R8-49E3 Rotek Slewing Ring Bearings - NTN BEARING CORP.

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R8-49E3 Rotek Slewing Ring Bearings image

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Bearing Slewing Ring Cross References

Series:28000
Cone Part Number:28159
Cup Part Number:28300X
Design Units:Imperial
Bearing Weight:0.4 Kg
Cage Type:Stamped Steel
d:39.980 mm
D:76.2 mm
B - Cone Width:20.940 mm
C - Cup Width:15.494 mm
B:20.622 mm
R - Cone Backface To Clear Radius1:3.560 mm
r - Cup Backface To Clear Radius2:1.52 mm
da - Cone Frontface Backing Diameter:44.96 mm
db - Cone Backface Backing Diameter:52.07 mm
Da - Cup Frontface Backing Diameter:71.88 mm
Db - Cup Backface Backing Diameter:68.07 mm
Ab - Cage-Cone Frontface Clearance:1.8 mm
Aa - Cage-Cone Backface Clearance:1.5 mm
a - Effective Center Location3:-4.8 mm
C90 - Dynamic Radial Rating (90 million revolutions)4:3700 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5:14300 lbf
C0 - Static Radial Rating:15500 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)6:2550 lbf
K - Factor7:1.45
e - ISO Factor8:0.4
Y - ISO Factor9:1.49
G1 - Heat Generation Factor (Roller-Raceway):20.7
G2 - Heat Generation Factor (Rib-Roller End):12.5
Cg - Geometry Factor:0.0709

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NTN BEARING CORP.: Address1-2-16 Kyomachibori, Nishi-ku, Osaka-shi, Osaka 520-03653, Japan; Phone(Working Time)753-298-1258; Fax

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Stock Categories

Technical Articles

angular contact ball bearings

cylindrical roller bearings

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