The Timken Company - RunRight® Metric 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 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	68514485264 RunRight® Metric Tensioners - Type RT, RT N, RT H, RT R	68514485265 RunRight® Metric Tensioners - Type RT, RT N, RT H, RT R	68514485266 RunRight® Metric Tensioners - Type RT, RT N, RT H, RT R	68514485267 RunRight® Metric Tensioners - Type RT, RT N, RT H, RT R	68514485268 RunRight® Metric Tensioners - Type RT, RT N, RT H, RT R
Description	N/A RT-11-TENSNR MM	N/A RT-15-TENSNR MM	N/A RT-18-TENSNR MM	N/A RT-27-TENSNR MM	N/A RT-38-TENSNR MM
Tensioner	N/A RT11-M	N/A RT15-M	N/A RT18-M	N/A RT27-M	N/A RT38-M
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 35 mm1.38 in	N/A 45 mm1.77 in	N/A 58 mm2.28 in	N/A 78 mm3.07 in	N/A 95 mm3.74 in
Overall Length (Dim E)	N/A 51 mm2.01 in	N/A 64 mm2.52 in	N/A 79 mm3.11 in	N/A 108 mm4.25 in	N/A 140 mm5.51 in
Color	N/A Black
Normal Temperature Range	N/A -40 to 180 ºC-40 to 80 ºF
Dimension T	N/A 8.5 mm	N/A 10.5 mm	N/A 10.5 mm	N/A 12.5 mm	N/A 20.5 mm
Dimension L	N/A 90 mm3.54 in	N/A 112.5 mm4.43 in	N/A 115 mm4.53 in	N/A 155 mm6.1 in	N/A 205 mm8.07 in
Dimension J-1	N/A 80 mm3.15 in	N/A 100 mm3.94 in	N/A 100 mm3.94 in	N/A 130 mm5.12 in	N/A 175 mm6.89 in
Dimension J-2	N/A 60 mm2.36 in	N/A 80 mm3.15 in	N/A 80 mm3.15 in	N/A 100 mm3.94 in	N/A 140 mm5.51 in
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 5 mm0.2 in	N/A 5 mm0.2 in	N/A 7 mm0.24 in	N/A 8 mm0.31 in	N/A 10 mm0.39 in
Dimension O	N/A 6 mm0.24 in	N/A 8 mm0.31 in	N/A 10.5 mm0.41 in	N/A 15 mm0.59 in	N/A 15 mm0.59 in
Dimension P	N/A 8 mm0.31 in	N/A 8.5 mm0.33 in	N/A 8.5 mm0.33 in	N/A 10.5 mm0.41 in	N/A 12.5 mm0.49 in
Dimension K	N/A 20 mm0.79 in	N/A 25 mm0.98 in	N/A 30 mm1.18 in	N/A 50 mm1.97 in	N/A 60 mm2.36 in
Force at 20° Angle of Pretension (Normal Force Level) (Dimension F)	N/A 40 N9 lb	N/A 65 N14.6 lb	N/A 180 N40.5 lb	N/A 380 N85.4 lb	N/A 730 N164.1 lb
Distance at 20° Angle of Pretension (Normal Force Level) (Dimension S)	N/A 28 mm1.1 in	N/A 34 mm1.3 in	N/A 34 mm1.3 in	N/A 44 mm1.7 in	N/A 60 mm2.4 in
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