Df-03 Pinion Gear / Spur Gear

[tomjkear]

Hi,

How do I find differently toothed pinion and spur gears that will fit a DF-03?

I can see that there are many to choose from but I don't know what will fit the car.

Can anyone suggest a suitable 23t pinion to show me as an example?

Thanks,

TK

[terry.sc]

You need 0.5 module pinions and gears for the DF-03.

Pinions

23 and 25 tooth pinions Tamiya part number 53922

27 and 29 tooth pinions Tamiya part number 53923

Spur gears

DF03 spur gear set Tamiya part number 51248

[europro975]

You need 0.5 module pinions and gears for the DF-03.

Pinions

23 and 25 tooth pinions Tamiya part number 53922

27 and 29 tooth pinions Tamiya part number 53923

Spur gears

DF03 spur gear set Tamiya part number 51248

Earlier Super Astute pinions will also work:

http://search.stores.ebay.co.uk/Tonys-Tami...eZ0Q2e5QQsofpZ0

Antony

[tomjkear]

Thanks guys.

I was sold spare part number 50357 at my local shop and the guy said that all pinion gears are the same.

Is this right? Am I ok to go ahead and use this with the DF-03 or is there a difference?

The packaging simply says "Usable with: Electric R/C Cars"

Thanks,

TK

[Danbox]

All pinion gears are NOT the same. The pitch has to be correct. I'd stick with the ones mentioned in the previous posts.

[DuaneB]

Hi,

Sorry to drag up an old thread, but this has some useful information relevant to my question.

The DF03 kit comes with two spur gears in different pitches. The smaller one seems to be standard tamiya pitch, the other is .05 pitch.

I have badly worn the standard tamiya pitch pinion and spur and want to reduce my ratios anyway so would like to use the .05 pitch spur, but I cant find much of a selection of 05 pitch pinions, are they also know under another name ?

Otherwise I suppose I can use any pinion matching pinion/spur combination as they dont mesh directly with any other part of the drive train. Is there a way to calculate the diameter of a cog based on the pitch or module and the number of teeth so I can choose something that will fit the DF03 ?

Thanks

Duane.

[DuaneB]

Replying to myself again, got to stop this.

From the table at the bottom of this page, it looks to me like 64 pitch is near as **** it .05 module, can I get using these together ?

http://www.engineersedge.com/gear_pitch_chart.htm

[terry.sc]

The DF03 kit comes with 2 spurs, both are 0.5module. 'Standard' Tamiya gear pitch is the bigger 0.6 module and the kit supplied pinion is 0.5 module.

The only 0.5 module pinions I know of are the Tamiya ones, part numbers are listed in the first reply above.

I presume by 'standard pitch' you mean the 48dp gears commonly used by other companies, which will roughly mesh with 0.5 module gears if necessary, but it makes a lot of noise and soon destroys the gears as the tooth shape is different. The only Tamiyas that use 48dp gears are their hgih end race chassis.

64dp gears are roughly equivalent to 0.4 module, but they don't mesh together either.

If you want to try different spurs you would be looking for 48dp spurs the same tooth count as the 0.5 module kit ones, so 78-85 tooth spur gears. Due to the design of the DF03 spur mounting you aren't going to find a gear that bolts on. You will need to fit the slipper clutch on there first which would then enable you to use associated B4 spur gears if you drill out the centre hole in the gear to 5mm.

Alternatively find someone with a lathe who can make up an adapter that you can bolt standard spur gears on to the DF03 layshaft.

[TA-Mark]

Just to add to Terry's post, there has been a few more pinions released.

#53801 Tamiya 20/21T 0.5 Steel Pinion Gear

#53802 Tamiya 22/23T 0.5 Steel Pinion Gear

Ideal for a ~4500kv brushless is 23T pinion/82T spur

The 20T, 21T and 22T fit with the 85T spur only. The slipper cover will not fit and rubs when the 85T spur is fitted.

78T and 85T 0.5mm spurs come in the DF03 kit and the 82T 0.5mm spur is part of the slipper clutch set. It's better to grab the whole slipper clutch if upgrading a stock DF03 to run brushless or very low turn brushed (MS kit includes all 3 spurs and the slipper).

There's really no need to go to a 48dp set now that Tamiya have the right gearing options for us. 20T/85T will get it low enough for just about anything, and 29T/78T tall enough for the torquey low rpm motors at the other end of the scale.

[DuaneB]

Thanks all,

I currently have the 26:78 fitted, but will try 26:85 next as I already have it, I run the car on very uneven and very fine sand and wanted to gear it down for more torque and cooler running.

Thanks

Duane.

[Origineelreclamebord]

The DF03 kit comes with 2 spurs, both are 0.5module. 'Standard' Tamiya gear pitch is the bigger 0.6 module and the kit supplied pinion is 0.5 module.

The only 0.5 module pinions I know of are the Tamiya ones, part numbers are listed in the first reply above.

I presume by 'standard pitch' you mean the 48dp gears commonly used by other companies, which will roughly mesh with 0.5 module gears if necessary, but it makes a lot of noise and soon destroys the gears as the tooth shape is different. The only Tamiyas that use 48dp gears are their hgih end race chassis.

64dp gears are roughly equivalent to 0.4 module, but they don't mesh together either.

If you want to try different spurs you would be looking for 48dp spurs the same tooth count as the 0.5 module kit ones, so 78-85 tooth spur gears. Due to the design of the DF03 spur mounting you aren't going to find a gear that bolts on. You will need to fit the slipper clutch on there first which would then enable you to use associated B4 spur gears if you drill out the centre hole in the gear to 5mm.

Alternatively find someone with a lathe who can make up an adapter that you can bolt standard spur gears on to the DF03 layshaft.

Is there no easier way to get a more common pitch/module gears on these cars? It sounds rather complicated...

[TA-Mark]

Is there no easier way to get a more common pitch/module gears on these cars? It sounds rather complicated...

If you buy the kit, and a slipper clutch you have all 3 spurs (DF-03 MS has all 3 in the kit). There are 4 sets of optional pinions (9 total including the kit 26T), all from Tamiya. With these combinations there is no need to make parts or try for an eccentric 48dp spur gear (what usually happens when you try to drill the centre hole out). You can get ratios to suit any motor with Tamiya optional parts.

26T/78T you would only run with the kit silvercan and can be considered the base gearing for 27T motors. Going to a 25T pinion on the same 78T spur will give slightly more torque on the same motor. 26T/85T will not fit, the motor does not slide that far! Running in fine sand you want the gear cover on so the 85T spur you will never use.

[europro975]

Hi,

How do I find differently toothed pinion and spur gears that will fit a DF-03?

I can see that there are many to choose from but I don't know what will fit the car.

Can anyone suggest a suitable 23t pinion to show me as an example?

Thanks,

TK

Tamiya 0.5 Module 23T pinion:

http://cgi.ebay.co.uk/Tamiya-53082-0-5-Ste...A1%7C240%3A1318

Antony

[terry.sc]

Is there no easier way to get a more common pitch/module gears on these cars? It sounds rather complicated...

The 'standard' spur gears have a 3/8" hole and are designed to be bolted to drive hub. The DF03 has a 5mm axle with pin drive. If you want to adapt the DF03 you can start with a TA04 spur gear mount in plastic or ideally alloy. Drill the 4mm hole in it out to 5mm to fit on the DF03 layshaft, lengthen the pin slot to fit the longer DF03 drive pin, then cut the length of the adapter down until the nut can tighten on to the end of the layshaft.

The B4 slipper spur gear is rapidly becoming the new industry standard, a lot of competition chassis are working to the same dimensions for their slipper clutches and modifying a B4 spur gear to fit the Tamiya slipper clutch is pretty simple. Or you can contact RW Racing as they make DF03 layshafts to order to fit an Associated slipper clutch.