F4B 303-SRB-CRESquare flanged roller bearing unit with SKF ConCentra locking, inch series

SKU: F4B 303-SRB-CRESquare flanged roller bearing unit with SKF ConCentra locking, inch series

Square flanged roller bearing units consist of a spherical roller bearing mounted in a cast iron housing that can be bolted to a machine wall. They are robust, ready-to-mount units that are assembled, lubricated and sealed at the factory for maximum service life. The simple installation, easy alignment and reliable locking technology of SKF ConCentra units contribute to a smooth operation.

ID:120354

Metric/inch series
Inch
Bearing insert
Spherical roller bearing
Bearing position
Non-locating
Locking method
SKF ConCentra
Bearing housing seal type
Radial lip seal

Dimensions - F4B 303-SRB-CREDimensions - F4B 303-SRB-CRE

Dimensions

da
80.963 mm
Shaft diameter
d2
119.99 mm
Collar outer diameter
A
81.756 mm
Housing width
A1
23.813 mm
Flange thickness
A2
46.038 mm
Machined face to centre line bearing
B
86.004 mm
Inner ring width
J
170.663 mm
Bolt distance or pitch diameter
L
209.55 mm
Housing length
N
20.638 mm
Bolt hole diameter
s
44.552 mm
Inner ring centre to end
S
0.794 mm
Centre line of locating support
T
86.519 mm
Total width
Grease fitting
GN
1/8-27 NPT
Thread of grease fitting

Calculation data

Basic dynamic load rating C
325 kN
Basic static load rating C0
375 kN
Fatigue load limit Pu
39 kN
Limiting speed
2 100 r/min
Limiting value e
0.24
Calculation factor Y1
2.8
Calculation factor Y2
4.2
Calculation factor Y0
2.8
Bearing mean diameter dm
124.968 mm
Axial holding force of the locking mechanism Pa
34.9 kN

Mass

Mass bearing unit
12.6 kg

Mounting information

Attachment bolt diameter G
0.75 in
Set screws
M6-1 x 16mm
Number of set screws
7
Tightening torque for set screws
7.909 N·m
Grease quantity for relubrication
13 g

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