1/2" Hex Shaft Bevel Gears

[TheHolyHades1]

Originally Posted by dmorewood

I'm prepared to spend 500-800 dollars on the swerve modules. I found a 1/2 Inch Hex Broach on McMaster. Any suggestions for a good bevel gear to broach?

You might want to see if it's possible to increase your budget. I've BOM'd a few swerve designs of mine, as well as looked at a few from teams like 1640 (who provide excellent resources in their swerve central), and I wasn't able to make the cost go under about $200 for each module. You'll also want to take into account manufacturing expenses, which can either be nearly free (tooling) or very expensive depending on how much outsourcing you're doing, and how much that'll cost you. Also, don't forget to budget for an extra module or two as things are likely to break ...

[Dale]

I would recommend going with gears from Martin Sprocket and Gear over those from Boston Gear. The Martin gears are case hardened and will wear better with heavy use. You can find their catalog here http://www.martinsprocket.com/docs/d....pdf?sfvrsn=14 and look up the part numbers at any number of suppliers to find the gears to buy.

I'd worry that case hardened gears would be hard to broach, however. Some teams have used non-hardened gears and then hardened them themselves afterwards.

[JesseK]

Originally Posted by TheHolyHades1

You might want to see if it's possible to increase your budget. I've BOM'd a few swerve designs of mine, as well as looked at a few from teams like 1640 (who provide excellent resources in their swerve central), and I wasn't able to make the cost go under about $200 for each module. You'll also want to take into account manufacturing expenses, which can either be nearly free (tooling) or very expensive depending on how much outsourcing you're doing, and how much that'll cost you. Also, don't forget to budget for an extra module or two as things are likely to break ...

Assuming there are 4 modules!

This is a go-kart which presumably won't get into a pushing match. Seems perfect for a 3-pod design, and eliminates the need for a perfect frame/suspension setup.