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Product Name: GT2 H Type Idler Timing Pulley
Type: Smooth without Teeth
Material: Aluminum Alloy
Color: Black
Teeth Number: 20
Inner Bore: 5mm
Fit for: GT2 6mm Width Timing Belt
In daily life, it is widely used in automobile, textile, printing and packaging equipment, sewing equipment, office equipment, laser engraving equipment, tobacco, financial machinery, stage lighting, communication food machinery, medical machinery, steel machinery, petrochemical, instrumentation, precision machine tools and other fields.
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2pcs GT2 20 Teeth 5mm Bore Idler Timing Pulley (Smooth without teeth)
Andrew Hong
2025-09-04 11:29:09
Works just fine, no obvious quality defects. It is slightly skinnier than the stock Prusa idler, which gives it some adjustment room to align the belt. It's also a narrower track where the belt sits. Double bearing, so it doesn't wobble at all. Good for the money, but not exactly worth it 100% over the stock Prusa idler unless it's to replace a damaged one.
James R.
2025-08-17 19:26:49
These appear to be good bearings and they spin freely. So far they have had just under 100 hours of run time on my printer and are showing no signs of problems.
Archduke Ferdinand
2025-08-11 16:51:03
They fit my GT2 perfectly and I didn’t have to resize my mounts, so they advertised it right. However, the bearings are a little gravelly. I had to give them a quick soak in oil before installing. Aside from that, I’m happy.
Derek G
2025-07-14 11:38:58
This is an excellent pulley. It can be used as a drop in replacement for Prusa's. I argue it may actually be better than stock as it has 2 bearings in the middle vs Prusa's 1. It uses the same bearing so it is much higher quality than most of the small knock off pulleys on amazon.
VAPVAP
2025-06-12 10:36:01
- I ordered something different from what I received- one thing was defective, bearing was missingI sent it back.
A. Chase
2025-05-07 11:11:09
Works an the prusa mk3 front idler pulley for the y axis. So quiet. The old one was clicking like crazy. This one is smooth. It is also different than the other sold on amazon which get mixed reviews. But one print and awesome . But the axis is not indented like the standard prusa one. But seems to work ok. Shipping from chech republic would have killed me.
R. Ross
2025-03-10 16:03:33
Good quality part.
Ashley Durbin
2025-02-20 16:38:31
Built a homemade cnc with these and they worked great!
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