NNU3148 KOYO Double-row cylindrical roller bearings

Brand Name: KOYO
Model Number: NNU3148
Series: 19000
Cone Part Number: 19138
Cup Part Number: 19269
Design Units: Imperial
Bearing Weight: 0.30 Kg
Cage Type: Stamped Steel
d: 34.976 mm
D: 68.263 mm
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Product Details

Series 19000
Cone Part Number 19138
Cup Part Number 19269
Design Units Imperial
Bearing Weight 0.30 Kg
Cage Type Stamped Steel
d 34.976 mm
D 68.263 mm
B - Cone Width 16.520 mm
C - Cup Width 16.030 mm
B 19.997 mm
R - Cone Backface To Clear Radius1 1.520 mm
r - Cup Backface To Clear Radius2 1.52 mm
da - Cone Frontface Backing Diameter 40.39 mm
db - Cone Backface Backing Diameter 42.42 mm
Da - Cup Frontface Backing Diameter 66.00 mm
Db - Cup Backface Backing Diameter 59.94 mm
Ab - Cage-Cone Frontface Clearance 2.3 mm
Aa - Cage-Cone Backface Clearance 0.8 mm
a - Effective Center Location3 -1.5 mm
C90 - Dynamic Radial Rating (90 million revolutions)4 2960 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5 11400 lbf
C0 - Static Radial Rating 13000 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 2250 lbf
K - Factor7 1.31
e - ISO Factor8 0.44
Y - ISO Factor9 1.35
G1 - Heat Generation Factor (Roller-Raceway) 17.5
G2 - Heat Generation Factor (Rib-Roller End) 11.5
Cg - Geometry Factor 0.0694
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Phone 409-782-6227
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