Fenner Drives FS0071

Fenner Drives

Self-Adjusting Tensioner, 40 ANSI Chain

FS0071 534977
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ItemSelf-adjusting tensioner
ANSI Chain Size40
Idler Outside Dia.2.98"
Mounting Hole (In.)0.40"
Temp. Range (F)32-225
Force Range (Lbs.)0-30
Tensioning ArmDeflects Up To 45 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
InsertAlloy Steel, Accurately Wound Compression Springs Are Used To Provide Consistent Tensioning Force
FunctionSelf-Adjusting Tensioner Eliminates Need For Regular Manual Retensioing
Application Chain Drives
Dimension A (In.)1.67
Dimension B (In.)0.28
Dimension C (In.)0.84
Dimension D (In.)2.76
Dimension E (In.)6.37
Dimension G (In.)0.41
Dimension T (In.)1.17
Weight 1.200000


Self-adjusting tensioner, 40 ANSI Chain Size, Mounting Hole 0.40 In In, Temp Range 32-225 F, Force Range 0-30 Lbs

Self-Adjusting V-Belt and Chain Tensioners
  • Maintain correct tension on belt and chain drives without requiring manual retensioning. Reduce resonant frequency of chain drives. 2ZRT8, 2ZRU1, 2ZRU2, and 16A169 feature accurately wound compression springs for constant tensioning force. 16A170, 2ZRT9, 2ZRU3, and 2ZRU4 feature reversible torsional wrapped spring for bidirectional use.
  • Tensioning arm deflects up to 45 either side of neutral for wound springs; 70 for torsional wrapped springs Alloy steel springs Mounting bracket is compatible with NEMA 48, 56, and 143T designs

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