Square flanged roller bearing units consist of a tapered 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. Set screw units use a locking collar design to firmly secure the bearing inner ring to the shaft. Mounting is quick and easy.
| Metric/inch series |
Inch
|
| Bearing insert |
Tapered roller bearing
|
| Bearing position |
Locating
|
| Locking method |
Set screws
|
| Bearing housing seal type |
Heavy-duty seal
|
| da |
30.163 mm
|
Shaft diameter |
|---|---|---|
| d2 |
57.15 mm
|
Collar outer diameter |
| A |
59.531 mm
|
Housing width |
| A1 |
25.4 mm
|
Flange thickness |
| A2 |
36.513 mm
|
Machined face to centre line bearing |
| B |
69.85 mm
|
Inner ring width |
| J |
73.025 mm
|
Bolt distance or pitch diameter |
| L |
95.25 mm
|
Housing length |
| N |
11.113 mm
|
Bolt hole diameter |
| s |
34.925 mm
|
Inner ring centre to end |
| T |
71.438 mm
|
Total width |
| GN |
1/8-27 NPT
|
Thread of grease fitting |
|---|
| Basic dynamic load rating | C |
54.3 kN
|
|---|---|---|
| Basic static load rating | C0 |
64 kN
|
| Fatigue load limit | Pu |
6.7 kN
|
| Comparative radial load rating | CF |
14.6 kN
|
| Limiting speed |
4 300 r/min
|
|
| Limiting value | e |
0.48
|
| Calculation factor | Y1 |
1.4
|
| Calculation factor | Y2 |
2.1
|
| Calculation factor | Y0 |
1.4
|
| Bearing mean diameter | dm |
45.3 mm
|
| Axial holding force of the locking mechanism | Pa |
11.7 kN
|
| Mass bearing unit |
1.86 kg
|
| Attachment bolt diameter | G |
0.375 in
|
|---|---|---|
| Set screws |
5/16-18
|
|
| Number of set screws |
4
|
|
| Tightening torque for set screws |
17.513 N·m
|
|
| Grease quantity for relubrication |
2.8 g
|
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