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 |
Radial lip seal
|
| da |
114.3 mm
|
Shaft diameter |
|---|---|---|
| d2 |
155.575 mm
|
Collar outer diameter |
| A |
117.475 mm
|
Housing foot width |
| A5 |
161.925 mm
|
Width including end cover |
| B |
155.575 mm
|
Inner ring width |
| H |
120.65 mm
|
Height base to center |
| H1 |
69.85 mm
|
Housing foot height |
| H2 |
247.65 mm
|
Housing height |
| J |
min. 333.375 mm
|
Distance between attachment bolts, max. |
| J |
max. 368.3 mm
|
Distance between attachment bolts, min. |
| J |
350.838 mm
|
Distance of attachment bolts |
| J1 |
63.5 mm
|
Axial distance bolt to bolt |
| L |
422.275 mm
|
Housing length |
| N |
22.225 mm
|
Width foot slot width |
| N1 |
39.688 mm
|
Length of attachment bolt hole |
| s |
77.788 mm
|
Centre line unit to side face of inner ring |
| S |
5.08 mm
|
Centre line of “fixed” bearing |
| GN |
1/4-18 NPT
|
Thread of grease fitting |
|---|
| Basic dynamic load rating | C |
408 kN
|
|---|---|---|
| Basic static load rating | C0 |
560 kN
|
| Fatigue load limit | Pu |
56.9 kN
|
| Limiting speed |
1 900 r/min
|
|
| Limiting value | e |
0.25
|
| Calculation factor | Y1 |
2.7
|
| Calculation factor | Y2 |
4
|
| Calculation factor | Y0 |
2.5
|
| Bearing mean diameter | dm |
154.94 mm
|
| Axial holding force of the locking mechanism | Pa |
10.7 kN
|
| P90° |
132 kN
|
Safe load at 90° |
|---|---|---|
| P135° |
82.7 kN
|
Safe load at 135° |
| P180° |
85.4 kN
|
Safe load at 180° |
| Mass bearing unit |
32.3 kg
|
| Attachment bolt diameter | G |
0.75 in
|
|---|---|---|
| Set screws |
5/8″-18 UNF-2A x 7/8″
|
|
| Number of set screws |
4
|
|
| Tightening torque for set screws |
149.705 N·m
|
|
| Grease quantity for relubrication |
21 g
|
Reviews
There are no reviews yet.