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⚙️ Elevate your projects with pulleys that pull their weight and then some!
The CNBTR 4-piece U-Type Black Pulley Wheel set features 30mm diameter wheels with an 8mm shaft hole, engineered with a smooth U-groove design to reduce friction. Each pulley supports up to 99kg, making them ideal for sliding windows, doors, and industrial machines. Constructed from durable engineering plastics and bearing steel, these pulleys offer reliable, versatile performance for professional-grade applications.







| ASIN | B07D8R9BGH |
| Bearing Number | 608ZZ |
| Bearing Type | Ball Bearing |
| Best Sellers Rank | #115,609 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #631 in Deep-Groove Ball Bearings |
| Bore Diameter | 8 Millimeters |
| Brand Name | CNBTR |
| Compatible Lubricant | Grease |
| Customer Reviews | 4.4 4.4 out of 5 stars (291) |
| Item Dimensions | 1.77 inches |
| Item Thickness | 10 Millimeters |
| Manufacturer | yqltd |
| Material Type | Engineering plastics + bearing steel |
| Model | M6180521109 |
| Outside Diameter | 30 Millimeters |
| Part Number | M6180521109 |
| Specification Met | ABEC 1 |
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