+1,


Unless you know, stick to original replacements because subtle differences in angles or fit tolerances might exist.

BTW- often bearings that appear rusty externally are actually OK. Spin the bearings in your hand, or look for signs of rust in the grease. If they feel smooth, and the grease isn't rust stained they're probably OK. Use mild acid and elbow grease to glen up the outside, then soak in mineral spirits or another petroleum solvent to flush the grease, then shake dry and wait for it to dry completely. Then force fresh grease in with the point of a grease gun while slowly turning the bearing until it's filled, and you're good to go.