Product Details

1.25 Inch | 31.75 Millimeter x 1.5 Inch | 38.1 Millimeter x 1.688 Inch | 42.875 Millimeter HUB CITY PB251STW X 1-1/4S Pillow Block Bearings

Brand Name HUB CITY
Model Number PB251STW X 1-1/4S
Min.Order Quantity 1 pcs
Price Negotiable

Product Features

HUB CITY PB251STW X 1-1/4S bearing Size Chart (mm/inches)

Series128000
Cone Part NumberEE128102
Cup Part Number128161
Design UnitsImperial
Bearing Weight33.5 Kg
Cage TypePin-Type
d260.350 mm
D409.981 mm
B - Cone Width67.673 mm
C - Cup Width53.975 mm
B69.853 mm
R - Cone Backface To Clear Radius13.300 mm
r - Cup Backface To Clear Radius23.30 mm
da - Cone Frontface Backing Diameter292.10 mm
db - Cone Backface Backing Diameter288.04 mm
Da - Cup Frontface Backing Diameter384.30 mm
Db - Cup Backface Backing Diameter378.97 mm
Ab - Cage-Cone Frontface Clearance3 mm
Aa - Cage-Cone Backface Clearance5.1 mm
a - Effective Center Location36.6 mm
C90 - Dynamic Radial Rating (90 million revolutions)453900 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5208000 lbf
C0 - Static Radial Rating409000 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)635600 lbf
K - Factor71.51
e - ISO Factor80.39
Y - ISO Factor91.55
G1 - Heat Generation Factor (Roller-Raceway)1727.7
G2 - Heat Generation Factor (Rib-Roller End)255.2
Cg - Geometry Factor0.163
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