIONS
  • DESIGNED FOR  SHAFTS  SUBJECTED TO SLOW  ROTATIONAL  MOVEMENTS AND/OR TRANSLATIVE MOVEMENTS  IN HYDRAULIC AND PNEUMATIC APPLICATIONS
  • PIN JOINTS SUBJECTED TO SLOW OSCILLATING MOVEMENTS
GENERAL FEATURES: FIELD OF APPLICATION:
  • Minimum encumbrance
  • Very low friction
  • High temperature resistance
  • Ample chemical resistance range
  • T max.  120 °C 
  • up to 250 °C with special materials 
  • Linear Speed up to 5 m/sec
 

  • NRC  ROTOWIPERS  are made up of an element in NEUFLON  and an O-Ring which is the energyzer element.
  • SWIWEL JOINTS: The excess grease formed during periodical greasing is easily drained out.

ADVANTAGES
  • Long life.
  • Low friction resistance.
  • Closed groove installation.
  • Minimum groove encumbrance. Complete reliability due to the energyzed lip and the sharp and compact sealing lip.
D  rod diameter
E
I
max.
L
R
max.
S
min.
Housingin closed groove from the diameter
standard groove range
special groove range
groove diameter
groove width
h8
H9
H12
H12
6-11
3-100
D+4,8
D+2,5
3,7
0,3
1,4
15
12-64
8-250
D+6,8
D+3
5
0,3
2,6
20
65-250
10-450
D+8,8
D+3,5
6
0,4
3
30
251-420
15-650
D+12,2
D+4
8,4
0,5
7
 40
421-650
120-1100
D+16
D+5
11
0,6
10
 50
651-1100
-
D+23
D+7
16
0,8
17
 651

Standard Materials : NEUFLON-009 grade  and NBR.    For special conditions see materials choice list.
 

HOW TO ORDER

NRC  Rotowiper             (Rod Diameter )                            (Rotowiper material)               (O-Ring material)              Groove width(special sizes only)
EXAMPLES: 
60 mm rod 
Materials: Ring in NEUFLON-032, O-Ring in NBR
Special groove : groove width 3,7
Rotowiper NRC  60 -  031 -  NBR 3,7		 120 mm rod 
Materials: Ring in NEUFLON-009,  O-Ring in NBR
Standard groove
Rotowiper NRC 120 -  009 - NBR
 
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