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 |
Locating
|
| Locking method |
Set screws
|
| Bearing housing seal type |
Labyrinth seal
|
| da |
63.5 mm
|
Shaft diameter |
|---|---|---|
| d2 |
101.6 mm
|
Collar outer diameter |
| A |
88.9 mm
|
Housing foot width |
| A5 |
117.872 mm
|
Width including end cover |
| B |
85.725 mm
|
Inner ring width |
| H |
69.85 mm
|
Height base to center |
| H1 |
41.275 mm
|
Housing foot height |
| H2 |
144.463 mm
|
Housing height |
| J |
min. 209.55 mm
|
Distance between attachment bolts, max. |
| J |
max. 225.425 mm
|
Distance between attachment bolts, min. |
| J |
217.488 mm
|
Distance of attachment bolts |
| J1 |
47.625 mm
|
Axial distance bolt to bolt |
| L |
266.7 mm
|
Housing length |
| N |
19.05 mm
|
Width foot slot width |
| N1 |
26.988 mm
|
Length of attachment bolt hole |
| s |
31.75 mm
|
Centre line unit to side face of inner ring |
| S |
0.794 mm
|
Centre line of “fixed” bearing |
| T |
99.219 mm
|
Total width |
| GN |
1/8-27 NPT
|
Thread of grease fitting |
|---|
| Basic dynamic load rating | C |
147 kN
|
|---|---|---|
| Basic static load rating | C0 |
183 kN
|
| Fatigue load limit | Pu |
21.2 kN
|
| Limiting speed |
3 800 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 |
92.456 mm
|
| Axial holding force of the locking mechanism | Pa |
4 kN
|
| P90° |
76.5 kN
|
Safe load at 90° |
|---|---|---|
| P135° |
39.1 kN
|
Safe load at 135° |
| P180° |
42.3 kN
|
Safe load at 180° |
| Mass bearing unit |
9.98 kg
|
| Attachment bolt diameter | G |
0.625 in
|
|---|---|---|
| Set screws |
1/2″-20 UNF-3A x 3/4″
|
|
| Number of set screws |
2
|
|
| Tightening torque for set screws |
70.051 N·m
|
|
| Grease quantity for relubrication |
7 g
|
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