These are the bearing in the boom block for the listed compatibly Align 700 helicopters. The two bearings I buy it for are the TT front drive gear vertical bearings.
They have another package including both large bearings also. Amain commonly has everything I need down the last bearing. Another thing is the bearings never come brown/grungy from sitting on the shelf for years. Anything old they blow it out either online or the yearly swap meet type lot sales they do. Amain is great!