Spline Shaft for 2" Steel Roll Tube - Yellow Zinc

The spline shaft, or spline cartridge, connects the U-joint to the side roll tube on a manual side roll tarp system. The rear crank handle rotates the U-joint, which is mounted onto the spline, which is welded to the roll tube. This enables the effective transfer of rotational force from the hand crank to the roll tube. The splines (grooves) on the shaft interlock with the splines of the U-joint to ensure a secure connection, allowing the tarp to be rolled smoothly from side to side.

Side Roll Tube Spline Instructions

• Insert spline into rear of tube.
• Hold straight and weld all around, using care to avoid weld splatter and damage to the tarp and trailer.
• Weld several short beads, let cool and finish with fill welds between them.
• Let cool and grind weld smooth.
• For rust prevention, apply rust resistant paint to exposed metal surfaces.

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