Bearing NNU4944K KOYO
170 Million used Bearing NNU4944K KOYO instantly searchable. Shop our large 50x88.9x20.638 Size (mm) selection of parts based on brand, price, 50 Bore Diameter (mm) description, and location. Order the Cylindrical Roller Bearings Distributior with stock 50x88.9x20.638 ...
| Min.Order Quantity |
1 pcs |
| Price |
Negotiable |
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 |
