GT2 Timing Belt
These pages should be merged such that both pages do not attempt to cover the duplicate topics.
The GT2 timing belt is a possible replacement for T2.5 and T5 timing belts that some believe may cause backlash. The GT2 series of belts are designed specifically for linear motion. They use a rounded tooth profile that guarantees that the belt tooth fits smoothly and accurately in the pulley groove, so when you reverse the pulley direction, there is no room for the belt to move in the groove.
Vendors
Belts
Vendor | Loc. | Product | Width | Pitch | Length | Additional notes |
---|---|---|---|---|---|---|
3DCracker | CN | GT2 Belt | 6 mm | 2.00 mm | Open ended and closed-loop | |
3Distributed | UK | Prusa Kit | 6 mm | 2.00 mm | 1000 mm | |
3DMakerWorld | US | Belt | 6 mm | 2.00 mm | 1164 mm | |
B&B Manufacturing | US | Belt | 3 mm | 2.00 mm | 54-1910 mm | |
B&B Manufacturing | US | Belt | 6 mm | 2.00 mm | 54-1910 mm | |
B&B Manufacturing | US | Belt | 9 mm | 2.00 mm | 54-1910 mm | |
Beltingonline | UK | Separate Belt at 900mm length | 6 mm | 2.00 mm | 900 mm | Genuine Gates/Unitta GT2 belting. |
Beltingonline | UK | Separate Belt at 976mm length | 6 mm | 2.00 mm | 976 mm | Genuine Gates/Unitta GT2 belting. |
Beltingonline | UK | Separate Belt at 1032mm length | 6 mm | 2.00 mm | 1032 mm | Genuine Gates/Unitta GT2 belting. |
Beltingonline | UK | Separate Belt at 1164mm length | 6 mm | 2.00 mm | 1164 mm | Genuine Gates/Unitta GT2 belting. |
Beltingonline | UK | Separate Belt at 1386mm length | 6 mm | 2.00 mm | 1386 mm | Genuine Gates/Unitta GT2 belting. |
Beltingonline | UK | Separate Belt at 1524mm length | 6 mm | 2.00 mm | 1524 mm | Genuine Gates/Unitta GT2 belting. |
Beltingonline | UK | Universal Kit for RepRap/Other 3D Printers | 6 mm | 2.00 mm | 1032 & 1164 mm | Genuine Gates/Unitta GT2 belting & UK Manufactured Pulleys |
Beltingonline | UK | Kit for RepRap Prusa | 6 mm | 2.00 mm | 900 mm | Genuine Gates/Unitta GT2 belting & UK Manufactured Pulleys |
Beltingonline | UK | Kit for Rostock Delta Robot | 6 mm | 2.00 mm | 1524 mm | Genuine Gates/Unitta GT2 belting & UK Manufactured Pulleys |
Beltingonline | UK | Kit for Rostock Mini | 6 mm | 2.00 mm | 1032 mm | Genuine Gates/Unitta GT2 belting & UK Manufactured Pulleys |
Charlie's 3D Technologies | BE | Belt | 6 mm | 2.03 mm | 1000 mm | |
Cubic-Print | DE | GT2 Belt kit | 6 mm | 2.00 mm | cut to length | |
eBay: fabster3d | CN | Belt | 6 mm | 974-1164 mm | ||
eBay: yellowvirtualsales | US | Precision GT2 Belt | 6 mm | 2.00 mm | Cut To Length | |
EmotionTech | FR | Belt | 6 mm | 2.00 mm | 850 mm | |
Fabberworld | CH | Belt | 6 mm | 2.00 mm | 1000+ mm | |
Gadgets 3D | PL | Kit for RepRap Prusa 2 | 6 mm | 976 mm x 3 | ||
Gadgets 3D | PL | Kit for Rostock Mini | 6 mm | 900 mm x 3 | ||
Makemendel | IN | GT2 Belt | 7 mm | 2.00 mm | 660 mm | |
Misumi | US | 2GT Belt | 4 mm | 2.00 mm | 662-9942 mm | |
Misumi | US | 2GT Belt | 6 mm | 2.00 mm | 662-9942 mm | |
Misumi | US | 2GT Belt | 9 mm | 2.00 mm | 662-9942 mm | |
ReprapWorld.com | EU | [1] | 6 mm | 2.00 mm | 1000-75000 mm | |
RobotDigg | CN | 202mm Closed-loop GT2 Belt | 6 mm | 2.00 mm | 202 mm | |
RobotDigg | CN | 760mm Closed-loop GT2 Belt | 6 mm | 2.00 mm | 760 mm | |
RobotDigg | CN | GT2 Belt Open Ended | 6 mm | 2.00 mm | 1000-50000 mm | |
RobotDigg | CN | MXL Belt | 6 mm | 2.00 mm | 1000-50000 mm | |
RoyalSupply | US | Belt | 6 mm | 2.00 mm | 1164 mm | |
TechPaladin Printing | US | Belt | 6 mm | 2.00 mm | 1380 mm | |
Thingibox | ES | GT2 Belt | 5 mm | 2.00 mm | any | Worldwide shipping |
Ultibots | US | Belt | 6 mm | 2.00 mm | 1164 mm |
Pulleys
Vendor | Loc. | Product | Material | Belt width | Bore | Tooth | Flange | Additional notes |
---|---|---|---|---|---|---|---|---|
3DCracker | CN | GT2 Pulley | 7 mm | 5, 8mm | 16, 20, 36 | double | ||
eBay: Yellowvirtualsales | US | Timing Pulleys | Aluminum, Metal | 6mm - 10mm | 5.00 mm | 12-36 | Vary | |
3Distributed | UK | Pulley | 7 mm | 5.00 mm | 20 | double | ||
3Distributed | UK | Kit | 7 mm | 5.00 mm | 20 | double | ||
3DMakerWorld | US | Pulley | Polycarbonate, fiberglass, brass | 6 mm | 5.00 mm | 36 | double | |
B&B Manufacturing | US | Pulley | Aluminium | 3 mm | 5.00 mm | 12-20 | double | |
B&B Manufacturing | US | Pulley | Aluminium | 6 mm | 5.00 mm | 12-20 | double | |
B&B Manufacturing | US | Pulley | Aluminium | 9 mm | 5.00 mm | 12-20 | double | |
Beltingonline | UK | Separate Timing Pulley (sold each) | Aluminium | 6 mm | 5.00 mm | 20 | double | UK Manufactured Precision Pulley |
Beltingonline | UK | Universal Kit for RepRap/Other 3D Printers | Aluminium | 5.00 mm | 20 | double | Genuine Gates/Unitta GT2 belting & UK Manufactured Pulleys | |
Beltingonline | UK | Kit for RepRap Prusa | Aluminium | 5.00 mm | 20 | double | Genuine Gates/Unitta GT2 belting & UK Manufactured Pulleys | |
Beltingonline | UK | Kit for Rostock Delta Robot | Aluminium | 5.00 mm | 20 | double | Genuine Gates/Unitta GT2 belting & UK Manufactured Pulleys | |
Beltingonline | UK | Kit for Rostock Mini | Aluminium | 5.00 mm | 20 | double | Genuine Gates/Unitta GT2 belting & UK Manufactured Pulleys | |
Charlie's 3D Technologies | BE | Pulley | Aluminium, nylon | 7 mm | 5.00 mm | 20 | double | |
Charlie's 3D Technologies | BE | Pulley | Aluminium | 7 mm | 5.00 mm | 20 | double | |
Cubic-Print | DE | Pulley / Kit | Aluminium | 7 mm | 5.00 mm | 20 | double | |
eBay: fabster3d | CN | Pulley | Aluminium (black) | 7 mm | 5.00 mm | 20 | double | |
EmotionTech | FR | Pulley | Aluminium | 6 mm | 5.00 mm | 20 | double | |
Fabberworld | CH | Pulley | Aluminium | 6 mm | 5.00 mm | 20 | double | |
Gadgets 3D | PL | Kit for RepRap Prusa 2 | Aluminium (black) | 6 mm | 5.00 mm | 20 | double | |
Gadgets 3D | PL | Kit for Rostock Mini | Aluminium (black) | 6 mm | 5.00 mm | 20 | double | |
Makemendel | IN | GT2 Pulley | Aluminium | 7 mm | 5.00 mm | 20 | - | |
Misumi | US | 2GT Pulley | Aluminium | 4 mm | 5.00 mm | 32 | double | |
Misumi | US | 2GT Pulley | Aluminium | 6 mm | 5.00 mm | 32 | double | |
Misumi | US | 2GT Pulley | Aluminium | 9 mm | 5.00 mm | 32 | double | |
ReprapWorld.com | EU | Multiple types of Pulley | Aluminium | 5-6 mm | 5mm | Multiple | double | |
Robotdigg | CN | 16Teeth 2GT Pulley | Aluminium | 7 mm | 5mm, 8mm | 16 | double | |
Robotdigg | CN | GT2 Pulley | Aluminium | 7 mm | 5mm, 8mm | 20 | double | |
Robotdigg | CN | GT2 Pulley | Aluminium | 7 mm | 5mm | 36 | double | |
RoyalSupply | US | Pulley | Aluminium | 4-6 mm | 4.76 mm | 18 | double | You'll need to redrill them to fit on the usual 5mm motor shaft |
Stock Drive Products | US | Pulley | 5.00 mm | 36 | ||||
Stock Drive Products | US | Pulley | 5.00 mm | 40 | ||||
Stock Drive Products | US | Pulley | 5.00 mm | 42 | ||||
TechPaladin Printing | US | Pulley | Aluminium | 6 mm | 5.00 mm | 20 | double | |
Thingibox | ES | GT2 Pulley | Aluminium | 4-6 mm | 5.00 mm | 16 | double | Length: 7mm; Worldwide shipping |
Ultibots | US | Pulley | Aluminium | 6 mm | 5.00 mm | 20 | double | |
UltiMachine | US | Pulley | Aluminium | 6 mm | 5.00 mm | 20 | double |
Stock Drive Products
In the US, the best source is SDP/SI. They sell a huge variety of belts and pulleys that meet our needs. Always call SDP/SI for stock, their website is always out of date.
- Pulleys (bad link)
Filter for GT2, 2mm pitch, then choose the bore size needed for your steppers. - Belts (bad link)
Filter on GT2, 2mm Pitch, and get 2 belts as close to 1m long as possible. - Misumi's pulley introduction
Note, unfortunately, SDP/SI does not carry a smaller diameter GT2 pulley with a 5mm bore, so to buy your pulleys here you need a larger pulley than in strictly ideal. These are fine, though. I use the 36 tooth pulleys on my printer and they work great.
RobotDigg
China manufacturer base MXL pulley, GT2 pulley supplier. MXL belt and GT2 belt in different width, open ended or closed-loop. MXL pulley 18 teeth 5mm bore and mxl belt from stock for quick response. GT2 pulley 20 teeth 5mm bore and 8mm bore from stock. GT2 pulley 36 teeth 5mm bore from stock, can be redrill to 6.35mm or 8mm bore to fix.
- MXL
MXL pulley 18 teeth, 5mm bore - 2GT
GT2 pulley 20 teeth, 5mm bore - 2GT
GT2 pulley 20 teeth, 8mm bore - 2GT
GT2 pulley 36 teeth, 8mm bore
More pulleys available. OEM service for small quantity a 100pcs base.
Misumi
Another good source for GT2 pulleys and belts is Misumi. They carry a huge variety of suitable pulleys, including several that are closer to out ideal diameter. In addition, Misumi has offices around the globe so they are a better choice for international customers (though some regions will only sell to businesses).
Their website does not make it easy to browse for belts and pulleys, but here are the relevent pages in their catalog:
Note: Misumi calls theirs 2GT (2mm pitch) and 3GT (3mm pitch). As far as I know they are compatible with GT2, but both offer the same benefits. Misumi's pulleys seem expensive, but they are metal pulleys. We don't really need metal pulleys for our needs, but they are fine.