The Ball Bearings For The Ailerons and Flaps (3-H-279):
From Roger Mellema's newsletter #17: Robert Bollinger [...] reports that those of you who need the bearings for the aileron/flap torque tube assembly can get them for $ 13.91. The company is W. S. Wilson Corp in New York, 800-645-3714. Jeff Daugher is the person to talk to and the part number is B541DD. ' This company is generally wholesale but if you send an order and money, they will sell to you.