Belden Universal: Upgraded pick-and-place universal joints

Belden Universal upgraded to its universal joints for pick and place (Delta) robots. The redesign project was necessitated by industry demand for space-saving components supporting heavier payloads.

Pick-and-place universal joint
Pick-and-place universal joint

The stainless-steel component is based on Belden’s unique hybrid design, combining the higher torque capacity of a pin + block joint with the needle bearing's ability to continuously operate at high speeds with low friction. It mitigates corrosion issues, contamination, burnout, and joint seizure.

The redesign project concentrated on the joint’s center section. It utilizes stronger, precision needle-roller bearings with larger outside diameters, making it capable of supporting applications with larger payloads and higher torque requirements. Torsional backlash was minimized according to stringent specifications. Modifications to the yoke’s ear profile resulted in a higher, 55° angle, further supporting precise positioning and orientation of the robotic arms. With an overall length of just 48mm, the new universal joint delivers a compact, space-saving design at high strength, speed and flexibility.

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