Tapered Roller Bearings - TNA (Tapered Double, non-adjustable) Imperial Timken NA71450 - 71751D
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Описание
NA71450 Specifications Cone Part Number NA71450 Cup Part Number 71751D Related Assembly Number(s) NA71450-90066 Design Unit Inch Dimensions d - Bore 4 1/2 in D - Cup Outer Diameter 7.5 in T - Bearing Width across Cones 4.1875 in C - Double Cup Width 3.1875 in Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius1 0.14 in r - Cup Backface "To Clear" Radius2 0.06 in db - Cone Backface Backing Diameter 5.2 in Da - Cup Frontface Backing Diameter 7.17 in Basic Load Ratings C90 - Dynamic Radial Rating (90 million revolutions)3 21200 lbf C1 - Dynamic Radial Rating (1 million revolutions)4 142000 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)5 15100 lbf C90(2)- Dynamic Radial Rating (Two-Row, 90 million revolutions)6 36900 lbf Factors K - Factor7 1.40 e - ISO Factor8 0.42 Y1 - ISO Factor9 1.62 Y2 - ISO Factor10 2.42