P2B 203-SRB-SLE
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 | Labyrinth seal |
Dimensions
| da | 55.563 mm | Shaft diameter |
|---|---|---|
| d2 | 82.55 mm | Collar outer diameter |
| A | 60.325 mm | Housing foot width |
| A5 | 94.456 mm | Width including end cover |
| B | 79.375 mm | Inner ring width |
| H | 63.5 mm | Height base to center |
| H1 | 41.275 mm | Housing foot height |
| H2 | 129.778 mm | Housing height |
| J | min. 163.513 mm | Distance between attachment bolts, max. |
| J | max. 187.325 mm | Distance between attachment bolts, min. |
| J | 177.006 mm | Distance of attachment bolts |
| L | 225.425 mm | Housing length |
| N | 19.05 mm | Width foot slot width |
| N1 | 30.956 mm | Length of attachment bolt hole |
| s | 28.575 mm | Centre line unit to side face of inner ring |
| S | 0.794 mm | Centre line of “fixed” bearing |
| T | 81.756 mm | Total width |
| GN | 1/8-27 NPT | Thread of grease fitting |
|---|
Calculation data
| Basic dynamic load rating | C | 99.6 kN |
|---|---|---|
| Basic static load rating | C0 | 118 kN |
| Fatigue load limit | Pu | 12.9 kN |
| Limiting speed | 4 500 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 | 77.47 mm |
| Axial holding force of the locking mechanism | Pa | 2.29 kN |
Safe loads
| P90° | 46.3 kN | Safe load at 90° |
|---|---|---|
| P135° | 27.6 kN | Safe load at 135° |
| P180° | 32.9 kN | Safe load at 180° |
Mass
| Mass bearing unit | 5.44 kg |
Mounting information
| Attachment bolt diameter | G | 0.625 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 | 5 g |
Associated products
| End cover | ECY 211 |
