Premium NUZ 1848 ECMA Cylindrical Roller Bearing - Enhanced Capacity for Heavy-Duty Gearboxes
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Engineered for the most demanding industrial environments, our Cylindrical Roller Bearings (NU/NJ/NUP Series) are designed to handle extreme radial loads and high-speed operations. Whether you are operating in the scorching deserts of Saudi Arabia or the high-humidity coastal zones of the UAE, these bearings ensure your machinery stays running with zero unplanned downtime.
- Machined Brass Cage (MA/ECMA): Provides superior stability, reduces friction, and withstands higher temperatures compared to standard steel cages—essential for the Middle East’s harsh climates.
- Enhanced Load Rating: The ECMA design offers optimized internal geometry for maximum service life.
- Precision Engineering: Manufactured to global ISO standards, ensuring 100% interchangeability with leading European and Japanese brands.
Real-World Applications:
- Oil & Gas : Used in mud pumps, rotary tables, and top drives where high radial load and sand/dust resistance are critical.
- Cement & Mining : Perfect for large crushers, vibrating screens, and conveyor systems in high-dust environments.
- Water Desalination : High-grade brass cage bearings for heavy-duty pumps required for 24/7 water supply operations.
- Steel Mills : Ideal for rolling mills where extreme heat and shock loads are daily challenges.
Q1: Can these bearings survive 50°C+ ambient temperatures?
A: Yes. Our MA (Brass Cage) series is specifically chosen for Middle Eastern customers. Brass doesn't lose its integrity in extreme heat, and we use high-grade lubrication channels to ensure optimal cooling even in mid-summer desert conditions.
Q2: Do you offer bulk discounts for yearly contracts?
A: Absolutely. We value long-term partnerships . We offer flexible payment terms and tiered pricing for distributors and large-scale industrial end-users.
| Parameter | Value (48series) | Unit |
|---|---|---|
| Bore Diameter | 240 | mm |
| Outside Diameter | 360 - 500 (Depending on Series) | mm |
| Width | 56 - 155 | mm |
| Basic Dynamic Load | Up to 2,500 (for NU 2348) | kN |
| Limiting Speed | 1,200 - 2,800 | r/min |
| Operating Temperature | -30 to +150 (Heat Stabilized) | °C |
| Cage Material | Machined Brass (MA/ECMA) | - |
| Bearings No. | d (mm) | D (mm) | B (mm) | Cr (kN) | C0r (kN) | Weight (kg) |
|---|---|---|---|---|---|---|
| NUZ 1848 ECMA | 240 | 300 | 28 | 201 | 365 | 4.5 |
| NU 1048 MA | 240 | 360 | 56 | 523 | 800 | 20 |
| NJ 248 MA | 240 | 440 | 72 | 952 | 1370 | 52.5 |
| NU 248 MA | 240 | 440 | 72 | 952 | 1370 | 51.5 |
| NUP 248 MA | 240 | 440 | 72 | 952 | 1370 | 53.5 |
| 313221 | 240 | 440 | 120 | 1570 | 2500 | 84 |
| NJ 2248 MA | 240 | 440 | 120 | 1450 | 2360 | 85 |
| NU 2248 MA | 240 | 440 | 120 | 1450 | 2360 | 84 |
| NUB 248 MA | 240 | 440 | 120 | 952 | 1370 | 51.5 |
| NJ 348 MA | 240 | 500 | 95 | 1450 | 2000 | 98.5 |
| NU 348 M | 240 | 500 | 95 | 1450 | 2000 | 94.5 |
| NU 2348 ECMA | 240 | 500 | 155 | 2600 | 3650 | 155 |