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 |
Locating
|
| Locking method |
Set screws
|
| Bearing housing seal type |
Radial lip seal
|
| da |
55.563 mm
|
Shaft diameter |
|---|---|---|
| d2 |
82.55 mm
|
Collar outer diameter |
| A |
61.913 mm
|
Housing width |
| A1 |
14.288 mm
|
Flange thickness |
| A2 |
34.925 mm
|
Machined face to centre line bearing |
| B |
79.375 mm
|
Inner ring width |
| J |
114.3 mm
|
Bolt distance or pitch diameter |
| L |
149.225 mm
|
Housing length |
| N |
17.463 mm
|
Bolt hole diameter |
| s |
28.575 mm
|
Inner ring centre to end |
| S |
0.794 mm
|
Centre line of locating support |
| T |
86.519 mm
|
Total width |
| GN |
1/8-27 NPT
|
Thread of grease fitting |
|---|
| Basic dynamic load rating | C |
99.6 kN
|
|---|---|---|
| Basic static load rating | C0 |
118 kN
|
| Fatigue load limit | Pu |
12.9 kN
|
| Limiting speed |
3 700 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 |
77.47 mm
|
| Axial holding force of the locking mechanism | Pa |
2.29 kN
|
| Mass bearing unit |
4.58 kg
|
| Attachment bolt diameter | G |
0.625 in
|
|---|---|---|
| Set screws |
3/8″-24 UNF-3A x 1/2″
|
|
| Number of set screws |
2
|
|
| Tightening torque for set screws |
28.246 N·m
|
|
| Grease quantity for relubrication |
5 g
|
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