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
22330EMKW33
150.000 mm
320.000 mm
108.000 mm
4.000 mm
41.300 kg
22330EMKW33C3
150.000 mm
320.000 mm
108.000 mm
4.000 mm
41.300 kg
22332EMKW33
160.000 mm
340.000 mm
114.000 mm
4.000 mm
49.500 kg
22316EMKW33
80.000 mm
170.000 mm
58.000 mm
2.100 mm
6.150 kg
22316EMKW33C3
80.000 mm
170.000 mm
58.000 mm
2.100 mm
6.150 kg
22317EAKW33
85.000 mm
180.000 mm
60.000 mm
3.000 mm
7.040 kg
22317EAKW33C3
85.000 mm
180.000 mm
60.000 mm
3.000 mm
7.040 kg
22317EAKW33C4
85.000 mm
180.000 mm
60.000 mm
3.000 mm
7.040 kg
22317EMKW33
85.000 mm
180.000 mm
60.000 mm
3.000 mm
7.230 kg
22317EMKW33C3
85.000 mm
180.000 mm
60.000 mm
3.000 mm
7.230 kg
22318EAKW33
90.000 mm
190.000 mm
64.000 mm
3.000 mm
8.250 kg
22318EAKW33C3
90.000 mm
190.000 mm
64.000 mm
3.000 mm
8.250 kg
22318EAKW33C4
90.000 mm
190.000 mm
64.000 mm
3.000 mm
8.250 kg
22318EMKW33
90.000 mm
190.000 mm
64.000 mm
3.000 mm
8.350 kg
22318EMKW33C3
90.000 mm
190.000 mm
64.000 mm
3.000 mm
8.350 kg
22319EAKW33
95.000 mm
200.000 mm
67.000 mm
3.000 mm
9.710 kg
22319EAKW33C3
95.000 mm
200.000 mm
67.000 mm
3.000 mm
9.710 kg
22319EMKW33
95.000 mm
200.000 mm
67.000 mm
3.000 mm
9.820 kg
22319EMKW33C3
95.000 mm
200.000 mm
67.000 mm
3.000 mm
9.820 kg
22320EAKW33
100.000 mm
215.000 mm
73.000 mm
3.000 mm
12.300 kg
22320EAKW33C3
100.000 mm
215.000 mm
73.000 mm
3.000 mm
12.300 kg
22320EMKW33
100.000 mm
215.000 mm
73.000 mm
3.000 mm
12.700 kg
22320EMKW33C3
100.000 mm
215.000 mm
73.000 mm
3.000 mm
12.700 kg
22312EAKW33C3
60.000 mm
130.000 mm
46.000 mm
2.100 mm
2.800 kg