4R6819 NTN ROLL NECK BEARINGS for ROLLING MILL

Brand Name: NTN
Model Number: 4R6819
Series: 29000
Cone Part Number: 29168
Cup Part Number: 29334
Design Units: Imperial
Bearing Weight: 0.5 Kg
Cage Type: Stamped Steel
d: 42.863 mm
D: 84.988 mm
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Product Details

Series 29000
Cone Part Number 29168
Cup Part Number 29334
Design Units Imperial
Bearing Weight 0.5 Kg
Cage Type Stamped Steel
d 42.863 mm
D 84.988 mm
B - Cone Width 19.164 mm
C - Cup Width 15.875 mm
B 18.999 mm
R - Cone Backface To Clear Radius1 1.520 mm
r - Cup Backface To Clear Radius2 1.52 mm
da - Cone Frontface Backing Diameter 49.02 mm
db - Cone Backface Backing Diameter 51.05 mm
Da - Cup Frontface Backing Diameter 78.00 mm
Db - Cup Backface Backing Diameter 73.91 mm
Ab - Cage-Cone Frontface Clearance 2.3 mm
Aa - Cage-Cone Backface Clearance 0.3 mm
a - Effective Center Location3 -1.3 mm
C90 - Dynamic Radial Rating (90 million revolutions)4 3640 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5 14000 lbf
C0 - Static Radial Rating 15600 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 2770 lbf
K - Factor7 1.31
e - ISO Factor8 0.44
Y - ISO Factor9 1.35
G1 - Heat Generation Factor (Roller-Raceway) 23.8
G2 - Heat Generation Factor (Rib-Roller End) 15.3
Cg - Geometry Factor 0.0766
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Phone 753-298-7821
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