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 |
57.15 mm
|
Shaft diameter |
|---|---|---|
| d2 |
101.6 mm
|
Collar outer diameter |
| A |
73.025 mm
|
Housing foot width |
| B |
101.6 mm
|
Inner ring width |
| H |
69.85 mm
|
Height base to center |
| H1 |
41.275 mm
|
Housing foot height |
| H2 |
145.256 mm
|
Housing height |
| J |
min. 212.725 mm
|
Distance between attachment bolts, max. |
| J |
max. 219.075 mm
|
Distance between attachment bolts, min. |
| J |
215.9 mm
|
Distance of attachment bolts |
| L |
266.7 mm
|
Housing length |
| N |
19.05 mm
|
Width foot slot width |
| N1 |
22.225 mm
|
Length of attachment bolt hole |
| s |
50.8 mm
|
Centre line unit to side face of inner ring |
| GN |
1/8-27 NPT
|
Thread of grease fitting |
|---|
| Basic dynamic load rating | C |
173 kN
|
|---|---|---|
| Basic static load rating | C0 |
220 kN
|
| Fatigue load limit | Pu |
25.5 kN
|
| Comparative radial load rating | CF |
46.5 kN
|
| Limiting speed |
2 250 r/min
|
|
| Limiting value | e |
0.4
|
| Calculation factor | Y1 |
1.7
|
| Calculation factor | Y2 |
2.5
|
| Calculation factor | Y0 |
1.6
|
| Bearing mean diameter | dm |
84.23 mm
|
| Axial holding force of the locking mechanism | Pa |
15.6 kN
|
| Mass bearing unit |
10.6 kg
|
| Attachment bolt diameter | G |
0.625 in
|
|---|---|---|
| Set screws |
3/8-16
|
|
| Number of set screws |
4
|
|
| Tightening torque for set screws |
31.071 N·m
|
|
| Grease quantity for relubrication |
8.5 g
|
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