Flanged roller bearing units consist of an insert bearing mounted in a cast housing that can be bolted to a machine wall or frame. In addition to being part of a unit, some flanged housings for insert bearings are available as separate components. The SKF assortment includes roller bearing units compliant with several industrial standards, meeting many requirements regarding bolt patterns and mechanisms for locking onto on the shaft.
| Metric/inch series |
Inch
|
| Bearing insert |
Spherical roller bearing
|
| Bearing position |
Non-locating
|
| Locking method |
Set screws
|
| Bearing housing seal type |
Radial lip seal
|
| da |
63.5 mm
|
Shaft diameter |
|---|---|---|
| d2 |
101.6 mm
|
Collar outer diameter |
| A |
67.469 mm
|
Housing width |
| A1 |
15.875 mm
|
Flange thickness |
| A2 |
35.719 mm
|
Machined face to centre line bearing |
| B |
85.725 mm
|
Inner ring width |
| J |
121.437 mm
|
Bolt distance or pitch diameter |
| L |
155.575 mm
|
Housing length |
| N |
17.463 mm
|
Bolt hole diameter |
| s |
31.75 mm
|
Inner ring centre to end |
| S |
0.794 mm
|
Centre line of locating support |
| T |
89.694 mm
|
Total width |
| GN |
1/8-27 NPT
|
Thread of grease fitting |
|---|
| Basic dynamic load rating | C |
148 kN
|
|---|---|---|
| Basic static load rating | C0 |
183 kN
|
| Fatigue load limit | Pu |
21.2 kN
|
| Limiting speed |
3 100 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 |
92.456 mm
|
| Axial holding force of the locking mechanism | Pa |
4 kN
|
| Mass bearing unit |
6.03 kg
|
| Attachment bolt diameter | G |
0.625 in
|
|---|---|---|
| Set screws |
1/2″-20 UNF-3A x 3/4″
|
|
| Number of set screws |
2
|
|
| Tightening torque for set screws |
70.051 N·m
|
|
| Grease quantity for relubrication |
7 g
|
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