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 two-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 |
31.75 mm
|
Shaft diameter |
|---|---|---|
| d2 |
57.15 mm
|
Collar outer diameter |
| A |
46.038 mm
|
Housing foot width |
| B |
69.85 mm
|
Inner ring width |
| H |
38.1 mm
|
Height base to center |
| H1 |
22.225 mm
|
Housing foot height |
| H2 |
76.2 mm
|
Housing height |
| J |
min. 120.65 mm
|
Distance between attachment bolts, max. |
| J |
max. 122.238 mm
|
Distance between attachment bolts, min. |
| J |
121.444 mm
|
Distance of attachment bolts |
| L |
152.4 mm
|
Housing length |
| N |
14.288 mm
|
Width foot slot width |
| N1 |
15.081 mm
|
Length of attachment bolt hole |
| s |
34.925 mm
|
Centre line unit to side face of inner ring |
| GN |
1/8-27 NPT
|
Thread of grease fitting |
|---|
| Basic dynamic load rating | C |
54.3 kN
|
|---|---|---|
| Basic static load rating | C0 |
64 kN
|
| Fatigue load limit | Pu |
6.7 kN
|
| Comparative radial load rating | CF |
14.6 kN
|
| Limiting speed |
4 300 r/min
|
|
| Limiting value | e |
0.48
|
| Calculation factor | Y1 |
1.4
|
| Calculation factor | Y2 |
2.1
|
| Calculation factor | Y0 |
1.4
|
| Bearing mean diameter | dm |
45.3 mm
|
| Axial holding force of the locking mechanism | Pa |
11.7 kN
|
| Mass bearing unit |
1.86 kg
|
| Attachment bolt diameter | G |
0.5 in
|
|---|---|---|
| Set screws |
5/16-18
|
|
| Number of set screws |
4
|
|
| Tightening torque for set screws |
17.513 N·m
|
|
| Grease quantity for relubrication |
2.8 g
|
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