Bearings, units and housings -- Bearing units -- Y-bearing units (ball bearing units) -- Y-bearing plummer block units -- Y-bearing plummer block units SKF SYJ 2.1/2 TF
SYJ 2.1/2 TF
| Material | Cast iron | |||
Dimensions
| d | 63.5 | mm | |
| A | 70 | mm | |
| A1 | 49 | mm | |
| B | 68.3 | mm | |
| H | 150.5 | mm | |
| H1 | 76.2 | mm | |
| H2 | 27 | mm | |
| J | 203 | mm | |
| J | max. | 213 | mm |
| J | min. | 193 | mm |
| L | 265 | mm | |
| N | 35 | mm | |
| N1 | 25 | mm | |
| s1 | 42.9 | mm | |
| Threaded hole | |||
| RG | 1/4-28 UNF | ||
| R1 | 5.5 | mm | |
| Ra | 45 | ° | |
| Grease fitting | |||
| DN | 6.5 | mm | |
| SWN | 7 | mm | |
| GN | 1/4-28 SAE-LT | ||
| Dowel pins | |||
| J6 | 241 | mm | |
| J7 | 23 | mm | |
| N4 | 4 | mm | |
Calculation data
| Basic dynamic load rating | C | 57.2 | kN | |
| Basic static load rating | C0 | 40 | kN | |
| Fatigue load limit | Pu | 1.7 | kN | |
| Limiting speed | 3000 | r/min |
(with shaft tolerance h6)
Mass
| Mass bearing unit | 5.9 | kg |
Mounting information
| Hexagonal key size for grub screw | N | 4.763 | mm | |
| Recommended tightening torque for grub screw | 16.5 | N·m | ||
| Recommended diameter for attachment bolts, mm | G | 20 | mm | |
| Recommended diameter for attachment bolts, inch | G | 0.75 | in |
Appertaining products
| Housing | ||||
| Bearing | ||||