KOYO MK681 needle roller bearings - NTN Bearing de Mexico, S.A.

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KOYO MK681 needle roller bearings image

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KOYO MK681 needle roller bearings Dimensions

Series:M252300
Cone Part Number:M252330X
Cup Part Number:M252310
Design Units:Imperial
Bearing Weight:33.70 Kg
Cage Type:Stamped Steel
d:234.95 mm
D:381.000 mm
B - Cone Width:74.613 mm
C - Cup Width:57.150 mm
B:74.610 mm
R - Cone Backface To Clear Radius1:6.35 mm
r - Cup Backface To Clear Radius2:3.30 mm
da - Cone Frontface Backing Diameter:261.87 mm
db - Cone Backface Backing Diameter:272.03 mm
Da - Cup Frontface Backing Diameter:364.00 mm
Db - Cup Backface Backing Diameter:356.11 mm
Ab - Cage-Cone Frontface Clearance:4.8 mm
Aa - Cage-Cone Backface Clearance:7.6 mm
a - Effective Center Location3:-6.6 mm
C90 - Dynamic Radial Rating (90 million revolutions)4:73200 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5:283000 lbf
C0 - Static Radial Rating:455000 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)6:41700 lbf
K - Factor7:1.76
e - ISO Factor8:0.33
Y - ISO Factor9:1.8
G1 - Heat Generation Factor (Roller-Raceway):1839.2
G2 - Heat Generation Factor (Rib-Roller End):226.1
Cg - Geometry Factor:0.159

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NTN Bearing de Mexico, S.A.: AddressEmilio Cardenas No.158 Apdo.124, C.P.54030, Tlalnepantla, Edo.de México, Mexico; Phone(Working Time)5390-5247; Fax

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Stock Categories

Technical Articles

angular contact ball bearings

cylindrical roller bearings

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