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
23038EAKW33
190.000 mm
290.000 mm
75.000 mm
2.100 mm
17.300 kg
23038EAKW33C3
190.000 mm
290.000 mm
75.000 mm
2.100 mm
17.300 kg
23038EAKW33C4
190.000 mm
290.000 mm
75.000 mm
2.100 mm
17.300 kg
23038EMKW33
190.000 mm
290.000 mm
75.000 mm
2.100 mm
17.400 kg
23038EMKW33C3
190.000 mm
290.000 mm
75.000 mm
2.100 mm
17.400 kg
23040BL1KC3
200.000 mm
310.000 mm
82.000 mm
2.100 mm
22.700 kg
23040BL1KW33C2
200.000 mm
310.000 mm
82.000 mm
2.100 mm
21.900 kg
23040EMKW33
200.000 mm
310.000 mm
82.000 mm
2.100 mm
22.100 kg
23040EMKW33C3
200.000 mm
310.000 mm
82.000 mm
2.100 mm
22.100 kg
23040EMKW33C4
200.000 mm
310.000 mm
82.000 mm
2.100 mm
22.100 kg
23044EMKW33
220.000 mm
340.000 mm
90.000 mm
3.000 mm
29.100 kg
23044EMKW33C3
220.000 mm
340.000 mm
90.000 mm
3.000 mm
29.100 kg
23044EMKW33C4
220.000 mm
340.000 mm
90.000 mm
3.000 mm
29.100 kg
23048EAKW33C3
240.000 mm
360.000 mm
92.000 mm
3.000 mm
23048EMKW33
240.000 mm
360.000 mm
92.000 mm
3.000 mm
31.700 kg
23048EMKW33C3
240.000 mm
360.000 mm
92.000 mm
3.000 mm
31.700 kg
23052EMKW33
260.000 mm
400.000 mm
104.000 mm
4.000 mm
46.300 kg
23052EMKW33C3
260.000 mm
400.000 mm
104.000 mm
4.000 mm
46.300 kg
23052EMKW33C3PX50
260.000 mm
400.000 mm
104.000 mm
4.000 mm
35.000 kg
23030EAKW33C3
150.000 mm
225.000 mm
56.000 mm
2.100 mm
7.450 kg
23030EMKW33
150.000 mm
225.000 mm
56.000 mm
2.100 mm
7.500 kg
23030EMKW33C3
150.000 mm
225.000 mm
56.000 mm
2.100 mm
7.500 kg
23030VMKW33C4
150.000 mm
225.000 mm
56.000 mm
2.100 mm
23032EAKW33
160.000 mm
240.000 mm
60.000 mm
2.100 mm
9.030 kg