Pinion pitch question

[Gazzalene 171]

Ordered 4 pinions of various teeth count for a XV-01. When they come in the post they are different brands. The thing is 2 say 48DP and the other .6

I ordered all 48dp but the teeth do look to be the same. Do I need to return the .6 ones?  Are the TT-01 and TT-02 the same as the XV-01?

I have a beetle Blitzer and the pinion on that is very different, very coarse. 

Actually , how many modus  (?)  do Tamiya use,the manuals only give teeth count.

[ThunderDragonCy 7886]

They are different. It's the pitch of the teeth. 0.6 module is metric, roughly the number of teeth is 0.6 x diameter of the gear. The course pitch in your blitzer is 0.8 module, another metric size. Tamiya generally prefer metric. 48dp is an imperial size related to inches but i don't know how. It won't fit your xv01 un ess you change the spur gear to a matching 48dp tooth profile. So, you can use the 0.6 m d pinions on your xv01. Don't use the 48dp pinions with the stock spur gear. 

[Gazzalene 171]

So the 48dp need to be sent back!!   So the XV-01 is 0.6 ,are the TT-01/02 also 0.6?

[Jonathon Gillham 4607]

8 minutes ago, Gazzalene said:

So the 48dp need to be sent back!!   So the XV-01 is 0.6 ,are the TT-01/02 also 0.6?

The TT02 is definitely .6 and I'd expect the TT01 to be as well since every Tamiya I've had are mod gears, either .4, .6 or .8

[ThunderDragonCy 7886]

1 hour ago, Gazzalene said:

So the 48dp need to be sent back!!   So the XV-01 is 0.6 ,are the TT-01/02 also 0.6?

Yes, the TTs are 0.6 too

[Chesty44 3]

I’ve got a slipper clutch and it has a 48 pitch with 77 tooth spur gear. The Robinson racing gear I had been using with stock spur wasn’t working too well. I’ve just ordered a 48 pitch 32 tooth pinion. I must be on the right path.