Tapered Roller Bearings - TNA (Tapered Double, non-adjustable) Imperial Timken NA438 - 432D
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Описание
NA438 Specifications Cone Part Number NA438 Cup Part Number 432D Design Unit Inch Dimensions d - Bore 1 3/4 in D - Cup Outer Diameter 3.7500 in T - Bearing Width across Cones 2.4376 in C - Double Cup Width 2.0000 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 2.24 in Da - Cup Frontface Backing Diameter 3.46 in Basic Load Ratings C90 - Dynamic Radial Rating (90 million revolutions)3 7400 lbf C1 - Dynamic Radial Rating (1 million revolutions)4 49700 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)5 3600 lbf C90(2)- Dynamic Radial Rating (Two-Row, 90 million revolutions)6 12900 lbf Factors K - Factor7 2.05 e - ISO Factor8 0.28 Y1 - ISO Factor9 2.37 Y2 - ISO Factor10 3.53