Pillow (plummer) block roller bearing units and take-up roller bearing units consist of a spherical or tapered roller bearing mounted in a non-split housing that can be bolted to a support surface. This variant has a spherical roller bearing, a four-bolt base, creating a stable and robust unit, 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 bearing unit covers a wide range of requirements, in inch dimensions.
| Metric/inch series |
Inch
|
| Bearing insert |
Spherical roller bearing
|
| Bearing position |
Non-locating
|
| Locking method |
Set screws
|
| Bearing housing seal type |
Labyrinth seal
|
| da |
93.663 mm
|
Shaft diameter |
|---|---|---|
| A |
114.3 mm
|
Housing foot width |
| A5 |
137.716 mm
|
Width including end cover |
| B |
116.681 mm
|
Inner ring width |
| H |
107.95 mm
|
Height base to center |
| H1 |
61.913 mm
|
Housing foot height |
| H2 |
217.488 mm
|
Housing height |
| J |
min. 304.8 mm
|
Distance between attachment bolts, max. |
| J |
max. 333.375 mm
|
Distance between attachment bolts, min. |
| J |
320.675 mm
|
Distance of attachment bolts |
| J1 |
57.15 mm
|
Axial distance bolt to bolt |
| L |
387.35 mm
|
Housing length |
| N |
22.225 mm
|
Width foot slot width |
| N1 |
36.513 mm
|
Length of attachment bolt hole |
| s |
41.275 mm
|
Centre line unit to side face of inner ring |
| S |
1.588 mm
|
Centre line of “fixed” bearing |
| T |
133.35 mm
|
Total width |
| GN |
1/8-27 NPT
|
Thread of grease fitting |
|---|
| Basic dynamic load rating | C |
311 kN
|
|---|---|---|
| Basic static load rating | C0 |
415 kN
|
| Fatigue load limit | Pu |
52.9 kN
|
| Limiting speed |
2 200 r/min
|
|
| Limiting value | e |
0.24
|
| Calculation factor | Y1 |
2.8
|
| Calculation factor | Y2 |
4.2
|
| Calculation factor | Y0 |
2.8
|
| Bearing mean diameter | dm |
139.954 mm
|
| Axial holding force of the locking mechanism | Pa |
5.34 kN
|
| P90° |
119 kN
|
Safe load at 90° |
|---|---|---|
| P135° |
72.1 kN
|
Safe load at 135° |
| P180° |
73.8 kN
|
Safe load at 180° |
| Mass bearing unit |
23 kg
|
| Attachment bolt diameter | G |
0.75 in
|
|---|---|---|
| Set screws |
5/8″-18 UNF-2A x 1″
|
|
| Number of set screws |
2
|
|
| Tightening torque for set screws |
149.705 N·m
|
|
| Grease quantity for relubrication |
17 g
|
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