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Home » Categories » Pulleys, Belts & Bearings

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FingerTech S3M Timing Belt
FingerTech S3M Timing Belt
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Timing pulleys and belts are the best way to transmit power from your motor to drive wheels or a spinning weapon.
While O-Rings and round belts will slip under tension, timing belts have teeth that ensure a positive lock to the pulleys.

A range of thirty-two belt sizes allows you to design your robot then pick a belt, rather than the other way around!
Use with our selection of FingerTech S3M pulleys, or any other 3mm pitch pulley.

Try our Pulley-Belt Distance Calculator!  Pick from our available pulley and belt sizes and it will tell you how far apart they will be, OR plug in your desired distance and it will tell you which belt to use!

Pitch (distance between tooth centers): 3mm
Width: 4mm
Material: Chloroprene Rubber with Fiberglass reinforcement
Tensile strength: 19-25MPa
Max load: 360 Newtons
Weight (smallest to largest): 1 - 4g (0.04 - 0.14oz)

Circumference, # of Teeth:
120mm, 40T
129mm, 43T
144mm, 48T
150mm, 50T
165mm, 55T
171mm, 57T
177mm, 59T
180mm, 60T
189mm, 63T
192mm, 64T
195mm, 65T
201mm, 67T
207mm, 69T
210mm, 70T
222mm, 74T
231mm, 77T
246mm, 82T
255mm, 85T
264mm, 88T
276mm, 92T
288mm, 96T
300mm, 100T
312mm, 104T
321mm, 107T
339mm, 113T
375mm, 125T
378mm, 126T
384mm, 128T
390mm, 130T
396mm, 132T
402mm, 134T
408mm, 136T
 
13 Product Reviews - Average rating 4.9 / 5 (Show All)

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Excellent belts at a great price

- 11th February 2018

I put far more power through these then an average 3lb beater (0 to 25k rpm in less then a second) and they wear in a bit, but not enough to ever skip, and have never had one fail. I've bent high grade shafting in weapon motors with no damage done to the belt (even when running with a bent motor shaft in a 0 flex frame).

If your bot weighs 3lbs or less use these

- 11th February 2018

Easiest to use, best form factor belt for insect combat robots. If you build something that can make one of these skip when new and with proper tension, your bot is probably not actually less than 3 pounds.

Great price for a great product

- 16th September 2016

Great belts at great prices. 4mm width is perfect for antweights and probably beetleweight. I'd recommend this over the more common 6mm belts

Very durable!

- 09th January 2016

These timing belts worked great for me, spinning a pulley-powered horizontal spinner, spinning the bar at a tip speed of 160mph, it has lasted me through a bunch of testing versus cinder blocks, wood logs, etc. I got a spare belt, but I doubt i'll need it!

Excellent product

- 13th August 2015

Good selection of sizes, very durable, haven't broken one yet!

Great value

- 24th February 2015

Great servive

Click to review this product

FingerTech S3M Timing PulleyFingerTech S3M Timing Pulley - 5.86 CAD

Our specialty Timing Pulleys and Belts are the perfect solution for transmitting power from motors to wheels or shafts.
While O-Rings and round belts will slip under tension, timing belts have teeth that ensure a positive lock to the pulleys.

Ten pulley sizes means there are 55 different ratio combinations to choose from!
Use with FingerTech Timing Belts, or any other 3mm pitch belt.
• S3M pitch (3mm high-torque)
• Belt Width (maximum): 4mm
• Sizes: 9 Teeth - 42 Teeth
• Bore: 3mm (9T, 15T and 16T can be drilled up to 5/32", larger pulleys can be drilled up to 1/4")
 
Price: 5.79 CAD
4.38 USD 3.75 EUR
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