RunRight® tensioner devices offer a full range of belt and chain tensioning options. They are manufactured 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.

RunRight RT N tensioners are manufactured with galvanized powder metal parts and are designed for outdoor or oily applications. The Tensys 20 neoprene inserts are oil resistant and can be used for applications operating within a -22° to 195°F (more

Unit of Measure

Specifications

Description 

RT-N-15-TENSNR IN GALV

Type

Chain/Belt Tensioner

Element Material

Neoprene

Style

Elastomeric

Color

Metallic

Dimensional Data

Tensioner

RT N15

Mounting Bolt Size

M8 x 25

Outside Diameter (Dim D)

1.77 in

Overall Length (Dim E)

2.52 in45 mm

Idler Bolt Size

1/2 - 13 x 2

Dimension L

4.43 in112.5 mm

Dimension J-1

3.94 in100 mm

Dimension J-2

3.15 in80 mm

Dimension M

25 mm

Dimension G

0.2 in5 mm

Dimension O

0.31 in8 mm

Dimension P

0.33 in8.5 mm

Dimension K

0.98 in25 mm

Cubic inches

19.75957 in³

Performance Data

Normal Temperature Range

-22 to 195 ºF-30 to 90 ºC

Mounting Bolt Torque

25 N·m221 in·lb

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

14.6 lb65 N

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

1.3 in34 mm

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