February 2010 PFFC

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Differential Rewinding: Part Three

This month we continue our diagnosis of differential rewinding. The last two columns reviewed the whys and hows of differential rewinding, but before filling your prescription for two new differential shafts, let's review potential detrimental side effects. Unknown Tension Differential rewinding is a torque-based system, changing current, overspeed, or air pressure to vary the torque and — through the roll's radius — winding tension. One repeated theme in this column is measure your tension. A tension-sensing roller, whether used for control or measurement only, will ensure you get the right tension or know when you don't. If ...

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