Tapered Roller Bearings - TNA (Tapered Double, non-adjustable) Imperial Timken NA476 - 472D
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Описание
NA476 Specifications Cone Part Number NA476 Cup Part Number 472D Related Assembly Number(s) NA476-90025 Design Unit Inch Dimensions d - Bore 2.3622 in D - Cup Outer Diameter 4.7244 in T - Bearing Width across Cones 2.5626 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 2.99 in Da - Cup Frontface Backing Diameter 4.49 in Basic Load Ratings C90 - Dynamic Radial Rating (90 million revolutions)3 8360 lbf C1 - Dynamic Radial Rating (1 million revolutions)4 56100 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)5 5500 lbf C90(2)- Dynamic Radial Rating (Two-Row, 90 million revolutions)6 14600 lbf Factors K - Factor7 1.52 e - ISO Factor8 0.38 Y1 - ISO Factor9 1.75 Y2 - ISO Factor10 2.61