BEARING FOR UMBILICUS OF A FLUID PROCESSING SYSTEM

A fluid circuit for use with a fluid processing assembly, the fluid circuit comprising an umbilicus having a first end, a second end, an axis of rotation, and a cross-sectional circumference; a one-piece bearing secured to the umbilicus at a location between the first and second ends, the bearing having an axis of rotation and including an inner lumen which directly engages the umbilicus and includes a plurality of traction features, which bear against the umbilicus to prevent relative rotation of the bearing and the umbilicus; and the plurality of traction features comprising a first traction feature configured to engage the umbilicus at a first set of lengths between the first and second ends and a second traction feature configured to engage the umbilicus at a second set of lengths between the first and second ends.