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 |
110 mm
|
Shaft diameter |
|---|---|---|
| d2 |
155.575 mm
|
Collar outer diameter |
| A |
117.475 mm
|
Housing foot width |
| B |
171.45 mm
|
Inner ring width |
| H |
120.65 mm
|
Height base to center |
| H1 |
69.85 mm
|
Housing foot height |
| H2 |
238.125 mm
|
Housing height |
| J |
min. 336.55 mm
|
Distance between attachment bolts, max. |
| J |
max. 349.25 mm
|
Distance between attachment bolts, min. |
| J |
342.9 mm
|
Distance of attachment bolts |
| J1 |
63.5 mm
|
Axial distance bolt to bolt |
| L |
422.275 mm
|
Housing length |
| N |
23.813 mm
|
Width foot slot width |
| N1 |
30.163 mm
|
Length of attachment bolt hole |
| s |
85.725 mm
|
Centre line unit to side face of inner ring |
| 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 |
41.4 kg
|
| Attachment bolt diameter | G |
0.75 in
|
|---|---|---|
| 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
|
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