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 |
Radial lip seal
|
| da |
69.85 mm
|
Shaft diameter |
|---|---|---|
| d2 |
111.125 mm
|
Collar outer diameter |
| A |
76.2 mm
|
Housing foot width |
| A5 |
114.697 mm
|
Width including end cover |
| B |
92.075 mm
|
Inner ring width |
| H |
79.375 mm
|
Height base to center |
| H1 |
47.625 mm
|
Housing foot height |
| H2 |
160.338 mm
|
Housing height |
| J |
min. 234.95 mm
|
Distance between attachment bolts, max. |
| J |
max. 247.65 mm
|
Distance between attachment bolts, min. |
| J |
241.3 mm
|
Distance of attachment bolts |
| L |
304.8 mm
|
Housing length |
| N |
22.225 mm
|
Width foot slot width |
| N1 |
28.575 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 |
158 kN
|
|---|---|---|
| Basic static load rating | C0 |
208 kN
|
| Fatigue load limit | Pu |
23.6 kN
|
| Limiting speed |
2 800 r/min
|
|
| Limiting value | e |
0.22
|
| Calculation factor | Y1 |
3
|
| Calculation factor | Y2 |
4.6
|
| Calculation factor | Y0 |
2.8
|
| Bearing mean diameter | dm |
102.616 mm
|
| Axial holding force of the locking mechanism | Pa |
4 kN
|
| P90° |
71.2 kN
|
Safe load at 90° |
|---|---|---|
| P135° |
42.7 kN
|
Safe load at 135° |
| P180° |
48 kN
|
Safe load at 180° |
| Mass bearing unit |
10.4 kg
|
| Attachment bolt diameter | G |
0.75 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 |
8 g
|
Reviews
There are no reviews yet.