P2B 208-SRB-SRH
Pillow block roller bearing unit, two-bolt, set screw locking
Pillow (plummer) block roller bearing units consist of a spherical 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.
- Ready to mount
- Robust
- Factory lubricated and sealed
- Quick mounting
- Long service life
Dimensions
| da |
63.5 mm
|
Shaft diameter |
| d2 |
101.6 mm
|
Collar outer diameter |
| A |
68.263 mm
|
Housing foot width |
| A5 |
103.981 mm
|
Width including end cover |
| B |
85.725 mm
|
Inner ring width |
| H |
69.85 mm
|
Height base to center |
| H1 |
44.45 mm
|
Housing foot height |
| H2 |
142.875 mm
|
Housing height |
| J |
min.173.038 mm
|
Distance between attachment bolts, max. |
| J |
max.196.85 mm
|
Distance between attachment bolts, min. |
| J |
184.944 mm
|
Distance of attachment bolts |
| L |
234.95 mm
|
Housing length |
| N |
19.05 mm
|
Width foot slot width |
| N1 |
30.956 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 |
88.9 mm
|
Total width |
GREASE FITTING
| GN |
1/8-27 NPT
|
Thread of grease fitting |
Calculation data
| Basic dynamic load rating |
C |
148 kN
|
| Basic static load rating |
C0 |
183 kN
|
| Fatigue load limit |
Pu |
21.2 kN
|
| Limiting speed |
|
3 100 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
|
Safe loads
| P90° |
51.6 kN
|
Safe load at 90° |
| P135° |
31.1 kN
|
Safe load at 135° |
| P180° |
36.9 kN
|
Safe load at 180° |
Mounting information
| 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
|
