 
                The Timken ® Syber ® Bearing System Designer Tool now features Smart Selection, enabling users to find the right bearing faster by filtering options based on target life and key dimensions.
A powerful software tool that combines calculators and configurators to assist you with application design, bearing selection, installation, and troubleshooting. It’s free, easy-to-use, and accessible 24/7.
Alex Waye, Timken Application Engineer, shows you how to instantly compute tangential, radial, and axial forces for better design decisions.
| Part Number | d - Bore | D - Outer Diameter | C - Inner Ring Width | B - Outer Ring Width | C0 - Static Radial Rating | C - Dynamic Radial Rating | Reference Thermal Speed Rating (Grease) | Reference Thermal Speed Rating (Oil) | R - Inner Ring "To Clear" Radius | CAD | 
|---|---|---|---|---|---|---|---|---|---|---|
| 190RN92 R3 | d - Bore N/A 190 mm | D - Outer Diameter N/A 340 mm13.3858 in | C - Inner Ring Width N/A 114.3 mm4-1/2 in | B - Outer Ring Width N/A 114.3 mm4.5000 in | C0 - Static Radial Rating N/A 2210000 N497000 lbf | C - Dynamic Radial Rating N/A 1450000 N326000 lbf | Reference Thermal Speed Rating (Grease) N/A 1000 rpm | Reference Thermal Speed Rating (Oil) N/A 1200 rpm | R - Inner Ring "To Clear" Radius N/A 3 mm0.100 in | CAD                                                    
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| NJ238EMA | d - Bore N/A 190 mm | D - Outer Diameter N/A 340 mm13.3858 in | C - Inner Ring Width N/A 55 mm2.1654 in | B - Outer Ring Width N/A 55 mm2.1654 in | C0 - Static Radial Rating N/A 960000 N216000 lbf | C - Dynamic Radial Rating N/A 777000 N175000 lbf | Reference Thermal Speed Rating (Grease) N/A 1600 rpm | Reference Thermal Speed Rating (Oil) N/A 1900 rpm | R - Inner Ring "To Clear" Radius N/A 4 mm0.160 in | CAD                                                    
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| NJ238EMAC3 | d - Bore N/A 190 mm | D - Outer Diameter N/A 340 mm13.3858 in | C - Inner Ring Width N/A 55 mm2.1654 in | B - Outer Ring Width N/A 55 mm2.1654 in | C0 - Static Radial Rating N/A 960000 N216000 lbf | C - Dynamic Radial Rating N/A 777000 N175000 lbf | Reference Thermal Speed Rating (Grease) N/A 1600 rpm | Reference Thermal Speed Rating (Oil) N/A 1900 rpm | R - Inner Ring "To Clear" Radius N/A 4 mm0.160 in | CAD                                                    
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| NU2238EMA | d - Bore N/A 190 mm | D - Outer Diameter N/A 340 mm13.3858 in | C - Inner Ring Width N/A 92 mm3.622 in | B - Outer Ring Width N/A 92 mm3.622 in | C0 - Static Radial Rating N/A 1680000 N377000 lbf | C - Dynamic Radial Rating N/A 1250000 N281000 lbf | Reference Thermal Speed Rating (Grease) N/A 1200 rpm | Reference Thermal Speed Rating (Oil) N/A 1300 rpm | R - Inner Ring "To Clear" Radius N/A 4 mm0.160 in | CAD                                                    
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| NU238EMA | d - Bore N/A 190 mm | D - Outer Diameter N/A 340 mm13.3858 in | C - Inner Ring Width N/A 55 mm2.1654 in | B - Outer Ring Width N/A 55 mm2.1654 in | C0 - Static Radial Rating N/A 960000 N216000 lbf | C - Dynamic Radial Rating N/A 777000 N175000 lbf | Reference Thermal Speed Rating (Grease) N/A 1600 rpm | Reference Thermal Speed Rating (Oil) N/A 1900 rpm | R - Inner Ring "To Clear" Radius N/A 4 mm0.160 in | CAD                                                    
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| NU238EMAC3 | d - Bore N/A 190 mm | D - Outer Diameter N/A 340 mm13.3858 in | C - Inner Ring Width N/A 55 mm2.1654 in | B - Outer Ring Width N/A 55 mm2.1654 in | C0 - Static Radial Rating N/A 960000 N216000 lbf | C - Dynamic Radial Rating N/A 777000 N175000 lbf | Reference Thermal Speed Rating (Grease) N/A 1600 rpm | Reference Thermal Speed Rating (Oil) N/A 1900 rpm | R - Inner Ring "To Clear" Radius N/A 4 mm0.160 in | CAD                                                    
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| NJ2338EMAC3 | d - Bore N/A 190 mm | D - Outer Diameter N/A 400 mm15.748 in | C - Inner Ring Width N/A 132 mm5.1969 in | B - Outer Ring Width N/A 132 mm5.1969 in | C0 - Static Radial Rating N/A 2500000 N561000 lbf | C - Dynamic Radial Rating N/A 2060000 N464000 lbf | Reference Thermal Speed Rating (Grease) N/A 1000 rpm | Reference Thermal Speed Rating (Oil) N/A 1100 rpm | R - Inner Ring "To Clear" Radius N/A 5 mm0.200 in | CAD                                                    
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| NU2338EMAC3 | d - Bore N/A 190 mm | D - Outer Diameter N/A 400 mm15.748 in | C - Inner Ring Width N/A 132 mm5.1969 in | B - Outer Ring Width N/A 132 mm5.1969 in | C0 - Static Radial Rating N/A 2500000 N561000 lbf | C - Dynamic Radial Rating N/A 2060000 N464000 lbf | Reference Thermal Speed Rating (Grease) N/A 1000 rpm | Reference Thermal Speed Rating (Oil) N/A 1100 rpm | R - Inner Ring "To Clear" Radius N/A 5 mm0.200 in | CAD                                                    
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| NU338EMA | d - Bore N/A 190 mm | D - Outer Diameter N/A 400 mm15.748 in | C - Inner Ring Width N/A 78 mm3.0709 in | B - Outer Ring Width N/A 78 mm3.0709 in | C0 - Static Radial Rating N/A 1500000 N337000 lbf | C - Dynamic Radial Rating N/A 1300000 N292000 lbf | Reference Thermal Speed Rating (Grease) N/A 1300 rpm | Reference Thermal Speed Rating (Oil) N/A 1500 rpm | R - Inner Ring "To Clear" Radius N/A 5 mm0.200 in | CAD                                                    
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| NU338EMAC3 | d - Bore N/A 190 mm | D - Outer Diameter N/A 400 mm15.748 in | C - Inner Ring Width N/A 78 mm3.0709 in | B - Outer Ring Width N/A 78 mm3.0709 in | C0 - Static Radial Rating N/A 1500000 N337000 lbf | C - Dynamic Radial Rating N/A 1300000 N292000 lbf | Reference Thermal Speed Rating (Grease) N/A 1300 rpm | Reference Thermal Speed Rating (Oil) N/A 1500 rpm | R - Inner Ring "To Clear" Radius N/A 5 mm0.200 in | CAD                                                    
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| R-3407-A | d - Bore N/A 200 mm | D - Outer Diameter N/A 279.989 mm11.0232 in | C - Inner Ring Width N/A 50 mm1.9685 in | B - Outer Ring Width N/A 50 mm1.9685 in | C0 - Static Radial Rating N/A 682000 N153000 lbf | C - Dynamic Radial Rating N/A 426000 N95800 lbf | Reference Thermal Speed Rating (Grease) N/A 1200 rpm | Reference Thermal Speed Rating (Oil) N/A 1400 rpm | R - Inner Ring "To Clear" Radius N/A 2.8 mm0.100 in | CAD                                                    
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| NUP1040MA | d - Bore N/A 200 mm | D - Outer Diameter N/A 310 mm12.2047 in | C - Inner Ring Width N/A 38.55 mm1.5177 in | B - Outer Ring Width N/A 51 mm2.0079 in | C0 - Static Radial Rating N/A 587000 N132000 lbf | C - Dynamic Radial Rating N/A 392000 N88100 lbf | Reference Thermal Speed Rating (Grease) N/A 1700 rpm | Reference Thermal Speed Rating (Oil) N/A 2000 rpm | R - Inner Ring "To Clear" Radius N/A 2.1 mm0.100 in | CAD                                                    
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| NU1040MA | d - Bore N/A 200 mm | D - Outer Diameter N/A 310 mm12.2047 in | C - Inner Ring Width N/A 51 mm2.0079 in | B - Outer Ring Width N/A 51 mm2.0079 in | C0 - Static Radial Rating N/A 602000 N135000 lbf | C - Dynamic Radial Rating N/A 445000 N100000 lbf | Reference Thermal Speed Rating (Grease) N/A 1900 rpm | Reference Thermal Speed Rating (Oil) N/A 2300 rpm | R - Inner Ring "To Clear" Radius N/A 2.1 mm0.100 in | CAD                                                    
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| NU1040MAC3 | d - Bore N/A 200 mm | D - Outer Diameter N/A 310 mm12.2047 in | C - Inner Ring Width N/A 51 mm2.0079 in | B - Outer Ring Width N/A 51 mm2.0079 in | C0 - Static Radial Rating N/A 602000 N135000 lbf | C - Dynamic Radial Rating N/A 445000 N100000 lbf | Reference Thermal Speed Rating (Grease) N/A 1900 rpm | Reference Thermal Speed Rating (Oil) N/A 2300 rpm | R - Inner Ring "To Clear" Radius N/A 2.1 mm0.100 in | CAD                                                    
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| NJ240EMA | d - Bore N/A 200 mm | D - Outer Diameter N/A 360 mm14.1732 in | C - Inner Ring Width N/A 58 mm2.2835 in | B - Outer Ring Width N/A 58 mm2.2835 in | C0 - Static Radial Rating N/A 1050000 N236000 lbf | C - Dynamic Radial Rating N/A 760000 N171000 lbf | Reference Thermal Speed Rating (Grease) N/A 1400 rpm | Reference Thermal Speed Rating (Oil) N/A 1600 rpm | R - Inner Ring "To Clear" Radius N/A 3 mm0.100 in | CAD                                                    
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| NUP2240EMA | d - Bore N/A 200 mm | D - Outer Diameter N/A 360 mm14.1732 in | C - Inner Ring Width N/A 84.075 mm3.3100 in | B - Outer Ring Width N/A 98 mm3.8583 in | C0 - Static Radial Rating N/A 1870000 N420000 lbf | C - Dynamic Radial Rating N/A 1220000 N274000 lbf | Reference Thermal Speed Rating (Grease) N/A 1000 rpm | Reference Thermal Speed Rating (Oil) N/A 1100 rpm | R - Inner Ring "To Clear" Radius N/A 3 mm0.100 in | CAD                                                    
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| NU2240EMA | d - Bore N/A 200 mm | D - Outer Diameter N/A 360 mm14.1732 in | C - Inner Ring Width N/A 98 mm3.8583 in | B - Outer Ring Width N/A 98 mm3.8583 in | C0 - Static Radial Rating N/A 1900000 N427000 lbf | C - Dynamic Radial Rating N/A 1410000 N317000 lbf | Reference Thermal Speed Rating (Grease) N/A 1100 rpm | Reference Thermal Speed Rating (Oil) N/A 1200 rpm | R - Inner Ring "To Clear" Radius N/A 3 mm0.100 in | CAD                                                    
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| NU240EMA | d - Bore N/A 200 mm | D - Outer Diameter N/A 360 mm14.1732 in | C - Inner Ring Width N/A 58 mm2.2835 in | B - Outer Ring Width N/A 58 mm2.2835 in | C0 - Static Radial Rating N/A 1080000 N243000 lbf | C - Dynamic Radial Rating N/A 870000 N196000 lbf | Reference Thermal Speed Rating (Grease) N/A 1400 rpm | Reference Thermal Speed Rating (Oil) N/A 1600 rpm | R - Inner Ring "To Clear" Radius N/A 3 mm0.100 in | CAD                                                    
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| NJ240EMAC3 | d - Bore N/A 200 mm | D - Outer Diameter N/A 360 mm14.1732 in | C - Inner Ring Width N/A 58 mm2.2835 in | B - Outer Ring Width N/A 58 mm2.2835 in | C0 - Static Radial Rating N/A 1050000 N236000 lbf | C - Dynamic Radial Rating N/A 760000 N171000 lbf | Reference Thermal Speed Rating (Grease) N/A 1400 rpm | Reference Thermal Speed Rating (Oil) N/A 1600 rpm | R - Inner Ring "To Clear" Radius N/A 3 mm0.100 in | CAD                                                    
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| NJ240EMAC4 | d - Bore N/A 200 mm | D - Outer Diameter N/A 360 mm14.1732 in | C - Inner Ring Width N/A 58 mm2.2835 in | B - Outer Ring Width N/A 58 mm2.2835 in | C0 - Static Radial Rating N/A 1050000 N236000 lbf | C - Dynamic Radial Rating N/A 760000 N171000 lbf | Reference Thermal Speed Rating (Grease) N/A 1400 rpm | Reference Thermal Speed Rating (Oil) N/A 1600 rpm | R - Inner Ring "To Clear" Radius N/A 3 mm0.100 in | CAD                                                    
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| NU240EMAC3 | d - Bore N/A 200 mm | D - Outer Diameter N/A 360 mm14.1732 in | C - Inner Ring Width N/A 58 mm2.2835 in | B - Outer Ring Width N/A 58 mm2.2835 in | C0 - Static Radial Rating N/A 1080000 N243000 lbf | C - Dynamic Radial Rating N/A 870000 N196000 lbf | Reference Thermal Speed Rating (Grease) N/A 1400 rpm | Reference Thermal Speed Rating (Oil) N/A 1600 rpm | R - Inner Ring "To Clear" Radius N/A 3 mm0.100 in | CAD                                                    
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| NU240EMAC4 | d - Bore N/A 200 mm | D - Outer Diameter N/A 360 mm14.1732 in | C - Inner Ring Width N/A 58 mm2.2835 in | B - Outer Ring Width N/A 58 mm2.2835 in | C0 - Static Radial Rating N/A 1080000 N243000 lbf | C - Dynamic Radial Rating N/A 870000 N196000 lbf | Reference Thermal Speed Rating (Grease) N/A 1400 rpm | Reference Thermal Speed Rating (Oil) N/A 1600 rpm | R - Inner Ring "To Clear" Radius N/A 3 mm0.100 in | CAD                                                    
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| NU2240EMAC3 | d - Bore N/A 200 mm | D - Outer Diameter N/A 360 mm14.1732 in | C - Inner Ring Width N/A 98 mm3.8583 in | B - Outer Ring Width N/A 98 mm3.8583 in | C0 - Static Radial Rating N/A 1900000 N427000 lbf | C - Dynamic Radial Rating N/A 1410000 N317000 lbf | Reference Thermal Speed Rating (Grease) N/A 1100 rpm | Reference Thermal Speed Rating (Oil) N/A 1200 rpm | R - Inner Ring "To Clear" Radius N/A 3 mm0.100 in | CAD                                                    
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| 200RN92 R2 | d - Bore N/A 200 mm | D - Outer Diameter N/A 360 mm14.1732 in | C - Inner Ring Width N/A 120.7 mm4.7520 in | B - Outer Ring Width N/A 120.7 mm4.7520 in | C0 - Static Radial Rating N/A 2580000 N580000 lbf | C - Dynamic Radial Rating N/A 1630000 N366000 lbf | Reference Thermal Speed Rating (Grease) N/A 940 rpm | Reference Thermal Speed Rating (Oil) N/A 1000 rpm | R - Inner Ring "To Clear" Radius N/A 4 mm0.200 in | CAD                                                    
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| NU2340EMA | d - Bore N/A 200 mm | D - Outer Diameter N/A 420 mm16.5354 in | C - Inner Ring Width N/A 138 mm5.4331 in | B - Outer Ring Width N/A 138 mm5.4331 in | C0 - Static Radial Rating N/A 2760000 N620000 lbf | C - Dynamic Radial Rating N/A 2250000 N506000 lbf | Reference Thermal Speed Rating (Grease) N/A 900 rpm | Reference Thermal Speed Rating (Oil) N/A 990 rpm | R - Inner Ring "To Clear" Radius N/A 4 mm0.200 in | CAD                                                    
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