SYNT 70 F
Pillow block roller bearing unit, two-bolt, SKF ConCentra 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 SKF ConCentra locking, creating a true concentric tight fit, and setting the correct internal clearance within the bearing. The units are sealed and lubricated and ready to use. This bearing unit covers a wide range of requirements, in metric dimensions.
- Ready to mount
- Robust
- Factory lubricated and sealed
- Quick mounting
- Long service life
Description
| Metric/inch series | Metric |
| Bearing insert | Spherical roller bearing |
| Bearing position | Locating |
| Locking method | SKF ConCentra |
| Bearing housing seal type | Radial lip seal |
Dimensions
| da | 70 mm | Shaft diameter |
|---|---|---|
| d2 | 96 mm | Collar outer diameter |
| A | 90 mm | Housing foot width |
| B | 72 mm | Inner ring width |
| H | 95 mm | Height base to center |
| H1 | 32 mm | Housing foot height |
| H2 | 176 mm | Housing height |
| J | 260 mm | Distance of attachment bolts |
| L | 315 mm | Housing length |
| N | 22 mm | Width foot slot width |
| N1 | 28 mm | Length of attachment bolt hole |
| A4 | 80 mm | Distance bearing centre line to end cover |
|---|---|---|
| ba | max. 70 mm | Distance bearing centre line to shaft end |
| ba | min. 38 mm | Distance bearing centre line to shaft end |
| J6 | 290 mm | Distance dowel pins |
|---|---|---|
| J7 | 32.5 mm | Distance dowel pins |
| N4 | 8 mm | Pin hole diameter |
Calculation data
| Basic dynamic load rating | C | 208 kN |
|---|---|---|
| Basic static load rating | C0 | 228 kN |
| Fatigue load limit | Pu | 25.5 kN |
| Limiting speed | 2 600 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 | 97.5 mm |
| Axial holding force of the locking mechanism | Pa | 20 kN |
Breaking loads
| P0° | 350 kN | Breaking load |
|---|---|---|
| P55° | 400 kN | Breaking load |
| P90° | 240 kN | Breaking load |
| P120° | 160 kN | Breaking load |
| P150° | 145 kN | Breaking load |
| P180° | 215 kN | Breaking load |
Mass
| Mass bearing unit | 11 kg |
Mounting information
| Attachment bolt diameter | G | 20 mm |
|---|---|---|
| Tightening torque for attachment bolts | 385 N·m | |
| Set screws | M6 | |
| Number of set screws | 4 | |
| Tightening torque for set screws | 8 N·m | |
| Grease quantity for relubrication | 8 g |
Associated products
| End cover | ECY 214 |
