ROSTA
4.4
Tensioner Devices
Selection table
Identification
Characteristics
Working temperature
Details
Illustration
Standard tensioner devices
SE
Standard
component
Steel parts ROSTA blue painted.
Rubber quality Rubmix 10.
Housing and inner core made out of steel.
– 40 ° to + 80 ° C
Page 4.6
SE-G
Oil resistant
Steel parts galvanized.
Rubber quality Rubmix 20.
Marked with yellow dot.
– 30 ° to + 90 ° C
Page 4.6
SE-W
Heat resistant
Steel parts ROSTA blue painted.
Rubber quality Rubmix 40.
Marked with red dot.
Tension force 40% less than SE.
+ 80 ° to + 120 ° C
max.
Page 4.6
Additional tensioner devices
SE-R
Reinforced
lever arm
Arm and inner core especially welded for use
on combustion engines and compressors.
Steel parts ROSTA blue painted.
Marked with white ring.
Housing and inner core made out of steel, inserts Rubmix 10.
– 40 ° to + 80 ° C
Page 4.6
SE-I
Stainless steel
For the use in food- and pharmaceutic industries.
Material: GX5CrNi19-10.
Exception: SE-I 40 made out of X5CrNi18-10.
Page 4.6
SE-B
Boomerang
®
For the tensioning of very long chain and belt drives
(triple compensation).
Steel parts ROSTA blue painted.
Page 4.7
SE-F
Front
mounting
device
For installations on blind-hole frames
(fixation from the front only)
.
Steel parts ROSTA blue painted.
Hex socket screw quality 12.9.
Page 4.7
SE-FE
Front
mounting
device
For installations on blind-hole frames (fixation from the
front only)
. Steel parts black painted.
Hex socket screw quality 12.9.
Especially designed for engine applications.
see page 4.7
Page 4.7
Accessories chain drives
Sprocket wheel set N
Allows accurate positioning of relevant chain track.
Ball-bearings
2Z/C3, permanently lubricated.
– 40 ° to + 100 ° C
Page 4.8
Sprocket wheel N
Chain rider set P
For double sided use.
Max. allowed chain speed 1.5 m/sec.
Material: POM-H.
– 40 ° to + 100 ° C
Page 4.9
Chain rider P
Accessories belt drives
Tensioning roller R
Material: PA 6.
Ball-bearings 2Z/C3, permanently lubricated.
– 35 ° to + 100 ° C
Page 4.10
Tensioning roller
light RL
Material: PA 6.
Ball-bearings 2Z/C3, permanently lubricated.
– 35 ° to + 80 ° C
Page 4.10
Further information to customized elements and installation examples as from page 4.12.