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 |
Tapered roller bearing
|
| Bearing position |
Locating
|
| Locking method |
Set screws
|
| Bearing housing seal type |
Heavy-duty seal
|
| da |
110 mm
|
Shaft diameter |
|---|---|---|
| d2 |
155.575 mm
|
Collar outside diameter |
| Da |
260.35 mm
|
Hub diameter |
| A |
117.475 mm
|
Housing height |
| A1 |
25.4 mm
|
Housing flange height |
| A2 |
9.525 mm
|
Centre line of free bearing |
| A3 |
38.1 mm
|
Hub height |
| A4 |
49.213 mm
|
Housing flange to machined flange face |
| A6 |
76.2 mm
|
Flange face to inner ring face |
| B |
171.45 mm
|
Inner ring width |
| J |
298.45 mm
|
Bolt pitch diameter |
| L |
342.9 mm
|
Housing outside diameter |
| N |
20.638 mm
|
Bolt hole diameter |
| s |
85.725 mm
|
Centre line unit to side face of inner ring |
| T |
171.45 mm
|
Overall unit width |
| GN |
1/8-27 NPT
|
Thread of grease fitting |
|---|
| Basic dynamic load rating | C |
454 kN
|
|---|---|---|
| Basic static load rating | C0 |
735 kN
|
| Fatigue load limit | Pu |
76.5 kN
|
| Comparative radial load rating | CF |
125 kN
|
| Limiting speed |
1 300 r/min
|
|
| Limiting value | e |
0.52
|
| Calculation factor | Y1 |
1.3
|
| Calculation factor | Y2 |
1.9
|
| Calculation factor | Y0 |
1.3
|
| Bearing mean diameter | dm |
145.113 mm
|
| Axial holding force of the locking mechanism | Pa |
31.1 kN
|
| Mass bearing unit |
43 kg
|
| Attachment bolt diameter | G |
19.05 mm
|
|---|---|---|
| Set screws |
5/8-11
|
|
| Number of set screws |
4
|
|
| Tightening torque for set screws |
148.575 N·m
|
|
| Grease quantity for relubrication |
28.3 g
|
|
| Tapped hole for push-out bolt | G2 |
3/4-10
|
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