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 |
Non-locating
|
| Locking method |
Set screws
|
| Bearing housing seal type |
Radial lip seal
|
| da |
42.863 mm
|
Shaft diameter |
|---|---|---|
| d2 |
68.707 mm
|
Collar outer diameter |
| A |
60.325 mm
|
Housing foot width |
| A5 |
83.741 mm
|
Width including end cover |
| B |
73.025 mm
|
Inner ring width |
| H |
53.975 mm
|
Height base to center |
| H1 |
31.75 mm
|
Housing foot height |
| H2 |
107.95 mm
|
Housing height |
| J |
min. 155.575 mm
|
Distance between attachment bolts, max. |
| J |
max. 161.925 mm
|
Distance between attachment bolts, min. |
| J |
158.75 mm
|
Distance of attachment bolts |
| L |
200.025 mm
|
Housing length |
| N |
15.875 mm
|
Width foot slot width |
| N1 |
19.05 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 |
78.581 mm
|
Total width |
| GN |
1/8-27 NPT
|
Thread of grease fitting |
|---|
| Basic dynamic load rating | C |
77 kN
|
|---|---|---|
| Basic static load rating | C0 |
88.1 kN
|
| Fatigue load limit | Pu |
9.47 kN
|
| Limiting speed |
4 500 r/min
|
|
| Limiting value | e |
0.26
|
| Calculation factor | Y1 |
2.6
|
| Calculation factor | Y2 |
3.9
|
| Calculation factor | Y0 |
2.5
|
| Bearing mean diameter | dm |
65.024 mm
|
| Axial holding force of the locking mechanism | Pa |
2.29 kN
|
| P90° |
32 kN
|
Safe load at 90° |
|---|---|---|
| P135° |
18.7 kN
|
Safe load at 135° |
| P180° |
21.4 kN
|
Safe load at 180° |
| Mass bearing unit |
3.67 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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