68FC45250BW KOYO Four-row cylindrical roller bearings - TIMKEN BEARING MFG.CORP

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68FC45250BW KOYO Four-row cylindrical roller bearings image

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68FC45250BW KOYO Four-row cylindrical roller bearings Product Description

Series:129000
Cone Part Number:EE129120X
Cup Part Number:129174
Design Units:Imperial
Bearing Weight:33.6 Kg
Cage Type:Stamped Steel
d:304.8 mm
D:439.948 mm
B - Cone Width:76.992 mm
C - Cup Width:53.975 mm
B:76.203 mm
R - Cone Backface To Clear Radius1:6.35 mm
r - Cup Backface To Clear Radius2:4.83 mm
da - Cone Frontface Backing Diameter:327.91 mm
db - Cone Backface Backing Diameter:334.01 mm
Da - Cup Frontface Backing Diameter:411.50 mm
Db - Cup Backface Backing Diameter:406.91 mm
Ab - Cage-Cone Frontface Clearance:-0.5 mm
Aa - Cage-Cone Backface Clearance:14.2 mm
a - Effective Center Location3:7.4 mm
C90 - Dynamic Radial Rating (90 million revolutions)4:52200 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5:201000 lbf
C0 - Static Radial Rating:401000 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)6:37200 lbf
K - Factor7:1.4
e - ISO Factor8:0.42
Y - ISO Factor9:1.44
G1 - Heat Generation Factor (Roller-Raceway):1882.6
G2 - Heat Generation Factor (Rib-Roller End):272.9
Cg - Geometry Factor:0.171

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TIMKEN BEARING MFG.CORP: Address346 North Bower Road, Macomb, IL 61336-2501 U.S.A.; Phone(Working Time)409-782-6227; Fax

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