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.
| Metric/inch series |
Metric
|
| Bearing insert |
Spherical roller bearing
|
| Bearing position |
Locating
|
| Locking method |
SKF ConCentra
|
| Bearing housing seal type |
Radial lip seal
|
| da |
75 mm
|
Shaft diameter |
|---|---|---|
| d2 |
101 mm
|
Collar outer diameter |
| A |
82 mm
|
Housing width |
| A1 |
25 mm
|
Flange thickness |
| A2 |
42.8 mm
|
Machined face to centre line bearing |
| A3 |
6 mm
|
Centring bore depth |
| B |
72 mm
|
Inner ring width |
| Dc |
170 mm
|
Centring bore diameter |
| J |
170 mm
|
Distance of attachment bolts |
| L |
210 mm
|
Housing length |
| N |
19 mm
|
Bolt hole diameter |
| T |
81.3 mm
|
Total width |
| A4 |
80 mm
|
Distance bearing centre line to end cover |
|---|---|---|
| ba |
max. 70 mm
|
Distance bearing centre line to shaft end |
| ba |
min. 38 mm
|
Distance bearing centre line to shaft end |
| J5 |
93 mm
|
Distance dowel pins |
|---|---|---|
| J6 |
63 mm
|
Distance dowel pins |
| N4 |
max. 8 mm
|
Pin hole diameter |
| Basic dynamic load rating | C |
212 kN
|
|---|---|---|
| Basic static load rating | C0 |
240 kN
|
| Fatigue load limit | Pu |
26.5 kN
|
| Limiting speed |
2 500 r/min
|
|
| Limiting value | e |
0.22
|
| Calculation factor | Y1 |
3
|
| Calculation factor | Y2 |
4.6
|
| Calculation factor | Y0 |
2.8
|
| Bearing mean diameter | dm |
102.5 mm
|
| Axial holding force of the locking mechanism | Pa |
25 kN
|
| P1 |
160 kN
|
Breaking load |
|---|---|---|
| P2 |
155 kN
|
Breaking load |
| P3 |
415 kN
|
Breaking load |
| Mass bearing unit |
12 kg
|
| Attachment bolt diameter | G |
16 mm
|
|---|---|---|
| Tightening torque for attachment bolts |
200 N·m
|
|
| Set screws |
M6
|
|
| Number of set screws |
5
|
|
| Tightening torque for set screws |
8 N·m
|
|
| Grease quantity for relubrication |
8 g
|
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