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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-15-TENSNR MM

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 F15-M

Mounting Bolt Size

 N/A M6

Outside Diameter (Dim D)

 N/A 45 mm1.77 in

Overall Length (Dim E)

 N/A 64 mm2.52 in

Dimension T

 N/A 10.5 mm

Dimension L

 N/A 112.5 mm4.43 in

Dimension J-1

 N/A 100 mm3.94 in

Dimension J-2

 N/A 80 mm3.15 in

Dimension M

 N/A 12 mm

Dimension R

 N/A 10 mm

Dimension G

 N/A 5 mm0.2 in

Dimension O

 N/A 8 mm0.31 in

Dimension P

 N/A 8.5 mm0.33 in

Dimension K

 N/A 25 mm0.98 in

Performance Data

Normal Temperature Range

 N/A -40 to 180 ºC-40 to 80 ºF

Mounting Bolt Torque

 N/A 25 N·m221 in·lb

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

 N/A 65 N14.6 lb

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

 N/A 34 mm1.3 in

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.
  • 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).