Pillow block roller bearing units consist of a tapered roller bearing mounted in a non-split type E dimensions housing that can be bolted to a support surface. This variant has a four-bolt base and set screw locking, holding the shaft firmly against the inner ring of the bearing. The units are sealed and lubricated and ready to use. This assortment of units covers a wide range of requirements, in inch dimensions.
| Metric/inch series |
Inch
|
| Bearing insert |
Tapered roller bearing
|
| Bearing position |
Locating
|
| Locking method |
Set screws
|
| Bearing housing seal type |
Heavy-duty seal
|
| da |
125 mm
|
Shaft diameter |
|---|---|---|
| d2 |
174.625 mm
|
Collar outer diameter |
| A |
130.175 mm
|
Housing foot width |
| B |
184.15 mm
|
Inner ring width |
| H |
139.7 mm
|
Height base to center |
| H1 |
76.2 mm
|
Housing foot height |
| H2 |
271.463 mm
|
Housing height |
| J |
min. 387.35 mm
|
Distance between attachment bolts, max. |
| J |
max. 400.05 mm
|
Distance between attachment bolts, min. |
| J |
393.7 mm
|
Distance of attachment bolts |
| J1 |
73.025 mm
|
Axial distance bolt to bolt |
| L |
469.9 mm
|
Housing length |
| N |
25.4 mm
|
Width foot slot width |
| N1 |
31.75 mm
|
Length of attachment bolt hole |
| s |
92.075 mm
|
Centre line unit to side face of inner ring |
| GN |
1/8-27 NPT
|
Thread of grease fitting |
|---|
| Basic dynamic load rating | C |
618 kN
|
|---|---|---|
| Basic static load rating | C0 |
1 040 kN
|
| Fatigue load limit | Pu |
106 kN
|
| Comparative radial load rating | CF |
170 kN
|
| Limiting speed |
1 150 r/min
|
|
| Limiting value | e |
0.46
|
| Calculation factor | Y1 |
1.5
|
| Calculation factor | Y2 |
2.2
|
| Calculation factor | Y0 |
1.4
|
| Bearing mean diameter | dm |
166.776 mm
|
| Axial holding force of the locking mechanism | Pa |
31.1 kN
|
| Mass bearing unit |
58.1 kg
|
| Attachment bolt diameter | G |
0.875 in
|
|---|---|---|
| Set screws |
5/8-11
|
|
| Number of set screws |
4
|
|
| Tightening torque for set screws |
148.575 N·m
|
|
| Grease quantity for relubrication |
42.5 g
|
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