The precisely designed bearing kit significantly reduces noise, providing a silent and smooth sliding experience each time. Specifically crafted for lasting stability, it is designed to achieve smooth and effortless door opening and closing.
Specification:
| Item No :JL-UD37.5M-NM | Product origin :China |
| Order(MOQ):Contact us | Shipping port :Guangzhou |
| Material :Iron+Nylon | Weight :25kg/55.11lbs |
| Lead time :30-45 days | Surface treatment :Zinc plated |
Product Introduction
This upper sliding guide rollers tailored for aluminum frame doors and various cabinet applications, designed to perfectly match 84mm wide profile tracks. Their advanced structural design ensures smooth, silent door operation with effective vibration dampening — delivering a durable, quiet sliding solution for modern interiors.

Constructed from high-strength, wear-resistant materials with anti-corrosion treatment and precision bearings, this roller system remains stable and reliable even under long-term, high-frequency use.
Rigorous life-cycle testing confirms its ability to withstand tens of thousands of sliding cycles without performance degradation
Other attributes
| Place Of Origin:Guangdong, China | Type:Sliding Door Roller |
| Brand Name:JUNAOBAO | Model Number:JL-UD37.5M-NM |
| Surface Color:Zinc Plated | Wheel Color:As shown in the figure |
| Suitable For:Bedroom, Kitchen, Living Room,etc | Application: Cabinet, Small Storage unit, etc |
| Load Capacity:25kg/55.11lbs | Service:OEM ODM |
| Material:Iron+Nylon | Door thinckness:> 15mm / 0.59inch |
| Packing:1 set/box, 50 boxes/carton | Life Test Times:SGS 50,000 cycles |
Sliding Door Application

Suitable for storage cabinets, bookcases and display cabinets. The lightweight nature of aluminum frame doors, combined with this roller system, ensures effortless sliding.
Whether in home bedrooms, retail display counters or warehouse storage rooms, this system delivers smooth, quiet performance.
Our roller system is built for exactly that: reliable construction and long-lasting performance, keeping aluminum frame doors sliding smoothly in any setting.

Aluminum frame doors demand higher precision from hardware systems. This roller system is tailored specifically for them: the top guide roller fits precisely into the top track groove, effectively eliminating door wobble, while the bottom roller carries the weight for smooth sliding even under frequent use.
In home settings, TV cabinet and bookcase doors glide quietly and effortlessly. In commercial environments — retail displays, hotel wardrobes, storage units — frequent use demands durable, reliable hardware.
Installation Drawing

Aluminum Profile
This aluminum profile boasts a precision‑machined cross‑section with 84 mm top width and 38 mm side height. It combines lightweight construction with outstanding load‑bearing capacity. Its specially designed track shape and flat surface are precisely calibrated to work seamlessly with different sliding roller systems. This enables effortless, smooth sliding, lowers vibration and component wear, and guarantees long‑term stable and quiet operation.
FAQ
· Why should I choose your factory over others?
—Our factory has 35 years of production experience with a mature production and operation system.
—We are equipped with automated production equipment and have an outstanding team composed of experienced staffs.
—We provide one-stop purchasing service covering sliding door roller, suspending door roller, side-hanging door roller, barn door roller, folding door roller, aluminum track, weather strip, bottom stopper and more.
This can greatly cut your purchasing and communication costs, while we guarantee premium products and thoughtful services for you.
· What are the quality advantages of your products?
Our core strengths lie in quiet and smooth sliding performance. We adopt premium raw materials and lean production processes. The products feature great wear, corrosion resistance and pass salt spray tests for long service life. Consistent quality is maintained across all production batches.
· Can I get samples before placing an order?
We support sample requests for testing. Samples can be provided as required and you only need to cover the shipping cost.
· How do you ensure every roller meets the same standard?
We have established a complete and strict quality control system with multi-layer inspections throughout the whole process:
—Incoming raw material inspection
—In-production patrol inspection
—Full inspection of finished goods
All products are traceable to comply with unified factory standards.
· Do you have ISO, CE or SGS certifications?
We have obtained ISO9001 quality management system certification and all our products have passed SGS testing.
· Can you customize products or packaging?
We support both OEM and ODM services.
—Product customization: We accept customized products. You need to send us samples or drawings for our technical department to verify production feasibility.
—Packaging customization: We offer logo printing, gift box design and carton design services.
· What is your lead time?
Goods will be shipped within 45 days after receiving your payment. We arrange production strictly as scheduled with scientific inventory and production schedule management. We can also quickly coordinate production for urgent orders.
· What after-sale do you offer?
We have a comprehensive after-sales system. We will respond promptly and provide proper solutions once any issues arise. Meanwhile, we offer long-term professional technical consultation for all cooperative clients.
· Which countries do you export to?
We have years of practical export experience and serve buyers worldwide. Our products sell well in American countries including the US, Mexico and Brazil; European countries such as Spain, Italy, Germany and Portugal; Asian countries including Japan, Singapore, Malaysia and India.
· Is your factory suitable for long-term stable cooperation?
We operate with integrity and aim to build long-term win-win partnerships with clients. We strictly honor all commitments, maintain efficient daily communication, continuously upgrade product quality and supporting services to be your reliable long-term supplier.
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