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 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 bearing unit covers a wide range of requirements, in inch dimensions.
| Metric/inch series |
Inch
|
| Bearing insert |
Spherical roller bearing
|
| Bearing position |
Locating
|
| Locking method |
Set screws
|
| Bearing housing seal type |
Labyrinth seal
|
| da |
38.1 mm
|
Shaft diameter |
|---|---|---|
| d2 |
62.738 mm
|
Collar outer diameter |
| A |
53.975 mm
|
Housing foot width |
| A5 |
76.994 mm
|
Width including end cover |
| B |
69.85 mm
|
Inner ring width |
| H |
47.625 mm
|
Height base to center |
| H1 |
30.163 mm
|
Housing foot height |
| H2 |
100.013 mm
|
Housing height |
| J |
min. 119.063 mm
|
Distance between attachment bolts, max. |
| J |
max. 139.7 mm
|
Distance between attachment bolts, min. |
| J |
129.381 mm
|
Distance of attachment bolts |
| L |
174.625 mm
|
Housing length |
| N |
15.875 mm
|
Width foot slot width |
| N1 |
26.194 mm
|
Length of attachment bolt hole |
| s |
25.4 mm
|
Centre line unit to side face of inner ring |
| S |
0.794 mm
|
Centre line of “fixed” bearing |
| T |
72.231 mm
|
Total width |
| GN |
1/8-27 NPT
|
Thread of grease fitting |
|---|
| Basic dynamic load rating | C |
73.8 kN
|
|---|---|---|
| Basic static load rating | C0 |
81.4 kN
|
| Fatigue load limit | Pu |
9.12 kN
|
| Limiting speed |
6 000 r/min
|
|
| Limiting value | e |
0.28
|
| Calculation factor | Y1 |
2.4
|
| Calculation factor | Y2 |
3.6
|
| Calculation factor | Y0 |
2.5
|
| Bearing mean diameter | dm |
59.944 mm
|
| Axial holding force of the locking mechanism | Pa |
2.29 kN
|
| P90° |
27.6 kN
|
Safe load at 90° |
|---|---|---|
| P135° |
14.2 kN
|
Safe load at 135° |
| P180° |
17.3 kN
|
Safe load at 180° |
| Mass bearing unit |
3.15 kg
|
| Attachment bolt diameter | G |
0.5 in
|
|---|---|---|
| Set screws |
3/8-24 UNF-3A x 1/2″
|
|
| Number of set screws |
2
|
|
| Tightening torque for set screws |
28.246 N·m
|
|
| Grease quantity for relubrication |
4 g
|
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