Patio slider rollers/Balasts

I need two sets of rollers and a track cap. What I have is almost identical to the generic tandem rollers sold at every hardware store, including Home Depot. The exceptions are 1) the rollers I have are 1" OD and theirs are all 1-1/8" and 2) the tang/tab on mine has a hole through it and theirs have a "U" shaped cut.

My concern with the shape of the tang opening is that the unit would drop down even when the wheels are adjusted up to allow slipping the door in and out of the track. (The particular door was improperly installed so that it is impossible to remover the fixed outside door. Attached are photos of the wheel assemblies that are on it.

I also need some window channel balances and am not sure of the top and bottom pieces. Stamped on the channel is "2130AA". As the picture limit has been filled on this, I will send photos of the channel balast on a follow up E-mail.

Thanks.

Richard