Các NN3020 Double Row Cylindrical Roller Bearing is a high-capacity precision bearing designed for applications requiring extremely high radial load capacity and excellent rigidity. Its double-row structure significantly increases load performance while maintaining stable operation under heavy-duty conditions.
Unlike single-row bearings, the NN type features a non-locating design that allows axial displacement, making it ideal for systems where thermal expansion must be accommodated. This ensures smooth operation and reduced internal stress during continuous industrial use.
Manufactured from high-quality chrome steel and available in stainless steel or special material options, the NN3020 bearing delivers long service life, low friction, and high reliability in demanding environments such as steel production, mining, and heavy machinery.
Tính năng chính
- Double row cylindrical roller design for ultra-high radial load capacity
- High rigidity and stable performance under heavy loads
- Non-locating structure allows axial displacement
- Ma sát thấp và hoạt động mượt mà
- Suitable for high-speed and heavy-duty applications
- Excellent durability and long service life
- Optional stainless steel and custom material versions
Thông số kỹ thuật
| Tham số | Giá trị |
|---|---|
| Mô hình vòng bi | NN3020 |
| Đường kính trong (d) | 100 mm |
| Đường kính ngoài (D) | 150 mm |
| Chiều rộng (B) | 37 mm |
| Loại vòng bi | Double Row Cylindrical Roller Bearing (NN Type) |
| Vật liệu | Thép mạ crôm / Thép không gỉ |
| Vật liệu lồng | Thép / Đồng thau |
| Bôi trơn | Mỡ / Dầu |
| Đánh giá độ chính xác | P0 / P6 / P5 |
| Nhiệt độ hoạt động | -20°C đến 120°C |
Ứng dụng
The NN3020 double row cylindrical roller bearing is widely used in:
- Steel rolling mills
- Heavy-duty industrial gearboxes
- Mining machinery
- Thiết bị xây dựng
- Large electric motors
- Paper and textile machinery
- Industrial transmission systems
Tại sao chọn chúng tôi
- Khả năng mạnh mẽ trong sản xuất vòng bi chịu tải nặng
- OEM and custom engineering support available
- Advanced production and heat treatment technology
- Hệ thống kiểm tra và thử nghiệm chất lượng nghiêm ngặt
- Fast global delivery and stable supply
Câu hỏi thường gặp
Q1: What is the advantage of double row cylindrical roller bearings?
A: They provide significantly higher radial load capacity and improved rigidity compared to single-row designs.
Q2: What is the difference between NN and NNU types?
A: NN type allows axial displacement of the shaft, while NNU type allows axial displacement of the housing.
Q3: Can NN3020 be used in heavy industrial applications?
A: Yes, it is specifically designed for heavy-load environments such as steel mills and mining equipment.
Đánh giá
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