NNUB4920-8 TIMKEN Double row cylindrical roller bearings

Brand Name:TIMKEN
Model Number:NNUB4920-8
Cone Part Number:M272749DW
Design Units:Imperial
Cage Type:Pin-Type
db - Cone Backface Backing Diameter:20.08 in
C1 - Dynamic Radial Rating (1 million revolutions)1:839000 lbf
C0 - Static Radial Rating:1660000 lbf
d:18.8750 in

Product Details

Cone Part NumberM272749DW
Design UnitsImperial
Cage TypePin-Type
db - Cone Backface Backing Diameter20.08 in
C1 - Dynamic Radial Rating (1 million revolutions)1839000 lbf
C0 - Static Radial Rating1660000 lbf
d18.8750 in
B - Double Cone Width9.3750 in
R - Cone Frontface To Clear Radius20.130 in
da - Cone Frontface Backing Diameter20.08 in
Ab - Cage-Cone Frontface Clearance0.41 in
C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3218000 lbf
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)41460000 lbf
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5379000 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)6124000 lbf
K - Factor71.76
G1 - Heat Generation Factor (Roller-Raceway)88110
G2 - Heat Generation Factor (Rib-Roller End)508
Cg - Geometry Factor90.26
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Company Profile

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