3NC6312ZZ KOYO 3NC Hybrid-Ceramic Ball Bearing

Brand Name:KOYO
Model Number:3NC6312ZZ
Series:780000
Cone Part Number:EE780688
Design Units:Imperial
Cage Type:Pin-Type
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1:343000 lbf
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2:88900 lbf
d:6.8750 in
B - Cone Width:2.3750 in
PDF 3NC6312ZZ

Product Details

Series780000
Cone Part NumberEE780688
Design UnitsImperial
Cage TypePin-Type
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1343000 lbf
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)288900 lbf
d6.8750 in
B - Cone Width2.3750 in
R - Cone Backface To Clear Radius30.190 in
da - Cone Frontface Backing Diameter8.11 in
db - Cone Backface Backing Diameter8.07 in
Ab - Cage-Cone Frontface Clearance0.26 in
Aa - Cage-Cone Backface Clearance0.27 in
a - Effective Center Location4-0.01 in
C90 - Dynamic Radial Rating (90 million revolutions)551100 lbf
C1 - Dynamic Radial Rating (1 million revolutions)6197000 lbf
C0 - Static Radial Rating243000 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)734900 lbf
K - Factor81.46
G1 - Heat Generation Factor (Roller-Raceway)646.5
G2 - Heat Generation Factor (Rib-Roller End)79.5
Cg - Geometry Factor0.118
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Company Profile

Phone 722-298-7405
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