Tapered Roller Bearings - TNA (Tapered Double, non-adjustable) Imperial Timken NA495A - 493D
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Описание
NA495A Specifications Cone Part Number NA495A Cup Part Number 493D Related Assembly Number(s) NA495A-90039 Design Unit Inch Dimensions d - Bore 3 in D - Cup Outer Diameter 5.3750 in T - Bearing Width across Cones 2.75 in C - Double Cup Width 2.1250 in Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius1 0.14 in r - Cup Backface "To Clear" Radius2 0.030 in db - Cone Backface Backing Diameter 3.62 in Da - Cup Frontface Backing Diameter 5.16 in Basic Load Ratings C90 - Dynamic Radial Rating (90 million revolutions)3 9000 lbf C1 - Dynamic Radial Rating (1 million revolutions)4 60500 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)5 6850 lbf C90(2)- Dynamic Radial Rating (Two-Row, 90 million revolutions)6 15700 lbf Factors K - Factor7 1.31 e - ISO Factor8 0.44 Y1 - ISO Factor9 1.52 Y2 - ISO Factor10 2.26