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
23276BL1KW33
380.000 mm
680.000 mm
240.000 mm
6.000 mm
365.981 kg
23276BL1KW33C3
380.000 mm
680.000 mm
240.000 mm
6.000 mm
365.981 kg
23280BKW33C3
400.000 mm
720.000 mm
256.000 mm
6.000 mm
443.000 kg
23284BKW33C3
420.000 mm
760.000 mm
272.000 mm
7.500 mm
528.000 kg
23284BKW33PX50V4
420.000 mm
760.000 mm
272.000 mm
7.500 mm
528.000 kg
239/1180KW33
1180.000 mm
1540.000 mm
272.000 mm
7.500 mm
1340.000 kg
239/500L1KW33C3
500.000 mm
670.000 mm
128.000 mm
5.000 mm
127.000 kg
23252VMKW33C3
260.000 mm
480.000 mm
174.000 mm
5.000 mm
239/530L1KC3PX50
530.000 mm
710.000 mm
136.000 mm
5.000 mm
152.000 kg
23256VMKW33C3
280.000 mm
500.000 mm
176.000 mm
5.000 mm
239/630L1KPX50
630.000 mm
850.000 mm
165.000 mm
6.000 mm
268.000 kg
23260BL1KW33
300.000 mm
540.000 mm
192.000 mm
5.000 mm
188.000 kg
239/710L1KW33C3
710.000 mm
950.000 mm
180.000 mm
6.000 mm
23260BL1KW33C3
300.000 mm
540.000 mm
192.000 mm
5.000 mm
188.000 kg
23944KW33C2
220.000 mm
300.000 mm
60.000 mm
2.100 mm
12.700 kg
23260VMKW33C3
300.000 mm
540.000 mm
192.000 mm
5.000 mm
23264BKW33C3
320.000 mm
580.000 mm
208.000 mm
5.000 mm
236.000 kg
23268BL1KW33C3
340.000 mm
620.000 mm
224.000 mm
6.000 mm
291.000 kg
23272BL1KW33
360.000 mm
650.000 mm
232.000 mm
6.000 mm
329.000 kg
23240EMKW33C3
200.000 mm
360.000 mm
128.000 mm
4.000 mm
53.600 kg