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Turcon ® Roto Glyd Ring ®
ELASTOMER ENERGIZED TURCON ® SEALS
Turcon R Roto Glyd Ring R
Description
The Turcon R Roto Glyd Ring R is used to seal rods, shafts,
axles, bores, rotary leadthroughs, journals, swivels etc.
with rotary or oscillating movement.
The seal is double-acting and can be exposed to pressure
from one, or from both sides.
The rear face which holds the O-Ring has a concave form.
This increases the contact surface and shall prevent the
seal from turning with the rotating surface.
A standard diameter range for each profile size is
assigned to the series numbers in Table LXXIII and LXXI.
This recommendation applies to all new constructions.
Different dimensions are available on request.
Notches
Advantages
- Available for internal and external sealing applications
- Low friction
- Stick-slip-free starting, no sticking
- High abrasion resistance and dimensional stability
- Simple groove design, small groove dimensions
- Lubricant reservoir
- Available in all sizes up to 2700 mm diameter
(to 2600 mm for rod seals)
Grooves
O-Ring
Technical data
Operating
pressure:
Tur con R
RotoGlyd Ring R
Up to 30 MPa
Speed:
Up to 2 m/s
p
p
Temperature:
- 45
C
(depending on O-Ring material)
(For applications at low temperatures
below -30
C to + 200
C, please contact B+S).
Figure 119 Turcon R Roto Glyd Ring R
It consists of a seal ring of Turcon R materials and is
activated by an O-Ring as an elastic energising element.
The contact surface profile of the seal ring is specially
designed for use under high pressures and at low sliding
speeds.
Depending on the profile cross-section of the seal, the
contact surface has one or two continuous machined
grooves. These have the following functions:
- Improved seal efficiency by increasing the specific
surface load pressure against the sealed surface
- Formation of
Media:
Mineral oil based on hydraulic fluids,
flame retardant hydraulic fluids,
environmentally safe hydraulic fluids
(bio-oils), water, air and others,
depending on O-Ring material.
Note:
For continuous operation at tempera-
tures over +60
C, pressure and
speed must be limited.
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 and temperature.
lubricant
reservoir and reduction in
friction.
In order to improve the pressure activation of the O-Ring,
the Roto Glyd Ring R has notched end faces as standard.
198
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Turcon ® Roto Glyd Ring ®
Frictional power
Guide values for the frictional power can be determined
from the graphs in Figures 4 and 5. They are shown as a
function of the sliding speed and operating pressure for
a shaft diameter of 50 mm with an oil temperature of 60
Application examples
The Turcon R Roto Glyd Ring R is the preferably used as a
double acting rotary seal for hydraulic and pneumatic
equipment in sectors such as:
C.
At higher temperatures, these application limits must be
reduced.
S Rotary distributors
S High pressure valve stems
S Manipulators
Guide values for other shaft diameters can be calculated
using the formula:
S Pivoting motors in mobile hydraulic and machine tools
S Hydraulic motors
d
(
)
[W]
P ' P 50 x
Application limits
The maximum application data for temperature, pressure
and speed given in this catalogue have a mutual effect on
one another and can thus not be exploited simultaneously.
50 mm
400
W
300
1m/s
Seal performance is further influenced by such factors as
lubrication capability of the sealed medium and heat
dissipation in the hardware, it follows that testing should
always be made.
Shaft dia. 50 mm
0.5 m/s
200
0.25 m/s
With good lubrication, the following pv values can be
assumed as guide values:
Tur con R Roto Glyd Ring R : pto v= .5Ma⋅ m/s
0.15 m/s
100
0
0
10
20
MPa
30
These values must be reduced for diameters > 50 mm.
Pressure
Lead-in chamfers
In order to avoid damage during installation, lead-in
chamfers and rounded edges must be provided on the
housing and on the rod (Figures 121 and 122). If this is
not possible for design reasons, a separate installation
tool is recommended.
Figure 120 Frictional power for
Tu r con R Roto Glyd Ring R
The guide values apply for constant operating conditions.
Changes in operating conditions such as pressure
fluctuations or alternating directions of shaft rotation can
result in considerably higher friction values.
The minimum length of the lead-in chamfer depends on the
profile size of the seal and can be seen from the following
tables. If concentricity between the parts is not ensured
during installation the lead-in chamfers must be increased
correspondingly.
For the surface quality of the lead-in chamfer, the same
recommendations apply as given for the sealing surfaces
in Table LXX.
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Turcon ® Roto Glyd Ring ®
The material contact area R mr should be approx. 50 to
70%, determined at a cut depth c = 0.25 x R z ,relativeto
a reference line of C ref .5%.
10 _ -20 _
Closed grooves
Tur con ® Roto Glyd Ring ® for external and internal sealing
can be installed in closed grooves at diameters from ø 15
an ø 12 respectively. Seal cross sections used outside of
their recommended diameter range require split grooves
according to table LXIX below.
blend radius
polished
C
Table LXIX Groove type - closed or split
Split grooves required below
Figure 121 Lead-in chamfer on bore
Series
Turci te ® T40
Turci te ® T10
TG40
ø15
ø25
TG41
ø25
ø38
blend radius
TG42
ø32
ø50
polished
TG43
ø50
ø75
TG30
ø12
10 _ -20 _
TG31
ø18
TG32
ø33
TG33
ø60
C
Figure 122 Lead-in chamfer on rod
Table LXVII
Lead-in chamfers for
Turcon R Roto Glyd Ring R
Series
Lead-in chamfers
length C min.
TG40
TG30
2.0
TG41
TG31
2.5
TG42
TG32
3.5
TG43
TG33
5.0
TG44
TG34
6.5
TG45
TG35
7.5
Table LXVIII
Surface
roughness
Surface roughness
m
Mating surface
G
Groove
surface
Parameter
Turcon R
materials
R max
0.63 - 2.50
< 16.0
R zDIN
0.40 - 1.60
< 10.0
R a
0.05 - 0.20
<1.6
200
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Turcon ® Roto Glyd Ring ®
Installation of Turcon R Roto Glyd Ring R
Installation of Turcon R Roto Glyd Ring R in
closed grooves
”Internal sealing”
Installation instructions
The following points
should be observed before
installation of the seals:
- Check whether housing or rod has a lead-in chamfer;
if not, use an installation sleeve
Observing the information in the chapter ”Installation
instructions” and the installation method recommended in
Table I, installation of our seal elements is unproblematical.
- Deburr and chamfer or round sharp edges, cover the
tips of any screw threads
- Place the O-Ring into the groove (avoid twisting the ring!)
- Compress the Turcon R Roto Glyd Ring R into a kidney
shape. The seal must have no sharp bends
- Remove machining residues such as chips, dirt and
other foreign particles and carefully clean all parts
- The seals can be installed more easily if they are
greased or oiled. Attention must be paid to the
compatibility of the seal materials with these lubricants.
Use only grease without
solid additives
(e.g.
molybdenum disulphide or zinc sulphide)
- Do not use installation tools with sharp edges.
Installation of Turcon R Roto Glyd Ring R in
split grooves
”Internal and external sealing”
Installation in split grooves is simple. During final
assembly - insertion of the rod - the Turcon R Roto Glyd
Ring R must be sized. The rod itself can be used for this
purpose, provided it has a long lead-in chamfer.
Alternatively a corresponding mandrel can be used.
Figure 124 Kidney-shaped deformation of the seal ring
- Place the seal ring in compressed form into the groove
and push against the O-Ring in the direction of the
arrow (Figure 125).
Figure 123 Installation in a split groove
The following installation sequence is recommended:
- Pull the O-Ring onto the RotoGlyd Ring R
Figure 125 Inserting the seal ring into the
closed groove
- Press the seal element into the groove. The O-Ringmust
not be allowed to twist.
- Finally size the seal ring using a mandrel which should
have a chamfer of 10
to 15
over a length of approx.
30 mm
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Turcon ® Roto Glyd Ring ®
30
10 _ -15 _
blend radius, polished
Figure 126 Sizing of the installed seal
The rod itself can also be used for sizing, provided that it
has a sufficiently long lead-in chamfer as per our
recommendations in Table LXVII.
Sizing mandrels should be made from a polymer material
(e.g. polyamide). In order to avoid damage to the seals,
a smooth surface with rounded and polished lead-in
chamfer is necessary.
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