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
22309EAKW33C3
45.000 mm
100.000 mm
36.000 mm
1.500 mm
1.340 kg
22309EAKW33C4
45.000 mm
100.000 mm
36.000 mm
1.500 mm
1.340 kg
22309EMKW33
45.000 mm
100.000 mm
36.000 mm
1.500 mm
1.350 kg
22309EMKW33C3
45.000 mm
100.000 mm
36.000 mm
1.500 mm
1.350 kg
22310EAKW33
50.000 mm
110.000 mm
40.000 mm
2.000 mm
1.790 kg
22310EAKW33C3
50.000 mm
110.000 mm
40.000 mm
2.000 mm
1.790 kg
22310EMKW33
50.000 mm
110.000 mm
40.000 mm
2.000 mm
1.800 kg
22310EMKW33C3
50.000 mm
110.000 mm
40.000 mm
2.000 mm
1.800 kg
22311EAKW33
55.000 mm
120.000 mm
43.000 mm
2.000 mm
2.260 kg
22311EAKW33C3
55.000 mm
120.000 mm
43.000 mm
2.000 mm
2.260 kg
22311EKMA44
55.000 mm
120.000 mm
43.000 mm
2.000 mm
22311EMKW33
55.000 mm
120.000 mm
43.000 mm
2.000 mm
2.290 kg
22311EMKW33C3
55.000 mm
120.000 mm
43.000 mm
2.000 mm
2.290 kg
22311EMKW33C4
55.000 mm
120.000 mm
43.000 mm
2.000 mm
2.290 kg
22312EAKW33
60.000 mm
130.000 mm
46.000 mm
2.100 mm
2.800 kg
22236EAKW33C3
180.000 mm
320.000 mm
86.000 mm
4.000 mm
22236EMKW33
180.000 mm
320.000 mm
86.000 mm
4.000 mm
28.700 kg
22236EMKW33C3
180.000 mm
320.000 mm
86.000 mm
4.000 mm
28.700 kg
22236EMKW33C4
180.000 mm
320.000 mm
86.000 mm
4.000 mm
28.700 kg
22238EAKW33
190.000 mm
340.000 mm
92.000 mm
4.000 mm
22238EAKW33C3
190.000 mm
340.000 mm
92.000 mm
4.000 mm
22238EMKW33
190.000 mm
340.000 mm
92.000 mm
4.000 mm
34.900 kg
22238EMKW33C3
190.000 mm
340.000 mm
92.000 mm
4.000 mm
34.900 kg
22240EAKW33
200.000 mm
360.000 mm
98.000 mm
4.000 mm