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RunRight Elastomeric Tensioner


RunRight Elastomeric Tensioner
Item #102084667
  • 27 in Size
  • Chain/Belt Tensioner Type
RunRight Elastomeric Tensioner
    Shipment Options
  • 27 in Size
  • Chain/Belt Tensioner Type


  • At the optimum angle of 20°, the tensioner has the maximum capability to absorb vibrations or shock loads and still has enough arc of motion to automatically take up belt or chain stretch.


  • Belt and chain tensioning
  • Pressing
  • Cushioning
  • Hold-down
  • Guide rollers
  • Belt scrapers
  • Brake bars
  • Cleaning brushes
  • Conveyor shock absorbers
  • Limit stops


  • Chain and belt life is increased as much as 30% by eliminating slap and vibration, while minimizing drive bearing and shaft wear
  • Self-adjusting
  • no periodic adjustments are necessary
  • Because of the elastomeric elements, the tensioner has the capacity to absorb shock loads and vibrations in the drive
  • Simple to mount, with only one bolt required to do so, and has 360° positioning flexibility
  • Maintenance-free
  • since the tensioner uses no metal-to-metal connections, no lubrication is required
  • provides silent operation
  • Dirt and grime will not affect operation, so it can be used indoors or out from -40 °F to 180 °F (-40 °C to 80 °C)
  • Check to be certain that the idler sprocket or pulley will still clear the space available between the base housing and the mounting hole
  • Note: Idlers, sprockets and pulley accessories are available online
Outside Dia. 3.0700 in
Housing Length 4 1/4 in
Force @ 10° Angle of Pretension Normal 33.8 lbf
Housing Diameter 3.07 in
Chain Size 40-3, 41-3, 50, 50-2, 50-3, 60, 60-2, 60-3
Coupling Size RT27
Temperature Range [Min] -40 °F
Overall Length 4 1/4 in
Temperature Range [Max] 180 °F
Mounting Bolt Size M12 X 40
Color Blue
Belt Size 2" Wide Flat, D, E, 3" Wide Flat, 4" Wide Flat
Distance @ 20° Angle of Pretension 1.7 in
Material Natural Rubber
Idler Bolt Size 1/2 - 13 x 3 1/2
Coupling Type Chain/Belt Tensioner
Insert Style Elastomeric
Force @ 10° Angle of Pretension Hard 43.8 lbf
Size 27 in
Force @ 30° Angle of Pretension Normal 179.8 lbf
Mounting Bolt Torque 761 in lb
Force @ 20° Angle of Pretension Normal 85.4 lbf
Type Chain/Belt Tensioner
Arm Height/Length 6.1 in
Force @ 20° Angle of Pretension Hard 111.1 lbf
Force @ 30° Angle of Pretension Hard 233.8 lbf
Weight 4.31 LB
EAN or UPC 685144174543
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