The Timken Company - RunRight® Inch (Imperial) Tensioners - Type RT, RT N, RT H, RT R

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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 (-30° to 90°C) temperature range.

RunRight RT H tensioners enable a reduction of tensioning force of up to 40% when compared to the RT and RT N tensioners. The Tensys 40 heat resistant rubber inserts are ideal for applications operating within a 180° to 250°F (80° to 120°C) temperature range.

RunRight RT R tensioners are for use on internal combustion engines and compressors. They are manufactured with powder metal or cast iron housings, fully welded steel 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.

The RT 11 to RT 27 housings are manufactured from powder metal, anything larger is manufactured out of cast iron. All arms and inner squares are cast iron. All of the tensioners include a zinc plated mounting screw and locking washer.

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Unit of Measure

Items	68514417451 RunRight® Inch (Imperial) Tensioners - Type RT, RT N, RT H, RT R	68514417452 RunRight® Inch (Imperial) Tensioners - Type RT, RT N, RT H, RT R	68514417453 RunRight® Inch (Imperial) Tensioners - Type RT, RT N, RT H, RT R	68514417454 RunRight® Inch (Imperial) Tensioners - Type RT, RT N, RT H, RT R	68514417455 RunRight® Inch (Imperial) Tensioners - Type RT, RT N, RT H, RT R
Description	N/A RT-11-TENSNR IN	N/A RT-15-TENSNR IN	N/A RT-18-TENSNR IN	N/A RT-27-TENSNR IN	N/A RT-38-TENSNR IN
Tensioner	N/A RT11	N/A RT15	N/A RT18	N/A RT27	N/A RT38
Mounting Bolt Size	N/A M6 x 20	N/A M8 x 25	N/A M10 x 30	N/A M12 x 40	N/A M16 x 40
Type	N/A Chain/Belt Tensioner
Element Material	N/A Natural Rubber
Style	N/A Elastomeric
Outside Diameter (Dim D)	N/A 1.38 in	N/A 1.77 in	N/A 2.28 in	N/A 3.07 in	N/A 3.74 in
Overall Length (Dim E)	N/A 2.01 in35 mm	N/A 2.52 in45 mm	N/A 3.11 in58 mm	N/A 4.25 in78 mm	N/A 5.51 in95 mm
Color	N/A Black
Normal Temperature Range	N/A -40 to 180 ºF-40 to 80 ºC
Idler Bolt Size	N/A 3/8 - 16 x 2	N/A 1/2 - 13 x 2	N/A 1/2 - 13 x 2-1/2	N/A 1/2 - 13 x 3-1/2	N/A 3/4 - 10 x 5
Dimension L	N/A 3.54 in90 mm	N/A 4.43 in112.5 mm	N/A 4.53 in115 mm	N/A 6.1 in155 mm	N/A 8.07 in205 mm
Dimension J-1	N/A 3.15 in80 mm	N/A 3.94 in100 mm	N/A 3.94 in100 mm	N/A 5.12 in130 mm	N/A 6.89 in175 mm
Dimension J-2	N/A 2.36 in60 mm	N/A 3.15 in80 mm	N/A 3.15 in80 mm	N/A 3.94 in100 mm	N/A 5.51 in140 mm
Dimension M	N/A 20 mm	N/A 25 mm	N/A 30 mm	N/A 40 mm	N/A 40 mm
Dimension G	N/A 0.2 in5 mm	N/A 0.2 in5 mm	N/A 0.24 in7 mm	N/A 0.31 in8 mm	N/A 0.39 in10 mm
Dimension O	N/A 0.24 in6 mm	N/A 0.31 in8 mm	N/A 0.41 in10.5 mm	N/A 0.59 in15 mm	N/A 0.59 in15 mm
Dimension P	N/A 0.31 in8 mm	N/A 0.33 in8.5 mm	N/A 0.33 in8.5 mm	N/A 0.41 in10.5 mm	N/A 0.49 in12.5 mm
Dimension K	N/A 0.79 in20 mm	N/A 0.98 in25 mm	N/A 1.18 in30 mm	N/A 1.97 in50 mm	N/A 2.36 in60 mm
Force at 20° Angle of Pretension (Normal Force Level) (Dimension F)	N/A 9 lb40 N	N/A 14.6 lb65 N	N/A 40.5 lb180 N	N/A 85.4 lb380 N	N/A 164.1 lb730 N
Distance at 20° Angle of Pretension (Normal Force Level) (Dimension S)	N/A 1.1 in28 mm	N/A 1.3 in34 mm	N/A 1.3 in34 mm	N/A 1.7 in44 mm	N/A 2.4 in60 mm
UPC Number	N/A
Cubic inches	N/A 9.81925 in³	N/A 19.75957 in³	N/A 32.12132 in³	N/A 79.58975 in³	N/A 166.30172 in³