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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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Part Number

Description 

Mounting Bolt Size

Outside Diameter (Dim D)

Overall Length (Dim E)

Idler Bolt Size

Dimension L

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

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

CAD

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N/A RT 15 TENSIONER IN- W/O IDLER HDWR N/A M8 x 25 N/A 1.77 in N/A 2.52 in45 mm N/A N/A 4.43 in112.5 mm N/A 14.6 lb65 N N/A 1.3 in34 mm N/A
N/A RT 15 TENSIONER IN-W/O HARDWARE N/A M8 x 25 N/A 1.77 in N/A 2.52 in45 mm N/A N/A 4.43 in112.5 mm N/A 14.6 lb65 N N/A 1.3 in34 mm N/A
N/A RT-R15 TENSIONER IN N/A M8 x 25 N/A 1.77 in N/A 2.52 in45 mm N/A 1/2 - 13 x 2 N/A 4.43 in112.5 mm N/A 14.6 lb65 N N/A 1.3 in34 mm N/A CAD
N/A RT H15 TENSIONER, HIGH TEMP N/A M8 x 25 N/A 1.77 in N/A 2.52 in45 mm N/A 1/2 - 13 x 2 N/A 4.43 in112.5 mm N/A N/A 1.3 in34 mm N/A CAD
N/A RT N15 TENSIONER W/NEOPRENE, OIL RESISTANT N/A M8 x 25 N/A 1.77 in N/A 2.52 in45 mm N/A 1/2 - 13 x 2 N/A 4.43 in112.5 mm N/A 14.6 lb65 N N/A 1.3 in34 mm N/A CAD
N/A RT 15 RUNRIGHT TENSIONER, STANDARD N/A M8 x 25 N/A 1.77 in N/A 2.52 in45 mm N/A 1/2 - 13 x 2 N/A 4.43 in112.5 mm N/A 14.6 lb65 N N/A 1.3 in34 mm N/A CAD
N/A RT N11 TENSIONER W/NEOPRENE, OIL RESISTANT N/A M6 x 20 N/A 1.38 in N/A 2.01 in35 mm N/A 3/8 - 16 x 2 N/A 3.54 in90 mm N/A 9 lb40 N N/A 1.1 in28 mm N/A CAD
N/A RT 11 RUNRIGHT TENSIONER, STANDARD N/A M6 x 20 N/A 1.38 in N/A 2.01 in35 mm N/A 3/8 - 16 x 2 N/A 3.54 in90 mm N/A 9 lb40 N N/A 1.1 in28 mm N/A CAD
N/A RT N50 TENSIONER INCH GAL N/A M24 x 60 N/A 5.120 in N/A 8.270 in130 mm N/A 3/4 - 10 x 6 N/A 11.42 in290 mm N/A 483.3 lb2150 N N/A 3.4 in86 mm N/A CAD
N/A RT H50 TENSIONER, HIGH TEMP N/A M24 x 60 N/A 5.120 in N/A 8.270 in130 mm N/A 3/4 - 10 x 6 N/A 11.42 in290 mm N/A N/A 3.4 in86 mm N/A CAD
N/A RT 50 RUNRIGHT TENSIONER, STANDARD N/A M24 x 60 N/A 5.120 in N/A 8.270 in130 mm N/A 3/4 - 10 x 6 N/A 11.42 in290 mm N/A 483.3 lb2150 N N/A 3.4 in86 mm N/A CAD
N/A RT 45 TENSIONER IN W/MNTNG HDWR N/A M20 x 50 N/A 4.53 in N/A 7.87 in115 mm N/A 3/4 - 10 x 6 N/A 10.24 in260 mm N/A 292.5 lb1300 N N/A 3.1 in78 mm N/A
N/A RT H45 TENSIONER, HIGH TEMP N/A M20 x 50 N/A 4.53 in N/A 7.87 in115 mm N/A 3/4 - 10 x 6 N/A 10.24 in260 mm N/A N/A 3.1 in78 mm N/A CAD
N/A RT N45 TENSIONER W/NEOPRENE, OIL RESISTANT N/A M20 x 50 N/A 4.53 in N/A 7.87 in115 mm N/A 3/4 - 10 x 6 N/A 10.24 in260 mm N/A 292.5 lb1300 N N/A 3.1 in78 mm N/A CAD
N/A RT 45 RUNRIGHT TENSIONER, STANDARD N/A M20 x 50 N/A 4.53 in N/A 7.87 in115 mm N/A 3/4 - 10 x 6 N/A 10.24 in260 mm N/A 292.5 lb1300 N N/A 3.1 in78 mm N/A CAD
N/A RT38 TENSIONER IN W/O IDLER HDWR N/A M16 x 40 N/A 3.74 in N/A 5.51 in95 mm N/A N/A 8.07 in205 mm N/A 164.1 lb730 N N/A 2.4 in60 mm N/A
N/A RT H38 TENSIONER, HIGH TEMP N/A M16 x 40 N/A 3.74 in N/A 5.51 in95 mm N/A 3/4 - 10 x 5 N/A 8.07 in205 mm N/A N/A 2.4 in60 mm N/A CAD
N/A RT N38 TENSIONER W/NEOPRENE, OIL RESISTANT N/A M16 x 40 N/A 3.74 in N/A 5.51 in95 mm N/A 3/4 - 10 x 5 N/A 8.07 in205 mm N/A 164.1 lb730 N N/A 2.4 in60 mm N/A CAD
N/A RT 38 RUNRIGHT TENSIONER, STANDARD N/A M16 x 40 N/A 3.74 in N/A 5.51 in95 mm N/A 3/4 - 10 x 5 N/A 8.07 in205 mm N/A 164.1 lb730 N N/A 2.4 in60 mm N/A CAD
N/A RT 27 TENSIONER IN-NO IDLR HDWR-50PK N/A M12 x 40 N/A 3.07 in N/A 4.25 in78 mm N/A N/A 6.1 in155 mm N/A 85.4 lb380 N N/A 1.7 in44 mm N/A
N/A RT27 TENSIONER IN W/O IDLER HDWR N/A M12 x 40 N/A 3.07 in N/A 4.25 in78 mm N/A 1/2 - 13 x 3-1/2 N/A 6.1 in155 mm N/A 85.4 lb380 N N/A 1.7 in44 mm N/A
N/A RT-R27 TENSIONER IN N/A M12 x 40 N/A 3.07 in N/A 4.25 in78 mm N/A 1/2 - 13 x 3-1/2 N/A 6.1 in155 mm N/A 85.4 lb380 N N/A 1.7 in44 mm N/A CAD
N/A RT H27 TENSIONER, HIGH TEMP N/A M12 x 40 N/A 3.07 in N/A 4.25 in78 mm N/A 1/2 - 13 x 3-1/2 N/A 6.1 in155 mm N/A N/A 1.7 in44 mm N/A CAD
N/A RT N27 TENSIONER W/NEOPRENE, OIL RESISTANT N/A M12 x 40 N/A 3.07 in N/A 4.25 in78 mm N/A 1/2 - 13 x 3-1/2 N/A 6.1 in155 mm N/A 85.4 lb380 N N/A 1.7 in44 mm N/A CAD
N/A RT 27 RUNRIGHT TENSIONER, STANDARD N/A M12 x 40 N/A 3.07 in N/A 4.25 in78 mm N/A 1/2 - 13 x 3-1/2 N/A 6.1 in155 mm N/A 85.4 lb380 N N/A 1.7 in44 mm N/A CAD
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