Cylindrical Roller Radial Bearings – Two-Row

**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 Bore d O.D.D Width B DUR/DOR F/E Static Load Rating Co Dynamic Load Rating C1 Thermal Speed Ratings - Oil Thermal Speed Ratings - Grease
NNU49/560MAW33
560 mm
750 mm
190 mm
623 mm
8780000 N
3590000 N
330 rpm
300 rpm
NNU49/600MAW33
600 mm
800 mm
200 mm
666 mm
10120000 N
4040000 N
290 rpm
270 rpm
NNU49/630MAW33
630.000 mm
850 mm
218 mm
704 mm
11520000 N
4570000 N
270 rpm
250 rpm
NNU49/670MAW33
670 mm
900 mm
230 mm
738 mm
13460000 N
5430000 N
240 rpm
230 rpm
NNU40/670MAW33
670 mm
980 mm
308 mm
744 mm
18840000 N
9740000 N
210 rpm
200 rpm
NNU49/710MAW33
710 mm
950 mm
243 mm
782 mm
14660000 N
6310000 N
220 rpm
210 rpm
NNU49/750MAW33
750 mm
1000 mm
250 mm
831 mm
16480000 N
6230000 N
200 rpm
190 rpm
NNU49/800MAW33
800 mm
1060.000 mm
258 mm
880 mm
17390000 N
7070000 N
190 rpm
180 rpm
NNU4996MAW33
480 mm
650 mm
170 mm
534 mm
6160000 N
2680000 N
430 rpm
390 rpm
NNU49/850MAW33
850 mm
1120 mm
272 mm
939 mm
17900000 N
6810000 N
190 rpm
170 rpm
NNU4096MAW33
480 mm
700 mm
218 mm
533 mm
9730000 N
5090000 N
350 rpm
330 rpm
NNU49/900MAW33
900 mm
1180 mm
280 mm
986 mm
20650000 N
7790000 N
160 rpm
150 rpm
NNU4196MAW33
480 mm
790 mm
308 mm
557 mm
14260000 N
8190000 N
310 rpm
290 rpm
NNU49/500MAW33
500 mm
670 mm
170 mm
554 mm
6280000 N
2690000 N
420 rpm
380 rpm
NNU49/500MAW33C3
500 mm
670 mm
170 mm
554 mm
6280000 N
2690000 N
420 rpm
380 rpm
NNU40/500MAW33
500 mm
720 mm
218 mm
553 mm
10560000 N
5550000 N
330 rpm
310 rpm
NNU49/530MAW33
530 mm
710 mm
180 mm
588 mm
8180000 N
3360000 N
350 rpm
320 rpm
NNU40/530MAW33
530 mm
780 mm
250 mm
591 mm
12160000 N
6330000 N
300 rpm
280 rpm
NNU4930MAW33
150 mm
210 mm
60 mm
168.5 mm
668000 N
374000 N
2100 rpm
1800 rpm
NNU4160MAW33
300 mm
500 mm
200 mm
351 mm
6140000 N
3780000 N
600 rpm
560 rpm