This is the Needle Bearing for the DL-20 Engine. The Needle Bearing installs on the connecting rod at the piston end.
Constructed of hardened steel
One Needle a.k.a. Roller Bearing
Installation on the connecting rod at the piston end
Outer Diameter: 0.43" (11mm)
Inner Diameter: 0.32" (8mm)
Length: 0.39" (10mm)