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
240RN91R3
240 mm
390 mm
107.95 mm
107.95 mm
2670000 N
1580000 N
790 rpm
880 rpm
CAD
250RIU91R3
250 mm
410 mm
111.125 mm
111.125 mm
2720000 N
1680000 N
770 rpm
850 rpm
CAD
240RJ91R3
240 mm
390 mm
107.95 mm
107.95 mm
2670000 N
1580000 N
790 rpm
880 rpm
CAD
250RIN91R3
250 mm
410 mm
111.125 mm
111.125 mm
2720000 N
1680000 N
770 rpm
850 rpm
CAD
240RF91R3
240 mm
390 mm
107.95 mm
107.95 mm
2670000 N
1580000 N
790 rpm
880 rpm
CAD
250RIJ91R3
250 mm
410 mm
111.125 mm
111.125 mm
2720000 N
1680000 N
770 rpm
850 rpm
CAD
240RT91R3
240 mm
390 mm
107.95 mm
107.95 mm
2670000 N
1580000 N
790 rpm
880 rpm
CAD
250RIF91R3
250 mm
410 mm
111.125 mm
111.125 mm
2720000 N
1680000 N
770 rpm
850 rpm
CAD
240RIU91R3
240 mm
390 mm
107.95 mm
107.95 mm
2670000 N
1580000 N
790 rpm
880 rpm
CAD
250RIT91R3
250 mm
410 mm
111.125 mm
111.125 mm
2720000 N
1680000 N
770 rpm
850 rpm
CAD
240RIN91R3
240 mm
390 mm
107.95 mm
107.95 mm
2670000 N
1580000 N
790 rpm
880 rpm
CAD
250RU93AA774R3
250 mm
520 mm
196.85 mm
196.85 mm
5470000 N
3520000 N
610 rpm
660 rpm
5.1 mm
240RIJ91R3
240 mm
390 mm
107.95 mm
107.95 mm
2670000 N
1580000 N
790 rpm
880 rpm
CAD
100RIU435OO771R3
254 mm
400.050 mm
79.38 mm
79.38 mm
1810000 N
1160000 N
790 rpm
890 rpm
5.1 mm
240RIF91R3
240 mm
390 mm
107.95 mm
107.95 mm
2670000 N
1580000 N
790 rpm
880 rpm
CAD
260RU30OC1268R3
260 mm
400 mm
104 mm
104 mm
2630000 N
1530000 N
750 rpm
830 rpm
4 mm
220RU03R3
220 mm
460 mm
88 mm
88 mm
1570000 N
1340000 N
840 rpm
970 rpm
4.1 mm
240RIT91R3
240 mm
390 mm
107.95 mm
107.95 mm
2670000 N
1580000 N
790 rpm
880 rpm
CAD
260RU92OA1175R3
260 mm
480 mm
158.75 mm
158.75 mm
4410000 N
2770000 N
640 rpm
700 rpm
5 mm
240RU30R3
240 mm
360 mm
92 mm
92 mm
2170000 N
1220000 N
840 rpm
940 rpm
2.5 mm