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
22312EMKW33
60.000 mm
130.000 mm
46.000 mm
2.100 mm
2.850 kg
22312EMKW33C3
60.000 mm
130.000 mm
46.000 mm
2.100 mm
2.850 kg
22313EAKW33
65.000 mm
140.000 mm
48.000 mm
2.100 mm
3.410 kg
22313EAKW33C3
65.000 mm
140.000 mm
48.000 mm
2.100 mm
3.410 kg
22313EAKW33C4
65.000 mm
140.000 mm
48.000 mm
2.100 mm
3.410 kg
22313EMKW33
65.000 mm
140.000 mm
48.000 mm
2.100 mm
3.430 kg
22313EMKW33C3
65.000 mm
140.000 mm
48.000 mm
2.100 mm
3.430 kg
22314EAKW33
70.000 mm
150.000 mm
51.000 mm
2.100 mm
4.160 kg
22314EAKW33C3
70.000 mm
150.000 mm
51.000 mm
2.100 mm
4.160 kg
22314EAKW33C4
70.000 mm
150.000 mm
51.000 mm
2.100 mm
4.160 kg
22314EMKW33
70.000 mm
150.000 mm
51.000 mm
2.100 mm
4.220 kg
22314EMKW33C3
70.000 mm
150.000 mm
51.000 mm
2.100 mm
4.220 kg
22315EAKW33
75.000 mm
160.000 mm
55.000 mm
2.100 mm
5.070 kg
22315EAKW33C3
75.000 mm
160.000 mm
55.000 mm
2.100 mm
5.070 kg
22315EAKW33C4
75.000 mm
160.000 mm
55.000 mm
2.100 mm
5.070 kg
22315EMKW33
75.000 mm
160.000 mm
55.000 mm
2.100 mm
5.160 kg
22315EMKW33C3
75.000 mm
160.000 mm
55.000 mm
2.100 mm
5.160 kg
22316EAKW33
80.000 mm
170.000 mm
58.000 mm
2.100 mm
5.990 kg
22316EAKW33C3
80.000 mm
170.000 mm
58.000 mm
2.100 mm
5.990 kg
22308EAKW33
40.000 mm
90.000 mm
33.000 mm
1.500 mm
1.000 kg
22308EAKW33C3
40.000 mm
90.000 mm
33.000 mm
1.500 mm
1.000 kg
22308EMKW33
40.000 mm
90.000 mm
33.000 mm
1.500 mm
1.010 kg
22308EMKW33C3
40.000 mm
90.000 mm
33.000 mm
1.500 mm
1.010 kg
22309EAKW33
45.000 mm
100.000 mm
36.000 mm
1.500 mm
1.300 kg