T-Max Rotary and Linear Tensioners
Automatically Tension Motion Transfer Drives

Click to download
our catalog

Why Would You Need A Tensioner? (PDF)
Energy Savings with T-Max Tensioners (PDF)

To achieve optimum drive performance, correct drive belt or chain tension must be maintained. A self-adjusting T-Max tensioner from Fenner Drives is the solution. Available in both rotary and linear designs, T-Max automatic tensioners eliminate the need for regular manual retensioning of drives. The risk of inadvertently over-tensioning drive components is avoided and overall drive operating efficiency is enhanced.

All frictional V- and flat belt and roller chain drives elongate over time through use and wear. A properly designed and installed V-belt drive typically will offer an efficiency rating of 96%. Left unattended, the V-belt will elongate allowing slippage to occur. This generates heat which adversely affects belt life, accelerates pulley groove wear and can reduce drive efficiency by as much as 10%. In addition to energy waste, incorrect belt tension leads to increased drive downtime and higher operating costs, as well as inflated replacement costs due to premature belt failure.

Most of the above information also applies to roller chain drives, except that due to the more positive drive characteristics of chain, efficiency losses are approximately 3%.

Combined with a PowerMax Idler pulley or chain sprocket from Fenner Drives, an automatic T-Max tensioner can be used to:

• Maintain correct belt and chain drive tension
• Extend the life of critical drive components
• Reduce system downtime
• Increase drive efficiency
• Reduce belt and chain whip on long center drives
• Ensure drive components do not snag obstructions
• Reduce resonant frequency of chain drives