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🛠️ Elevate your mechanics with precision and power — don’t get left behind!
The Letool 4pcs U Type Groove Pulley set features 8x40x20mm nylon rollers with 608ZZ ball bearings, designed for smooth, silent operation and a robust 167kg load capacity. Perfect for driving mechanical equipment or upgrading door and window tracks, these durable pulleys combine high carbon steel strength with versatile industrial-grade performance.
| ASIN | B01M9G96S6 |
| Bearing Number | 608ZZ |
| Bearing Type | Ball Bearing |
| Brand Name | LYJEE |
| Compatible Lubricant | Grease |
| Customer Reviews | 4.5 4.5 out of 5 stars (471) |
| Item Thickness | 20.5 Millimeters |
| Item Weight | 26.3 Grams |
| Manufacturer | Letool International Ltd. |
| Material Type | High Carbon Steel |
| Outside Diameter | 40 Millimeters |
A**R
very sturdy, works well
These use standard 608 skate bearing and are rated for a lot of load. The bearing is not as frictionless as a fidget spinner, but it turns as easily as a skateboard or roller blade wheel does. I used these as support and guide rollers for a travelling rope system, like a scaled-down chairlift. I also looked at some larger diameter white pulleys, but those had a deeper grove with vertical sides, which prevents the rope hanger arm from passing through both vertical support pulleys and the horizontal main drive and idler wheels while keeping the same angle where the arm clamps on the rope.
L**S
Heavy duty.
Used for barn doors. Work great.
W**S
good fit but small bearing
these exactly fit high pressure (heavy duty hydraulic) 1/2 inch pipe, which has thicker walls than ordinary water pipe, and slightly smaller diameter. A heavier bearing would be nice maybe.
A**R
Excellent Quality
Working well on a sliding closet door.
Y**O
Very smooth.
These nylon wheels are turning very smooth. Because they are wide and use single bearing, you will need 8mm spacers to distance them from the surface of attached material. Perfect for my project.
D**N
Good little wheels
Very good little wheels. My drill press was slipping so I rigged this up.
P**W
Three Stars
The bearings are really low quality. They barely spin.
D**E
Just what I needed
I was looking for rollers to guide a power cord on a lamp fixture that was to be raised and lowered. These units had a nice deep groove and were easy to design into a bracket. The bearings operate smoothly and the overall construction seems of good quality.