P2B 112-SRB-SRE
Pillow block roller bearing unit, two-bolt, set screw lockingPillow (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.
- Ready to mount
- Robust
- Factory lubricated and sealed
- Quick mounting
- Long service life
Description
| Metric/inch series | Inch |
| Bearing insert | Spherical roller bearing |
| Bearing position | Non-locating |
| Locking method | Set screws |
| Bearing housing seal type | Radial lip seal |
Dimensions
| da | 44.45 mm | Shaft diameter |
|---|---|---|
| d2 | 68.707 mm | Collar outer diameter |
| A | 58.738 mm | Housing foot width |
| A5 | 82.153 mm | Width including end cover |
| B | 73.025 mm | Inner ring width |
| H | 53.975 mm | Height base to center |
| H1 | 33.338 mm | Housing foot height |
| H2 | 109.538 mm | Housing height |
| J | min. 131.763 mm | Distance between attachment bolts, max. |
| J | max. 152.4 mm | Distance between attachment bolts, min. |
| J | 142.081 mm | Distance of attachment bolts |
| L | 187.325 mm | Housing length |
| N | 15.875 mm | Width foot slot width |
| N1 | 26.194 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 | 77.788 mm | Total width |
| GN | 1/8-27 NPT | Thread of grease fitting |
|---|
Calculation data
| 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 |
Safe loads
| P90° | 34.7 kN | Safe load at 90° |
|---|---|---|
| P135° | 19.6 kN | Safe load at 135° |
| P180° | 23.1 kN | Safe load at 180° |
Mass
| Mass bearing unit | 3.65 kg |
Mounting information
| 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 |
Associated products
| End cover | ECY 209 |
