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 |
Heavy-duty seal
|
| da |
49.213 mm
|
Shaft diameter |
|---|---|---|
| d2 |
73.787 mm
|
Collar outer diameter |
| A |
58.738 mm
|
Housing foot width |
| A5 |
88.503 mm
|
Width including end cover |
| B |
73.025 mm
|
Inner ring width |
| H |
57.15 mm
|
Height base to center |
| H1 |
34.925 mm
|
Housing foot height |
| H2 |
117.872 mm
|
Housing height |
| J |
min. 150.813 mm
|
Distance between attachment bolts, max. |
| J |
max. 174.625 mm
|
Distance between attachment bolts, min. |
| J |
162.719 mm
|
Distance of attachment bolts |
| L |
212.725 mm
|
Housing length |
| N |
19.05 mm
|
Width foot slot width |
| N1 |
30.956 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 |
77.788 mm
|
Total width |
| GN |
1/8-27 NPT
|
Thread of grease fitting |
|---|
| Basic dynamic load rating | C |
84.5 kN
|
|---|---|---|
| Basic static load rating | C0 |
100 kN
|
| Fatigue load limit | Pu |
11 kN
|
| Limiting speed |
1 450 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 |
70.104 mm
|
| Axial holding force of the locking mechanism | Pa |
2.29 kN
|
| P90° |
40 kN
|
Safe load at 90° |
|---|---|---|
| P135° |
23.1 kN
|
Safe load at 135° |
| P180° |
28.5 kN
|
Safe load at 180° |
| Mass bearing unit |
4.15 kg
|
| Attachment bolt diameter | G |
0.625 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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