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
23026EAKW33C3
130.000 mm
200.000 mm
52.000 mm
2.000 mm
5.710 kg
23026EMKW33
130.000 mm
200.000 mm
52.000 mm
2.000 mm
5.730 kg
23026EMKW33C3
130.000 mm
200.000 mm
52.000 mm
2.000 mm
5.730 kg
23028EAKW33
140.000 mm
210.000 mm
53.000 mm
2.000 mm
6.130 kg
23028EAKW33C2
140.000 mm
210.000 mm
53.000 mm
2.000 mm
6.130 kg
23028EAKW33C3
140.000 mm
210.000 mm
53.000 mm
2.000 mm
6.130 kg
23028EAKW33C4
140.000 mm
210.000 mm
53.000 mm
2.000 mm
6.130 kg
23028EKMA41
140.000 mm
210.000 mm
53.000 mm
2.000 mm
23028EMKW33
140.000 mm
210.000 mm
53.000 mm
2.000 mm
6.180 kg
23028EMKW33C3
140.000 mm
210.000 mm
53.000 mm
2.000 mm
6.180 kg
23030EAKW33
150.000 mm
225.000 mm
56.000 mm
2.100 mm
7.450 kg
22332EMKW33C3
160.000 mm
340.000 mm
114.000 mm
4.000 mm
49.500 kg
22334EAKW33C3
170.000 mm
360.000 mm
120.000 mm
4.000 mm
22334EMKW33
170.000 mm
360.000 mm
120.000 mm
4.000 mm
59.100 kg
22334EMKW33C3
170.000 mm
360.000 mm
120.000 mm
4.000 mm
59.100 kg
22336EMKW33
180.000 mm
380.000 mm
126.000 mm
4.000 mm
68.700 kg
22336EMKW33C3
180.000 mm
380.000 mm
126.000 mm
4.000 mm
68.700 kg
22338EMKW33
190.000 mm
400.000 mm
132.000 mm
5.000 mm
79.900 kg
22338EMKW33C3
190.000 mm
400.000 mm
132.000 mm
5.000 mm
79.900 kg
22340EMKW33
200.000 mm
420.000 mm
138.000 mm
5.000 mm
92.700 kg
22340EMKW33C3
200.000 mm
420.000 mm
138.000 mm
5.000 mm
92.700 kg
22344BKW33C3
220.000 mm
460.000 mm
145.000 mm
5.000 mm
115.000 kg
22344BL1KW33C3
220.000 mm
460.000 mm
145.000 mm
5.000 mm
112.844 kg
22348BKW33
240.000 mm
500.000 mm
155.000 mm
5.000 mm
145.000 kg