Spherical Roller Bearings

**NSK Spherical Roller Bearings: Precision Motion for Demanding Industrial Applications**

In the world of precision motion and control, NSK stands as a leader in delivering high-performance bearing solutions designed to meet the rigorous demands of modern industrial machinery, automotive systems, and precision equipment. Among NSK’s extensive portfolio of roller bearings, **Spherical Roller Bearings** stand out for their exceptional load capacity, self-aligning capability, and durability—making them indispensable in applications where misalignment, heavy loads, and harsh operating conditions are common challenges.

### **Technical Features & Design Excellence**
NSK’s Spherical Roller Bearings are engineered with a robust double-row barrel-shaped roller design, paired with a spherical outer ring raceway. This unique construction allows the bearings to accommodate **both radial and axial loads simultaneously**, while compensating for **shaft misalignment**—a critical advantage in machinery subject to deflection or mounting inaccuracies. Key technical features include:

– **High Load Capacity:** Optimized roller geometry and advanced heat treatment processes ensure superior resistance to dynamic and static loads, extending service life even under extreme stress.
– **Self-Alignment Capability:** The spherical outer ring design permits up to **2-3 degrees of angular misalignment**, reducing stress concentrations and preventing premature failure in applications where shaft deflection or housing distortion occurs.
– **Enhanced Lubrication & Sealing:** NSK incorporates advanced sealing solutions and lubrication technologies to minimize friction, reduce wear, and prevent contamination—critical for bearings operating in dirty or high-temperature environments.
– **Precision-Grade Manufacturing:** Manufactured to tight tolerances using high-quality steel and advanced grinding techniques, NSK Spherical Roller Bearings deliver smooth, vibration-free operation essential for precision equipment.

### **Performance Advantages for Industrial & Automotive Applications**
NSK’s Spherical Roller Bearings excel in applications requiring **high reliability, long service life, and minimal maintenance**. Their ability to handle heavy loads and misalignment makes them ideal for:

– **Industrial Machinery:** Used in gearboxes, conveyors, crushers, and mining equipment where shock loads and misalignment are prevalent.
– **Material Handling & Construction Equipment:** Essential for cranes, excavators, and heavy-duty pulleys where durability under variable loads is critical.
– **Automotive & Transportation:** Applied in truck axles, transmissions, and off-road vehicles that demand robust performance under harsh conditions.
– **Wind Turbines & Energy Systems:** Trusted in renewable energy applications where reliability and minimal downtime are paramount.

### **Conclusion: Engineered for Reliability & Efficiency**
NSK Spherical Roller Bearings represent the pinnacle of precision motion control, combining innovative design with high-performance materials to deliver unmatched reliability in the most demanding environments. Whether in heavy industry, automotive systems, or precision machinery, NSK’s bearings ensure **smooth operation, extended service life, and reduced maintenance costs**—reinforcing NSK’s reputation as a global leader in advanced bearing technology.

For industries that demand **durability, precision, and efficiency**, NSK Spherical Roller Bearings provide the optimal solution to enhance performance and productivity.

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Designations Nominal Dimensions Basic Load Ratings Speeds
Limiting Speeds
d
mm
D
mm
B
mm
r (min.)
mm
Cr
N
C0r
N
Grease
min-1
Oil (Oil-bath)
min-1
240/950CAME4
950
1360
412
7.5
14500000
36500000
120
160
240/1120CAME4
1120
1580
462
9.5
18700000
49500000
95
120
240/950CAMK30E4
950
1360
412
7.5
14500000
36500000
120
160
240/1120CAMK30E4
1120
1580
462
9.5
18700000
49500000
95
120
239/1000CAME4
1000
1320
236
7.5
8200000
21700000
190
240/1180CAME4
1180
1660
475
9.5
20200000
52500000
85
110
239/1000CAMKE4
1000
1320
236
7.5
8200000
21700000
190
240/1180CAMK30E4
1180
1660
475
9.5
20200000
52500000
85
110
230/1000CAME4
1000
1420
308
7.5
11900000
28100000
170
240/1250CAME4
1250
1750
500
9.5
21000000
59500000
75
100
230/1000CAMKE4
1000
1420
308
7.5
11900000
28100000
170
240/1250CAMK30E4
1250
1750
500
9.5
21000000
59500000
75
100
240/1000CAME4
1000
1420
412
7.5
15300000
38500000
110
150
240/1320CAME4
1320
1850
530
12
22600000
63500000
67
85
240/1000CAMK30E4
1000
1420
412
7.5
15300000
38500000
110
150
240/1320CAMK30E4
1320
1850
530
12
22600000
63500000
67
85
230/900CAME4
900
1280
280
7.5
9850000
22800000
200
239/1060CAME4
1060
1400
250
7.5
9300000
24400000
170
240/1400CAME4
1400
1950
545
12
24500000
65000000
60
75
230/900CAMKE4
900
1280
280
7.5
9850000
22800000
200