Bearings, units and housings -- Bearing housings -- Split pillow blocks, SAF and SAW series (inch dimensions) -- SAF and SAW pillow blocks with bearings with a cylindrical bore -- SKF SAF 22228
SAF 22228
Dimensions
| da | 140 | mm | |
| db | 158.75 | mm | |
| dc | 134.938 | mm | |
| Da | 250 | mm | |
| Ca | 77.8 | mm | |
| A1 | 149.225 | mm | |
| A2 | 193.675 | mm | |
| S | 4.763 | mm | |
| ba | 61.119 | mm | |
| H | 305.594 | mm | |
| H1 | 152.4 | mm | |
| H2 | 60.325 | mm | |
| J | min. | 396.875 | mm |
| J | max. | 441.325 | mm |
| J1 | 85.725 | mm | |
| L | 511.175 | mm | |
| N1 | 28.575 | mm | |
| Threaded holes | |||
| R1 | 87.313 | mm | |
| R2 | 38.1 | mm | |
| RG | 3/4 NPT | ||
| PG | 1/4 NPT | ||
| Oil level | |||
| h | 51.594 | mm | |
Included products
| Housing |
SAF 228
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| Bearing | ||||
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| Lock nut | ||||
| Lock washer | ||||
| Stabilizing ring |
SR-28-0
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| Labyrinth ring (db shaft position) |
LOR 144
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| Labyrinth ring (dc shaft position) |
LOR 127
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Associated products
| End plug (suffix Y) |
EPR 16
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Speed ratings
| Bearing limiting speed | 3200 | r/min |
Recommended safe loads
| P60° | 249 | kN | |
| P90° | 158 | kN | |
| P120° | 94.3 | kN | |
| P150° | 85.9 | kN | |
| P180° | 103 | kN | |
| Pa | 66.7 | kN |
Mass
| Mass pillow block | 67.6 | kg |
Mounting information
| Cap bolt |
4 x 1-8 UNC
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| Cap bolt recommended tightening torque | 799.9 | N·m | ||
| Cap bolt, SAE grade | 5 | |||
| Eye bolt |
3/8-16 UNC
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| Appropriate attachment bolt size | G | 1 | in | |
| Initial grease fill | 481.95 | g | ||