M4-38P4 Rotek Slewing Ring Bearings - NTN BEARING CORP.

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Bearing Slewing Ring Cross References

Series:HM266400
Cone Part Number:HM266444WS
Cup Part Number:HM266410
Design Units:Imperial
Bearing Weight:77.6 Kg
Cage Type:Stamped Steel
d:377.825 mm
D:546.100 mm
B - Cone Width:104.775 mm
C - Cup Width:82.550 mm
B:104.778 mm
R - Cone Backface To Clear Radius1:6.35 mm
r - Cup Backface To Clear Radius2:6.35 mm
da - Cone Frontface Backing Diameter:403.10 mm
db - Cone Backface Backing Diameter:411.99 mm
Da - Cup Frontface Backing Diameter:521.97 mm
Db - Cup Backface Backing Diameter:506.98 mm
Ab - Cage-Cone Frontface Clearance:7.1 mm
Aa - Cage-Cone Backface Clearance:9.1 mm
a - Effective Center Location3:-7.1 mm
C90 - Dynamic Radial Rating (90 million revolutions)4:145000 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5:557000 lbf
C0 - Static Radial Rating:946000 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)6:82300 lbf
K - Factor7:1.76
e - ISO Factor8:0.33
Y - ISO Factor9:1.8
G1 - Heat Generation Factor (Roller-Raceway):4383.4
G2 - Heat Generation Factor (Rib-Roller End):278.7
Cg - Geometry Factor:0.212

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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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