Contact with us NNU4992K bearing Size Chart (mm/inches) |
|---|
| Housing material | Cast iron |
| d | 15.875 mm |
| Da | 50.8 mm |
| Db1 | 50 mm |
| Db2 | 57 mm |
| A | 26 mm |
| A1 | 11 mm |
| A3 | 3.2 mm |
| B1 | 28.6 mm |
| B4 | 4.75 mm |
| J | 76.5 mm |
| H | 98.5 mm |
| L | 57 mm |
| N | 11.5 mm |
| s1 | 22.1 mm |
| T | 39.1 mm |
| RG | 1/4-28 UNF |
| R1 | 19 mm |
| Rα | 45 ° |
| DN | 6.5 mm |
| SWN | 7 mm |
| GN | 1/4-28 SAE-LT |
| J6 | 61.5 mm |
| J7 | 11 mm |
| N4 | 2 mm |
| Basic dynamic load rating C | 9.56 kN |
| Basic static load rating C0 | 4.75 kN |
| Fatigue load limit Pu | 0.2 kN |
| Limiting speed | 9500 r/min |
| Thread grub screw G2 | 1/4-28 UNF |
| Hexagonal key size for grub screw N | 3.175 mm |
| Recommended tightening torque for grub screw | 4 N·m |
| Recommended diameter for attachment bolts, mm G | 10 mm |
| Recommended diameter for attachment bolts, inch G | 0.375 in |