Spherical Roller Bearings w/ Tapered Bore

**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.

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Part Number d D B r Mass
23164BL1KW33
320.000 mm
540.000 mm
176.000 mm
5.000 mm
162.000 kg
23164VMKW33C3
320.000 mm
540.000 mm
176.000 mm
5.000 mm
23168BKW33
340.000 mm
580.000 mm
190.000 mm
5.000 mm
204.000 kg
23168BL1KW33C3
340.000 mm
580.000 mm
190.000 mm
5.000 mm
204.000 kg
23168VMKW33C3
340.000 mm
580.000 mm
190.000 mm
5.000 mm
23172BKW33C3
360.000 mm
600.000 mm
192.000 mm
5.000 mm
233.000 kg
23172VMKW33
360.000 mm
600.000 mm
192.000 mm
5.000 mm
223.800 kg
23176BKW33C3
380.000 mm
620.000 mm
194.000 mm
5.000 mm
228.000 kg
23176BL1KW33
380.000 mm
620.000 mm
194.000 mm
5.000 mm
246.000 kg
23176BL1KW33C3
380.000 mm
620.000 mm
194.000 mm
5.000 mm
246.000 kg
23180BKW33C3
400.000 mm
650.000 mm
200.000 mm
6.000 mm
254.300 kg
23180BL1KW33C3
400.000 mm
650.000 mm
200.000 mm
6.000 mm
256.000 kg
23188BL1KW33
440.000 mm
720.000 mm
226.000 mm
6.000 mm
358.000 kg
23192BL1KW33
460.000 mm
760.000 mm
240.000 mm
7.500 mm
429.000 kg
23196BL1K
480.000 mm
790.000 mm
248.000 mm
7.500 mm
477.000 kg
23134EMKW33
170.000 mm
280.000 mm
88.000 mm
2.100 mm
20.900 kg
23134EMKW33C3
170.000 mm
280.000 mm
88.000 mm
2.100 mm
20.900 kg
23136EAKW33
180.000 mm
300.000 mm
96.000 mm
3.000 mm
26.400 kg
23136EAKW33C3
180.000 mm
300.000 mm
96.000 mm
3.000 mm
26.400 kg
23136EMKW33
180.000 mm
300.000 mm
96.000 mm
3.000 mm
26.400 kg
23136EMKW33C3
180.000 mm
300.000 mm
96.000 mm
3.000 mm
26.500 kg
23136EMKW33C4
180.000 mm
300.000 mm
96.000 mm
3.000 mm
25.100 kg
23138EMKW33
190.000 mm
320.000 mm
104.000 mm
3.000 mm
33.200 kg
23138EMKW33C3
190.000 mm
320.000 mm
104.000 mm
3.000 mm
33.200 kg