**Introduction to NTN Spherical Roller Bearings: Precision, Durability, and Versatility**
NTN is a globally recognized leader in the design and manufacture of high-performance rolling bearings, with a strong reputation for innovation and reliability. Among its extensive product portfolio, **NTN Spherical Roller Bearings** stand out as a critical solution for applications requiring exceptional load capacity, misalignment compensation, and long service life. Available in **standard designs** and **tapered bore configurations**, these bearings are engineered to meet the demanding requirements of industrial machinery, automotive systems, and heavy-duty equipment.
### **Technical Features & Design Advantages**
NTN Spherical Roller Bearings are designed with a **self-aligning capability**, thanks to their unique spherical raceway in the outer ring and barrel-shaped rollers. This allows them to accommodate **shaft misalignment** and **housing deflections**, reducing stress and wear in applications where alignment precision is challenging. Key features include:
– **High Load Capacity**: Optimized roller geometry and advanced heat treatment ensure superior **radial and axial load handling**, making them ideal for heavy machinery and shock-loaded environments.
– **Robust Construction**: NTN bearings incorporate **high-quality steel alloys** and precision grinding for enhanced durability, even in contaminated or high-vibration conditions.
– **Tapered Bore Option**: Spherical roller bearings with a **tapered bore** facilitate easier mounting and dismounting using adapter sleeves or withdrawal sleeves, ensuring a secure fit on tapered shafts.
– **Advanced Sealing & Lubrication**: Options include **labyrinth seals, snap-ring grooves**, and specialized grease formulations to extend maintenance intervals and protect against contaminants.
### **Performance Benefits**
NTN’s Spherical Roller Bearings deliver **longer operational life** and **reduced downtime** in harsh industrial environments. Their ability to **compensate for misalignment** minimizes edge loading, while optimized internal clearances enhance performance under fluctuating temperatures and speeds. Additionally, NTN’s proprietary manufacturing processes ensure **low noise, smooth operation**, and **energy efficiency**, contributing to lower total cost of ownership.
### **Typical Applications**
These bearings are widely used across industries where reliability under heavy loads and misalignment is critical:
– **Industrial Machinery**: Crushers, pulverizers, conveyors, and gearboxes in mining, cement, and steel production.
– **Automotive & Transportation**: Heavy-duty truck axles, off-road vehicle transmissions, and rail traction systems.
– **Energy & Power Generation**: Wind turbine pitch/yaw systems, hydroelectric turbines, and generator shafts.
– **Precision Equipment**: Paper mill rollers, printing presses, and large-scale pumps requiring precise alignment tolerance.
With a commitment to **precision engineering** and **continuous innovation**, NTN’s Spherical Roller Bearings—whether standard or tapered bore—provide unmatched performance in the most challenging applications. By combining **robust construction, adaptability, and ease of maintenance**, NTN ensures optimal machinery uptime and efficiency for customers worldwide.
For industries demanding **durability, flexibility, and high load-bearing performance**, NTN’s Spherical Roller Bearings remain a trusted solution. Explore NTN’s full range to find the ideal bearing configuration for your specific operational needs.
Part Number | d | D | B | r | Mass |
---|---|---|---|---|---|
380.000 mm |
680.000 mm |
240.000 mm |
6.000 mm |
365.981 kg |
|
380.000 mm |
680.000 mm |
240.000 mm |
6.000 mm |
365.981 kg |
|
400.000 mm |
720.000 mm |
256.000 mm |
6.000 mm |
443.000 kg |
|
420.000 mm |
760.000 mm |
272.000 mm |
7.500 mm |
528.000 kg |
|
420.000 mm |
760.000 mm |
272.000 mm |
7.500 mm |
528.000 kg |
|
1180.000 mm |
1540.000 mm |
272.000 mm |
7.500 mm |
1340.000 kg |
|
500.000 mm |
670.000 mm |
128.000 mm |
5.000 mm |
127.000 kg |
|
260.000 mm |
480.000 mm |
174.000 mm |
5.000 mm |
||
530.000 mm |
710.000 mm |
136.000 mm |
5.000 mm |
152.000 kg |
|
280.000 mm |
500.000 mm |
176.000 mm |
5.000 mm |
||
630.000 mm |
850.000 mm |
165.000 mm |
6.000 mm |
268.000 kg |
|
300.000 mm |
540.000 mm |
192.000 mm |
5.000 mm |
188.000 kg |
|
710.000 mm |
950.000 mm |
180.000 mm |
6.000 mm |
||
300.000 mm |
540.000 mm |
192.000 mm |
5.000 mm |
188.000 kg |
|
220.000 mm |
300.000 mm |
60.000 mm |
2.100 mm |
12.700 kg |
|
300.000 mm |
540.000 mm |
192.000 mm |
5.000 mm |
||
320.000 mm |
580.000 mm |
208.000 mm |
5.000 mm |
236.000 kg |
|
340.000 mm |
620.000 mm |
224.000 mm |
6.000 mm |
291.000 kg |
|
360.000 mm |
650.000 mm |
232.000 mm |
6.000 mm |
329.000 kg |
|
200.000 mm |
360.000 mm |
128.000 mm |
4.000 mm |
53.600 kg |