Change part dimension before importing into assembly

[oudy_1999]

I'm a little new to Inventor so please bear with me.

I wanted to be able to model a part (a bearing for example) using parametric modelling. Later, when importing to an assembly, I would like to get the option to set some dimensions (Inner diameter, outer diameter, etc.). I've managed to accomplish this using iForms and rules. However, when I add multiple copies of the same part to an assembly and change the dimensions on one, all other bearings change aswell. How can I make each bearing have a unique size but only use a base design/part?

Thanks

[JDMather · Accepted solution]

Research iParts,

but in this case you should probably also look into the Bearing Generator Design Accelerator (Design tab in assembly).