Cylindrical Roller Radial Bearings – Single Row ISO

**TIMKEN Cylindrical Roller Bearings: Engineered for High Performance and Reliability**

TIMKEN cylindrical roller bearings are precision-engineered solutions designed to deliver exceptional radial load capacity, durability, and efficiency in demanding industrial and automotive applications. As a leader in mechanical power transmission and bearing technology, TIMKEN has perfected the design of these bearings to meet the rigorous demands of heavy machinery, high-speed equipment, and precision systems.

### **Technical Features & Design Advantages**
TIMKEN cylindrical roller radial bearings feature a robust construction with cylindrical rollers guided by high-strength cages, ensuring optimal load distribution and reduced friction. Key design elements include:

– **High Radial Load Capacity:** The line-contact design between rollers and raceways maximizes load-bearing efficiency, making these bearings ideal for applications with heavy radial loads.
– **Precision Engineering:** Tight tolerances and superior surface finishes minimize vibration and noise, enhancing performance in precision equipment such as machine tools and gearboxes.
– **Enhanced Cage Designs:** Options include brass, steel, or polymer cages to accommodate high speeds, extreme temperatures, or corrosive environments.
– **Interchangeability & Configurations:** Available in single-row, double-row, and multi-row designs, with separable or non-separable inner/outer rings for easier installation and maintenance.
– **Specialized Coatings & Materials:** Advanced heat treatment processes and corrosion-resistant coatings extend service life in harsh conditions, such as mining or marine environments.

### **Performance Benefits**
TIMKEN cylindrical roller bearings outperform competitors by delivering:
– **Extended Service Life:** Reduced wear and optimized lubrication retention lower maintenance frequency.
– **High-Speed Capability:** Precision-balanced components minimize heat generation, allowing stable operation at elevated RPMs.
– **Energy Efficiency:** Low friction design reduces power consumption, contributing to sustainable operations.
– **Versatility:** Customizable bore sizes, seals, and lubrication options ensure compatibility with diverse applications.

### **Typical Applications**
These bearings are widely used across industries, including:
– **Industrial Machinery:** Gearboxes, pumps, compressors, and conveyor systems requiring high radial stiffness.
– **Automotive Systems:** Wheel hubs, transmissions, and electric vehicle drivetrains demanding durability and efficiency.
– **Precision Equipment:** CNC spindles, printing presses, and robotics where accuracy and smooth operation are critical.

TIMKEN’s cylindrical roller bearings represent a blend of innovation and reliability, ensuring optimal performance even in the most challenging environments. By leveraging advanced materials and precision manufacturing, TIMKEN continues to set the standard for mechanical power transmission solutions worldwide.

For engineers and maintenance professionals seeking dependable, high-performance bearings, TIMKEN cylindrical roller bearings offer a proven solution for maximizing uptime and operational efficiency.

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Part Number Rows per Set d - Bore D - Outer Diameter Bearing Width Total Width Contact Angle C0 - Static Radial Rating (per row) Ce - Dynamic Radial Rating (per row) Ball Type
NUP252MAC3
260 mm
480 mm
65.075 mm
80 mm
1710000 N
1320000 N
930 rpm
1100 rpm
4 mm
NUP5161M
305 mm
460 mm
57.56 mm
65 mm
1950000 N
1280000 N
560 rpm
630 rpm
4 mm
NJ348EMA
240 mm
500 mm
95 mm
95 mm
2190000 N
1900000 N
930 rpm
1000 rpm
4 mm
NU1056MA
280 mm
420 mm
65 mm
65 mm
1080000 N
754000 N
1300 rpm
1600 rpm
3 mm
NU1064MA
320.000 mm
480 mm
74 mm
74 mm
1500000 N
1020000 N
1100 rpm
1300 rpm
4 mm
NJ348MA
240 mm
500 mm
95 mm
95 mm
1950000 N
1430000 N
990 rpm
1100 rpm
4 mm
NU1056MAC3
280 mm
420 mm
65 mm
65 mm
1080000 N
754000 N
1300 rpm
1600 rpm
3 mm
320RN91 R3
320.000 mm
500 mm
130.2 mm
130.2 mm
4210000 N
2390000 N
550 rpm
600 rpm
4.1 mm
NU348EMA
240 mm
500 mm
95 mm
95 mm
2190000 N
1900000 N
930 rpm
1000 rpm
4 mm
NU1056MAC4
280 mm
420 mm
65 mm
65 mm
1080000 N
754000 N
1300 rpm
1600 rpm
3 mm
320NU92W45C
320.000 mm
580 mm
190.6 mm
190.6 mm
6790000 N
4020000 N
470 rpm
500 rpm
CAD
NJ348EMAC3
240 mm
500 mm
95 mm
95 mm
2190000 N
1900000 N
930 rpm
1000 rpm
4 mm
NU1056MAW49W98W3AC3
280 mm
420 mm
65 mm
65 mm
1090000 N
754000 N
1300 rpm
1600 rpm
4 mm
NU5164MAW61
320.000 mm
580 mm
190.5 mm
190.5 mm
6440000 N
4480000 N
480 rpm
520 rpm
4 mm
NU348EMAC3
240 mm
500 mm
95 mm
95 mm
2190000 N
1900000 N
930 rpm
1000 rpm
4 mm
280RN91 R3
280 mm
460 mm
123.825 mm
123.825 mm
3700000 N
2410000 N
620 rpm
680 rpm
4 mm
NU5164MAW61C3
320.000 mm
580 mm
190.5 mm
190.5 mm
6440000 N
4480000 N
480 rpm
520 rpm
4 mm
NU340EMA
200 mm
420 mm
80 mm
80 mm
1580000 N
1360000 N
1200 rpm
1300 rpm
5 mm
NJ2344EMAC3
220 mm
460 mm
145 mm
145 mm
3180000 N
2200000 N
790 rpm
870 rpm
4 mm
NF5142M
210 mm
380 mm
61 mm
61 mm
1020000 N
764000 N
950 rpm
1100 rpm
4 mm