Guide rings | Ptfe rod guide rings

 
Ptfe rod guide rings

A Neuflon-PTFE compound tape intended to be used as a guiding element in hydraulic and pneumatic applications
Long life of both the skate and the sliding surface. Low friction and no Stick-Slip. Possibility of dry running. Exceptional resistance to the 'Diesel effect'. Ample thermal and chemical resistance. Ready availability from coils.

Cross Section Code S
Thickness
E
Groove diameter
L
Groove width
G
Rod-Box clearence
Z
Gap clearence
length
    J8 - H8 H11 max S x 0,4   +0 / -0,3
HD SC   3/1,5 1,5 D + 2 x S 3,2 depends from the seal
max S x 0,4
1 + D x 0,03 3,14x(D+S)-Z
HD SC   3/2,5 2,5 3,2
HD SC   4/1,5 1,5 4,2
HD SC   4/2,5 2,5 4,2
HD SC   6/1,5 1,5 6,3
HD SC   6/2,5 2,5 6,3
HD SC   8/1,5 1,5 8,1
HD SC   8/2,5 2,5 8,1
HD SC   9/2,5 2,5 9,7
HD SC 15/2,5 2,5 15
HD SC 20/2,5 2,5 20
HD SC 25/2,5 2,5 25
HD SC 30/2,5 2,5 30
ELASTOPLASTIC DEFORMATION / LOAD
FRICTION COEFFICIENT / SPEED
   
      MATERIAL
CHARACTERISTICS SPECIFICATION UNITS NEUFLON-071 NEUFLON-059
SPECIFIC LOAD Qs T <=100°C   N.mm-2 2.5 2.6
Compression modulus at 1% of deformation D695-54 N.mm-2 8 8.40
Hardness D53505 Shore D 60 65
Friction Coefficient     0.12 0.13
Max. Speed   m/sec 5 5
Thermal expansion coefficient D696-70 10^-6 / °C 90 85
Continual operational Temp.   °C 250 250
Peak Temperature   °C 300 300
Compatible with hydraulic oil     yes yes
Compatible with water/oil emulsions     yes yes
Compatible with DOT 3   DOT4     yes yes
Compatible with water     no yes
Compatible with phosphoric esters     yes yes
Flammability D635-68   fire resistant fire resistant