NTN Bearings Model
NTN 21320D1 Double Row Spherical Roller Bearings
21320D1 Bearing dimensions and specification in NTN catalogue:
| B | 47 mm |
| D | 215 mm |
| b | 9 mm |
| d | 100 mm |
| e | 0.22 |
| k | 5 mm |
| D1 | 178.7 mm |
| Y0 | 2.94 |
| Y1 | 3.01 |
| Y2 | 4.48 |
NTN 21320D1 Double Row Spherical Roller Bearings Bearing Data Sheet:
| d2 | 137 mm |
| Nlim | 3,900 rpm |
| Nref | 3,200 rpm |
| Brand | NTN |
| Da max | 201 mm |
| da min | 114 mm |
| ra max | 2.5 mm |
| rs min | 3 mm |
| Category | Bearings |
| Inventory | 0.0 |
| Product Group | B04311 |
| Dynamic load, C | 370 kN |
| Static load, C0 | 465 kN |
| Manufacturer Name | NTN |
| Weight / Kilogram | 8.64 |
| Minimum Buy Quantity | N/A |
| Fatigue limit load, Cu | 31.5 kN |
| Radial clearance class | CN |
| Number of lubrication holes | 4 |
| Max operating temperature, Tmax | 120 °C |
| Min operating temperature, Tmin | -40 °C |
| Characteristic cage frequency, FTF | 0.42 Hz |
| Characteristic inner ring frequency, BPFI | 9.2 Hz |
| Characteristic outer ring frequency, BPF0 | 6.8 Hz |
| Characteristic rolling element frequency, BSF | 6.44 Hz |
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