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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

Specifications

Description 

 N/A RT-F-50-TENSNR IN

Type

 N/A Chain/Belt Tensioner

Element Material

 N/A Natural Rubber

Style

 N/A Elastomeric

Color

 N/A Black

Dimensional Data

Tensioner

 N/A RT F50

Mounting Bolt Size

 N/A M20

Outside Diameter (Dim D)

 N/A 5.120 in130 mm

Overall Length (Dim E)

 N/A 8.270 in210 mm

Idler Bolt Size

 N/A 3/4 - 10 x 6

Dimension L

 N/A 11.42 in290 mm

Dimension J-1

 N/A 9.84 in250 mm

Dimension J-2

 N/A 7.87 in200 mm

Dimension M

 N/A 0.9 in23 mm

Dimension R

 N/A 1.06 in27 mm

Dimension G

 N/A 0.79 in20 mm

Dimension O

 N/A 0.79 in20 mm

Dimension P

 N/A 0.67 in17 mm

Dimension K

 N/A 3.15 in80 mm

Cubic inches

 N/A 483.55021 in³

Performance Data

Normal Temperature Range

 N/A -40 to 180 ºF-40 to 80 ºC

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

 N/A 483.3 lb2150 N

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

 N/A 3.4 in86 mm

Notes

Notes 

 N/A
  • 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.
  • Inch (imperial) standard tensioner units all come with both the mounting screw and a zinc-plated idler bolt with nuts.
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