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  • BRAND:
  • SKU: 1796604
  • MODEL: 68514453283

SE-F50 Frount Mount Tensioner

$627.85 Each


  • Typically ships in: 1 day
  • Weight: 25.1 lb
  • Free shipping on orders over $20

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Additional Description

RunRight SE-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.
TypeChain/Belt Tensioner
Element MaterialNatural Rubber
UPC Number53283
Dimensional Data
Mounting Bolt SizeM20
Outside Diameter (Dim D)5.12 in130 mm
Overall Length (Dim E)8.27 in210 mm
Idler Bolt Size3/4 - 10 x 6
Dimension L11.42 in290 mm
Dimension J-19.84 in250 mm
Dimension J-27.87 in200 mm
Dimension M0.9 in23 mm
Dimension R1.06 in27 mm
Dimension G0.79 in20 mm
Dimension O0.79 in20 mm
Dimension P0.67 in17 mm
Dimension K3.15 in80 mm
Cubic inches483.55021 in³
Performance Data
Normal Temperature Range-40 to 180 ºF-40 to 80 ºC
Force at 20° Angle of Pretension (Normal Force Level) (Dimension F)483.3 lb2150 N
Distance at 20° Angle of Pretension (Normal Force Level) (Dimension S)3.4 in86 mm
  • 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.


OD 5.120 in

Return policy

Item must be unused.

Item must be in it's original package.

Restocking, shipping and handling fees may applied to any return with this manufacturer.

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Product's availability

State of California Proposition 65 Product Warning