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All Product Types > INDUSTRIAL MOTION PRODUCTS > RunRight® Rubber Suspension Parts Catalog > RunRight® Tensioner Devices > RunRight® Metric Tensioners - Type RT F (Front Mount) > Part Number 68514485030  
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Part Number 68514485030, RunRight® Metric Tensioners - Type RT F (Front Mount)



RunRight® RT F tensioners are designed for front mounting applications where access to back side or rear mounting surfaces is not possible. A single threaded hole is required to mount these tensioners. These tensioners include a special mounting screw and spacer bushing. They are manufactured with powder metal or cast iron housings, cast iron arms and inner square, come with the standard Tensys™ 10 rubber inserts, and can be used for applications operating within a -40° to 180°F (-40° to 80°C) temperature range.





Unit of Measure: Imperial Metric Both

Specifications  · Dimensional Data  · Performance Data  · Notes

Specifications

Description 

RT-F-45-TENSNR MM

Type

Chain/Belt Tensioner

Element Material

Natural Rubber

Style

Elastomeric

Color

Black


Dimensional Data

Tensioner

RT F45-M

Mounting Bolt Size

M16

Outside Diameter (Dim D)

115 mm
4.53
in

Overall Length (Dim E)

200 mm
7.87
in

Dimension T

20.5 mm

Dimension L

260 mm
10.24
in

Dimension J-1

225 mm
8.86
in

Dimension J-2

180 mm
7.09
in

Dimension M

32 mm

Dimension R

24 mm

Dimension G

12 mm
0.47
in

Dimension O

18 mm
0.71
in

Dimension P

12.5 mm
0.49
in

Dimension K

70 mm
2.76
in


Performance Data

Normal Temperature Range

-40 to 180 ºC
-40 to 80
ºF

Mounting Bolt Torque

410 N·m
3629
in·lb

Force at 20° Angle of Pretension (Normal Force Level) (Dimension F)

1300 N
292.5
lb

Distance at 20° Angle of Pretension (Normal Force Level) (Dimension S)

78 mm
3.1
in


Notes

Notes 

  • The recommended angle of pretension is 20°. This provides the tensioner a maximum capability to absorb vibrations and shock loads, while also maintaining a range of motion to address the system’s belt or chain stretch.
  • Mounting accessories into the “Hard” Position results in approximately 25% higher tensioning force over the “normal” position.
  • Metric standard tensioner units all come with a mounting screw, but do not come with the sprocket idler bolt (which is supplied instead with RunRight metric idler sprockets).


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