NA749/742D TIMKEN

Brand - TIMKEN
Item Number - NA749/742D TIMKEN
Also Known As - NA749 - 742D
Category - Double Row Tapered Roller Bearing (TNA Type)
Bore Diameter (d) mm - 82.55
Bore Diameter (d) inch - 3.25
Outer Diameter (D) mm - 155.575
Outer Diameter (D) inch - 6.125
Width (T) mm - 101.6
Width (T) inch - 4
Double Outer Ring Width (C) mm - 85.725
Double Outer Ring Width (C) inch - 3.375
Dynamic Load Rating (C1) N - 656000
Dynamic Load Rating (C1) lbf - 147000
Factor (e) - 0.33
Factor (Y1) - 2.08
Factor (Y2) - 3.09
Dynamic Radial Rating (90 million revolutions) (C90) N - 97600
Dynamic Radial Rating (90 million revolutions) (C90) lbf - 21900
Basic Dynamic Thrust Load Rating (90 Million Revolution) (Ca90) N - 54400
Basic Dynamic Thrust Load Rating (90 Million Revolution) (Ca90) lbf - 12200
Dynamic Radial Rating (Two-Row, 90 million revolutions) (C90(2)) N - 170000
Dynamic Radial Rating (Two-Row, 90 million revolutions) (C90(2)) lbf - 38200
Ratio of Basic Dynamic Radial Load Rating to Basic Dynamic Thrust Rating (K) - 1.8
Maximum Shaft Fillet Radius (R) mm - 3.5
Maximum Shaft Fillet Radius (R) inch - 0.14
Backing Shoulder Diameter (db) mm - 99
Backing Shoulder Diameter (db) inch - 3.9
Maximum Housing Fillet Radius (r) mm - 1.5
Maximum Housing Fillet Radius (r) inch - 0.06
Cup Frontface Backing Diameter (Da) mm - 143
Cup Frontface Backing Diameter (Da) inch - 5.63
Weight (kg) - 8.17
Weight (lbs) - 18.01
Inner Part Number - NA749
Outer Part Number - 742D
TNA - Non-Adjustable, Double-Row Bearing

** Images are for representation purposes only