Lovejoy/Rosta SE18


Tensioner, Chain/Belt

SE18 46211
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ItemElastomeric Tensioner
ANSI Chain Size35, 40, 41
Flat Belt Width (In.)1, 2
V-Belt Size RangeB, C, 4L, 5L
Mounting Hole (In.)7/16
Mounting Hole (Metric)M10 x 30
Idler Bolt (In.)1/2-13 x 2-1/2
Temp. Range (F)-40 to 180
Normal 10 Deg. Force (Lb.)16.9
Hard 10 Degree Force (Lb.)20.9
10 Deg. Normal Dim. S (In.)0.67
Hard 20 Degree Force (Lb.)50.6
Normal 20 Deg. Force (Lb.)40.5
20 Degree Dim. S (In.)1.34
Hard 30 Degree Force (Lb.)98.2
Normal 30 Deg. Force (Lb.)78.7
30 Degree Dim. S (In.)1.97
Tensioning ArmDeflects Up to 30 Degrees Either Side of its Neutral Position Allowing a Pretension Force that Self-adjusts an Idler to Everyday Elongation of Chain or Belt while Dampening Vibration in the Drive
InsertFour Rubber, Inside Base Isolate Tensioning Arm from Contact with Base and Provide Continuous Resistance
FunctionEliminates Slap and Vibration while Minimizing Drive, Bearing and Shaft Wear, Keep Chain and Belts Taut Preventing Uneven Drive Surges and Power Losses
Application For Chain and Belt Tensioning, Pressing and Cushioning
Includes Mounting Bolt and Idler Bolt, 5/8" Bushing
Dimension D (In.)2.28
Dimension E (In.)3.11
Dimension G (In.)0.28
Dimension L (In.)4.53
Dimension N (In.)1.38
Dimension J1(In.)3.94
Dimension J2 (In.)3.15
Dimension K (In.)1.18
Dimension T (In.)0.53
Weight 1.700000


Chain/Belt Tensioner, ANSI Chain Size 35, 40 and 41, Flat Belt Width 1 and 2 Inches, V Belt Size Range B, C, 4L, 5L, Mounting Hole Size M10 x 30 Metric, Idler Bolt 1/2-13 x 2 1/2 Inches, Normal 10 Degrees Force 16.9 Pounds, Normal 20 Degrees Force 40.5 Pounds, Normal 30 Degrees Force 78.7 Pounds, Hard 10 Degrees Force 20.9 Pounds, Hard 20 Degrees Force 50.6 Pounds, Hard 30 Degrees Force 98.2 Pounds, 10 Degrees Normal Dimension S 0.67 Inch, 20 Degrees Normal Dimension S 1.34 Inches

Elastomeric Tensioners
  • Employ no metal-to-metal connections; no lubrication required. Withstand dirt and grime; can be used indoors or out. Mounting bolt and idler bolt included. 1L833, 1L834, and 1L835 include 5/8" bushing. Idler sprockets not included; for compatible sprockets see page 170.
  • 1-bolt mounting Temp. range: -40 to 180 F

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