Cylindrical Roller Radial Bearings – Single Row Standard

**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
320RU91R3
320.000 mm
500 mm
130.175 mm
130.175 mm
4210000 N
2390000 N
550 rpm
600 rpm
3 mm
275RIU808R3
698.5 mm
1016 mm
133.35 mm
133.35 mm
8340000 N
4600000 N
210 rpm
230 rpm
6.1 mm
320RU91 R3
320.000 mm
500 mm
130.175 mm
130.175 mm
4210000 N
2390000 N
550 rpm
600 rpm
3 mm
280RU91OD1268R7
280 mm
460 mm
123.825 mm
123.825 mm
3700000 N
2110000 N
620 rpm
680 rpm
4 mm
320RU31OB1268R2
320.000 mm
540 mm
176 mm
176 mm
5860000 N
3380000 N
510 rpm
550 rpm
4.1 mm
280RU91OE1792R3
280 mm
460 mm
123.825 mm
123.825 mm
3700000 N
2110000 N
620 rpm
680 rpm
4 mm
320RU31OB1268 R2
320.000 mm
540 mm
176 mm
176 mm
5860000 N
3380000 N
510 rpm
550 rpm
4.1 mm
280RU91OD1268 R3
280 mm
460 mm
123.825 mm
123.825 mm
3700000 N
2410000 N
620 rpm
680 rpm
4 mm
320RU92AC1112R3
320.000 mm
580 mm
190.5 mm
190.5 mm
6790000 N
4020000 N
470 rpm
500 rpm
4.1 mm
280RU91OD1268 R7
280 mm
460 mm
123.825 mm
123.825 mm
3700000 N
2410000 N
620 rpm
680 rpm
4 mm
340RU30R3
340.000 mm
520 mm
133 mm
133 mm
4580000 N
2520000 N
510 rpm
550 rpm
4.1 mm
280RU51 R3
280 mm
460 mm
63 mm
63 mm
1340000 N
954000 N
690 rpm
810 rpm
3 mm
135RIJ580BO622R3
342.900 mm
457.2 mm
57.15 mm
57.15 mm
1530000 N
814000 N
580 rpm
680 rpm
5.1 mm
280RU92AC1112
280 mm
500 mm
165.1 mm
165.1 mm
5180000 N
3630000 N
570 rpm
610 rpm
4 mm
400RU30R3
400 mm
600 mm
148 mm
148 mm
5890000 N
3070000 N
410 rpm
450 rpm
5.2 mm
280RU92AC1112R3
280 mm
500 mm
165.1 mm
165.1 mm
5220000 N
3150000 N
570 rpm
610 rpm
5.2 mm
160RIU643 R3
406.400 mm
546.1 mm
69.85 mm
69.85 mm
2500000 N
1320000 N
450 rpm
510 rpm
5.1 mm
300RU30OA107R3
300 mm
460 mm
118 mm
118 mm
3640000 N
1990000 N
600 rpm
660 rpm
4 mm
160RIU644R2
406.400 mm
603.25 mm
82.55 mm
82.55 mm
2770000 N
1690000 N
440 rpm
510 rpm
5.1 mm
300RU30R4
300 mm
460 mm
118 mm
118 mm
3640000 N
1990000 N
600 rpm
660 rpm
CAD