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
239/630L1KPX50
630.000 mm
850.000 mm
165.000 mm
6.000 mm
268.000 kg
239/710L1KW33C3
710.000 mm
950.000 mm
180.000 mm
6.000 mm
23944KW33C2
220.000 mm
300.000 mm
60.000 mm
2.100 mm
12.700 kg
23230EMKW33
150.000 mm
270.000 mm
96.000 mm
3.000 mm
22.900 kg
23230EMKW33C3
150.000 mm
270.000 mm
96.000 mm
3.000 mm
22.900 kg
23232EAKW33C3
160.000 mm
290.000 mm
104.000 mm
3.000 mm
29.420 kg
23232EMKW33
160.000 mm
290.000 mm
104.000 mm
3.000 mm
28.800 kg
23232EMKW33C3
160.000 mm
290.000 mm
104.000 mm
3.000 mm
28.800 kg
23234EMKW33
170.000 mm
310.000 mm
110.000 mm
4.000 mm
34.800 kg
23234EMKW33C3
170.000 mm
310.000 mm
110.000 mm
4.000 mm
34.800 kg
23236EMKW33
180.000 mm
320.000 mm
112.000 mm
4.000 mm
37.100 kg
23236EMKW33C3
180.000 mm
320.000 mm
112.000 mm
4.000 mm
37.100 kg
23236EMKW33C4
180.000 mm
320.000 mm
112.000 mm
4.000 mm
37.100 kg
23238EMKW33
190.000 mm
340.000 mm
120.000 mm
4.000 mm
44.700 kg
23240EMKW33
200.000 mm
360.000 mm
128.000 mm
4.000 mm
53.600 kg
23240EMKW33C3
200.000 mm
360.000 mm
128.000 mm
4.000 mm
53.600 kg
23244EMKW33
220.000 mm
400.000 mm
144.000 mm
4.000 mm
77.100 kg
23244EMKW33C3
220.000 mm
400.000 mm
144.000 mm
4.000 mm
77.100 kg
23248BK
240.000 mm
440.000 mm
160.000 mm
4.000 mm
105.000 kg
23248BL1KW33
240.000 mm
440.000 mm
160.000 mm
4.000 mm
113.000 kg
23248VMKW33C3
240.000 mm
440.000 mm
160.000 mm
4.000 mm
23252BKC3
260.000 mm
480.000 mm
174.000 mm
5.000 mm
137.000 kg
23252BKW33
260.000 mm
480.000 mm
174.000 mm
5.000 mm
149.000 kg
23218EAKW33
90.000 mm
160.000 mm
52.400 mm
2.000 mm
4.380 kg