Aurora Bearing Company
Aurora Bearing Company
901 Aucutt Rd.
Montgomery, IL 60538
Phone: 630.859.2030 • Fax: 630.859.0971
Email: customersupport@aurorabearing.com • Website: www.aurorabearing.com
Print Back
timken-TNA-top-angle-view
Unit of Measure
1 2 3 

Part Number

d - Bore

D - Cup Outer Diameter

T - Bearing Width across Cones

C - Double Cup Width

C1 - Dynamic Radial Rating (1 million revolutions)

CAD

NA780 - 774CD N/A 4 in101.600 mm N/A 7-1/8 in180.975 mm N/A 4.125 in104.775 mm N/A 3.3750 in85.725 mm N/A 135000 lbf603000 N N/A CAD Icon (for items table)
NA861 - 854D N/A 4 in101.600 mm N/A 7.5 in190.5 mm N/A 5 in127 mm N/A 4.0000 in101.600 mm N/A 179000 lbf797000 N N/A CAD Icon (for items table)
HH221449NA - HH221410D N/A 4 in101.600 mm N/A 7.5 in190.5 mm N/A 5 in127 mm N/A 4.1250 in104.775 mm N/A 209000 lbf929000 N N/A CAD Icon (for items table)
NA782 - 774CD N/A 4.1250 in104.775 mm N/A 7-1/8 in180.975 mm N/A 4.125 in104.775 mm N/A 3.3750 in85.725 mm N/A 135000 lbf603000 N N/A CAD Icon (for items table)
NA71450 - 71751D N/A 4 1/2 in114.300 mm N/A 7.5 in190.5 mm N/A 4.1875 in106.362 mm N/A 3.1875 in80.963 mm N/A 142000 lbf633000 N N/A CAD Icon (for items table)
NA97450 - 97901D N/A 4 1/2 in114.300 mm N/A 9 in228.600 mm N/A 4.5625 in115.888 mm N/A 3.3125 in84.138 mm N/A 147000 lbf655000 N N/A CAD Icon (for items table)
HM926740NA - HM926710CD N/A 4 1/2 in114.300 mm N/A 9 in228.600 mm N/A 4.5625 in115.888 mm N/A 3.3125 in84.138 mm N/A 194000 lbf862000 N N/A CAD Icon (for items table)
NA48291 - 48220D N/A 5 in127 mm N/A 7.1875 in182.563 mm N/A 3.375 in85.725 mm N/A 2.875 in73.025 mm N/A 105000 lbf466000 N N/A CAD Icon (for items table)
NA48385 - 48320D N/A 5 1/4 in133.350 mm N/A 7.5 in190.5 mm N/A 3.375 in85.725 mm N/A 2.875 in73.025 mm N/A 111000 lbf492000 N N/A CAD Icon (for items table)
NA82576 - 82932D N/A 5.7500 in146.050 mm N/A 9.3125 in236.538 mm N/A 5.1875 in131.762 mm N/A 4.1875 in106.363 mm N/A 202000 lbf897000 N N/A CAD Icon (for items table)
HM231140NA - HM231116D N/A 5.7500 in146.050 mm N/A 9.5 in241.3 mm N/A 5.1875 in131.762 mm N/A 4.1875 in106.363 mm N/A 234000 lbf1040000 N N/A CAD Icon (for items table)
NA82587 - 82932D N/A 5 7/8 in149.225 mm N/A 9.3125 in236.538 mm N/A 5.1875 in131.762 mm N/A 4.1875 in106.363 mm N/A 202000 lbf897000 N N/A CAD Icon (for items table)
HM231149NA - HM231116D N/A 5 7/8 in149.225 mm N/A 9.5 in241.3 mm N/A 5.1875 in131.762 mm N/A 4.1875 in106.363 mm N/A 234000 lbf1040000 N N/A CAD Icon (for items table)
NA99600 - 99102CD N/A 6 in152.400 mm N/A 10.00 in254.000 mm N/A 5.625 in142.875 mm N/A 4.375 in111.125 mm N/A 258000 lbf1150000 N N/A CAD Icon (for items table)
NA94650 - 94118D N/A 6 1/2 in165.1 mm N/A 11.7500 in298.450 mm N/A 5.625 in142.875 mm N/A 4.375 in111.125 mm N/A 258000 lbf1150000 N N/A CAD Icon (for items table)
NA87700 - 87112D N/A 7 in177.800 mm N/A 11.1250 in282.575 mm N/A 4.25 in107.95 mm N/A 3.1250 in79.375 mm N/A 168000 lbf748000 N N/A CAD Icon (for items table)
NA94700 - 94117D N/A 7 in177.800 mm N/A 11.7500 in298.450 mm N/A 5.625 in142.875 mm N/A 5.5000 in139.700 mm N/A 258000 lbf1150000 N N/A CAD Icon (for items table)
NA94700 - 94118D N/A 7 in177.800 mm N/A 11.7500 in298.450 mm N/A 5.625 in142.875 mm N/A 4.375 in111.125 mm N/A 258000 lbf1150000 N N/A CAD Icon (for items table)
NA537075 - 537103D N/A 7.5 in190.5 mm N/A 10.25 in260.350 mm N/A 2.625 in66.675 mm N/A 2.0000 in50.800 mm N/A 92100 lbf410000 N N/A CAD Icon (for items table)
NA132083 - 132126D N/A 8 in203.2 mm N/A 12.5000 in317.500 mm N/A 4.75 in120.65 mm N/A 3.5000 in88.900 mm N/A 207000 lbf919000 N N/A CAD Icon (for items table)
HM252343NA - HM252311D N/A 10 in254 mm N/A 16.6250 in422.275 mm N/A 6.8125 in173.038 mm N/A 5.0625 in128.588 mm N/A 587000 lbf2610000 N N/A CAD Icon (for items table)
HM252344NA - HM252315CD N/A 10 in254 mm N/A 16.9970 in431.724 mm N/A 6.8125 in173.038 mm N/A 5.0625 in128.588 mm N/A 605000 lbf2690000 N N/A CAD Icon (for items table)
HM252343NA - HM252315CD N/A 10 in254 mm N/A 16.9970 in431.724 mm N/A 6.8125 in173.038 mm N/A 5.0625 in128.588 mm N/A 587000 lbf2610000 N N/A CAD Icon (for items table)
HM252349NA - HM252311D N/A 10.2500 in260.350 mm N/A 16.6250 in422.275 mm N/A 6.8125 in173.038 mm N/A 5.0625 in128.588 mm N/A 605000 lbf2690000 N N/A CAD Icon (for items table)
HM252348NA - HM252311D N/A 10.2500 in260.350 mm N/A 16.6250 in422.275 mm N/A 6.8125 in173.038 mm N/A 5.0625 in128.588 mm N/A 587000 lbf2610000 N N/A CAD Icon (for items table)
HM252349NA - HM252315CD N/A 10.2500 in260.350 mm N/A 16.9970 in431.724 mm N/A 6.8125 in173.038 mm N/A 5.0625 in128.588 mm N/A 605000 lbf2690000 N N/A CAD Icon (for items table)
HM252348NA - HM252315CD N/A 10.2500 in260.350 mm N/A 16.9970 in431.724 mm N/A 6.8125 in173.038 mm N/A 5.0625 in128.588 mm N/A 587000 lbf2610000 N N/A CAD Icon (for items table)
NA329116 - 329173CD N/A 11.8420 in300.787 mm N/A 17.246 in438.048 mm N/A 6.3750 in161.925 mm N/A 4.875 in123.825 mm N/A 422000 lbf1880000 N N/A CAD Icon (for items table)
NA329115 - 329173CD N/A 11.8420 in300.787 mm N/A 17.246 in438.048 mm N/A 6.3750 in161.925 mm N/A 4.875 in123.825 mm N/A 432000 lbf1920000 N N/A CAD Icon (for items table)
NA329116 - 329176D N/A 11.8420 in300.787 mm N/A 17.5 in444.5 mm N/A 6.3750 in161.925 mm N/A 6.375 in161.925 mm N/A 422000 lbf1880000 N N/A CAD Icon (for items table)
NA329120 - 329173CD N/A 12 in304.8 mm N/A 17.246 in438.048 mm N/A 6.3750 in161.925 mm N/A 4.875 in123.825 mm N/A 422000 lbf1880000 N N/A CAD Icon (for items table)
NA329121 - 329173CD N/A 12 in304.8 mm N/A 17.246 in438.048 mm N/A 6.3750 in161.925 mm N/A 4.875 in123.825 mm N/A 432000 lbf1920000 N N/A CAD Icon (for items table)
NA231400 - 232026D N/A 14 in355.6 mm N/A 20.2500 in514.350 mm N/A 5.75 in146.05 mm N/A 4.2500 in107.950 mm N/A 412000 lbf1830000 N N/A CAD Icon (for items table)
NA285160 - 285228D N/A 16.0000 in406.400 mm N/A 22.6250 in574.675 mm N/A 6.1875 in157.162 mm N/A 4.1875 in106.363 mm N/A 434000 lbf1930000 N N/A CAD Icon (for items table)
NA26118SW - 26284D N/A 1.1806 in29.987 mm N/A 2.8336 in71.973 mm N/A 1.6835 in42.76 mm N/A 1.4375 in36.513 mm N/A 27300 lbf121000 N N/A CAD Icon (for items table)
NA438SW - 432D N/A 1 3/4 in44.45 mm N/A 3.7500 in95.250 mm N/A 2.4376 in61.915 mm N/A 2.0000 in50.800 mm N/A 49700 lbf221000 N N/A CAD Icon (for items table)
NA3780SW - 3729D N/A 2 in50.80 mm N/A 3.6718 in93.264 mm N/A 2.5625 in65.088 mm N/A 2.0625 in52.388 mm N/A 47800 lbf213000 N N/A CAD Icon (for items table)
NA455SW - 452D N/A 2 in50.80 mm N/A 4.25 in107.95 mm N/A 2.5626 in65.090 mm N/A 2.1250 in53.975 mm N/A 53100 lbf236000 N N/A CAD Icon (for items table)
NA558SW - 552D N/A 2 3/8 in60.325 mm N/A 4-7/8 in123.825 mm N/A 3.125 in79.375 mm N/A 2.5 in63.5 mm N/A 74700 lbf332000 N N/A CAD Icon (for items table)
NA643SW - 632D N/A 2 3/4 in69.850 mm N/A 5.3750 in136.525 mm N/A 3.75 in95.25 mm N/A 3 in76.2 mm N/A 91200 lbf406000 N N/A CAD Icon (for items table)
NA484SW - 472D N/A 2.7559 in70 mm N/A 4.7244 in120 mm N/A 2.5626 in65.090 mm N/A 2.1250 in53.975 mm N/A 56100 lbf250000 N N/A CAD Icon (for items table)
NA495SW - 493D N/A 3 in76.2 mm N/A 5.3750 in136.525 mm N/A 2.75 in69.85 mm N/A 2.1250 in53.975 mm N/A 60500 lbf269000 N N/A CAD Icon (for items table)
NA659SW - 654D N/A 3 in76.2 mm N/A 6 in152.4 mm N/A 3.75 in95.25 mm N/A 3 in76.2 mm N/A 96700 lbf430000 N N/A CAD Icon (for items table)
NA497SW - 493D N/A 3.3750 in85.725 mm N/A 5.3750 in136.525 mm N/A 2.875 in73.025 mm N/A 2.1250 in53.975 mm N/A 57100 lbf254000 N N/A CAD Icon (for items table)
NA593SW - 592D N/A 3 1/2 in88.900 mm N/A 6 in152.4 mm N/A 3.25 in82.55 mm N/A 2.5 in63.5 mm N/A 84600 lbf376000 N N/A CAD Icon (for items table)
NA759SW - 752D N/A 3 1/2 in88.900 mm N/A 6-3/8 in161.925 mm N/A 4.125 in104.775 mm N/A 3.3750 in85.725 mm N/A 128000 lbf570000 N N/A CAD Icon (for items table)
NA776SW - 773D N/A 3 3/4 in95.250 mm N/A 7.0866 in180 mm N/A 4.125 in104.775 mm N/A 3.3750 in85.725 mm N/A 135000 lbf603000 N N/A CAD Icon (for items table)
NA776SW - 774D N/A 3 3/4 in95.250 mm N/A 7-1/8 in180.975 mm N/A 4.125 in104.775 mm N/A 3.3750 in85.725 mm N/A 135000 lbf603000 N N/A CAD Icon (for items table)
NA691SW - 672D N/A 4 in101.600 mm N/A 6.625 in168.275 mm N/A 3.625 in92.075 mm N/A 2.75 in69.85 mm N/A 104000 lbf461000 N N/A CAD Icon (for items table)
L163149NW - L163110CD N/A 14 in355.6 mm N/A 17.5 in444.5 mm N/A 5.375 in136.525 mm N/A 4.375 in111.125 mm N/A 287000 lbf1280000 N N/A CAD Icon (for items table)
Unit of Measure
1 2 3