45284/45220 Timken Tapered Roller Bearing 50.8x104.78x30.16mm

Timken offers the most extensive line of tapered roller bearings in the world. Tapered roller bearings consist of four interdependent components: the cone (inner ring), the cup (outer ring), the tapered rollers (rolling elements) and the cage (roller retainer). Tapered roller bearings are uniquely designed to manage both thrust and radial loads between a rotating and non-rotating member. The steeper the cup angle, the greater the ability of the bearing to handle thrust loads.

Industries:
Aerospace, agriculture, automotive, heavy truck, cement, aggregate, coal, oil and gas, construction, gear drives, machine tools, mining, paper, metals, rail and wind.

Benefits:
Enhanced performance in demanding applications.

Series
    45200
Cone Part Number
    45284
Cup Part Number
    45220
Design Unit
    Inch
Cage Material
    Stamped Steel
Dimensions
d - Bore
    2 in 50.8 mm
D - Cup Outer Diameter
    4.1250 in 104.775 mm
B - Cone Width
    1.2188 in 30.958 mm
C - Cup Width
    0.9375 in 23.813 mm
T - Bearing Width
    1.1875 in 30.163 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1
    0.25 in 6.4 mm
r - Cup Backface "To Clear" Radius2
    0.130 in 3.30 mm
da - Cone Frontface Backing Diameter
    2.44 in 62 mm
db - Cone Backface Backing Diameter
    2.87 in 73 mm
Da - Cup Frontface Backing Diameter
    3.94 in 99.10 mm
Db - Cup Backface Backing Diameter
    3.66 in 92.96 mm
Ab - Cage-Cone Frontface Clearance
    0.1 in 2.5 mm
Aa - Cage-Cone Backface Clearance
    0.07 in 1.8 mm
a - Effective Center Location3
    -0.32 in -8.1 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)4
    8930 lbf 39700 N
C1 - Dynamic Radial Rating (1 million revolutions)5
    34500 lbf 153000 N
C0 - Static Radial Rating
    42600 lbf 189000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6
    5090 lbf 22600 N
Factors
K - Factor7
    1.76
e - ISO Factor8
    0.33
Y - ISO Factor9
    1.8
Cg - Geometry Factor10
    0.0971