Rotatable wet spline pump flanges for PTOs

  • 03-May-2010 08:43 EDT
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Chelsea, a division of Parker Hannifin, designs the rotatable Wet Spline for the 277 and 278 series Power Take-Offs (PTOs). The ability to index the output flange of the PTO 360° provides the capability to maximize pump clearance between the transmission and vehicle frame rails where space is typically at a premium. The torsional vibrations from today’s diesel engines prematurely wear out the mating shafts between the PTO and pump. The Wet Spline output option helps to provide extended shaft life, claims the company. Chelsea is the first PTO manufacturer to combine both of these features in one option to provide maximum life and clearance for PTO and pump combinations, according to the company.

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