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 |
74.613 mm
|
Shaft diameter |
|---|---|---|
| d2 |
111.125 mm
|
Collar outer diameter |
| A |
101.6 mm
|
Housing foot width |
| B |
114.3 mm
|
Inner ring width |
| H |
79.375 mm
|
Height base to center |
| H1 |
47.625 mm
|
Housing foot height |
| H2 |
158.75 mm
|
Housing height |
| J |
min. 233.363 mm
|
Distance between attachment bolts, max. |
| J |
max. 249.238 mm
|
Distance between attachment bolts, min. |
| J |
241.3 mm
|
Distance of attachment bolts |
| J1 |
53.975 mm
|
Axial distance bolt to bolt |
| L |
304.8 mm
|
Housing length |
| N |
17.463 mm
|
Width foot slot width |
| N1 |
25.4 mm
|
Length of attachment bolt hole |
| s |
57.15 mm
|
Centre line unit to side face of inner ring |
| GN |
1/8-27 NPT
|
Thread of grease fitting |
|---|
| Basic dynamic load rating | C |
170 kN
|
|---|---|---|
| Basic static load rating | C0 |
236 kN
|
| Fatigue load limit | Pu |
27.5 kN
|
| Comparative radial load rating | CF |
45.5 kN
|
| Limiting speed |
1 900 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 |
99.249 mm
|
| Axial holding force of the locking mechanism | Pa |
23.4 kN
|
| Mass bearing unit |
13.7 kg
|
| Attachment bolt diameter | G |
0.625 in
|
|---|---|---|
| Set screws |
1/2-13
|
|
| Number of set screws |
4
|
|
| Tightening torque for set screws |
69.486 N·m
|
|
| Grease quantity for relubrication |
11.3 g
|
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