NTN 4T-387A/382S Roller Bearings
NTN 4T-387A/382S Roller Bearings 50x88.9x20.638 Manufacturers Leader Hydraulic Pump Co.,Limited. , Online Wholesale Suppliers !
Product Details
| Bearing number | 4T-366/362A |
| Size (mm) | 50x88.9x20.638 |
| Bore Diameter (mm) | 50 |
| Outer Diameter (mm) | 88,9 |
| Width (mm) | 20,638 |
| d | 50 mm |
| D | 88,9 mm |
| T | 20,638 mm |
| B | 22,225 mm |
| C | 16,513 mm |
| ra1 max. | 1,3 mm |
| a | 4 mm |
| Da | 81 mm |
| db | 55 mm |
| ra max. | 2,3 mm |
| da | 59 mm |
| Db | 84 mm |
| Weight | 0,529 Kg |
| Basic dynamic load rating (C) | 76,5 kN |
| Basic static load rating (C0) | 90,5 kN |
| (Grease) Lubrication Speed | 4 100 r/min |
| (Oil) Lubrication Speed | 5 500 r/min |
| Calculation factor (e) | 0,32 |
| Calculation factor (Y0) | 1,03 |
| d1 | 67 mm |
| e | 0.32 |
| Y2 | 1.88 |
| Y0 | 1.03 |
| Mass | 0.53 kg |
| Dynamic load, C | 76.5 kN |
| Rating life coefficient, A2 | 1.4 |
| Static load, C0 | 90.5 kN |
| Fatigue limit load, Cu | 11 kN |
| Nlim (oil) | 5,500 rpm |
| Nlim (grease) | 4,100 rpm |
| Min operating temperature, Tmin | -40 °C |
| Max operating temperature, Tmax | 120 °C |
| Characteristic cage frequency, FTF | 0.43 Hz |
| Characteristic rolling element frequency, BSF | 6.5 Hz |
| Characteristic outer ring frequency, BPF0 | 7.68 Hz |
| Characteristic inner ring frequency, BPFI | 10.32 Hz |
| ra max | 2.3 mm |
| r1a max | 1.3 mm |