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Slewing ring tower crane crossed roller bearing for excavator parts
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- Rollway
Ncf2920cv
-
AMERICAN BEARING MFG.CORP.2020-07-10 09:46:19
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Slewing ring tower crane crossed roller bearing for excavator partsTechnology
Rollway Ncf2920cv bearing Size Chart (mm/inches) | |
|---|---|
| Bearing number | 4T-3382/3321 |
| Size (mm) | 39.688x77.534x29.37 |
| Bore Diameter (mm) | 39,688 |
| Outer Diameter (mm) | 77,534 |
| Width (mm) | 29,37 |
| d | 39,688 mm |
| D | 77,534 mm |
| T | 29,37 mm |
| B | 30,391 mm |
| C | 23,812 mm |
| ra1 max. | 3,3 mm |
| a | 11,2 mm |
| Da | 68 mm |
| db | 45,5 mm |
| ra max. | 3,5 mm |
| da | 52 mm |
| Db | 75 mm |
| Weight | 0,669 Kg |
| Basic dynamic load rating (C) | 95 kN |
| Basic static load rating (C0) | 112 kN |
| (Grease) Lubrication Speed | 4 800 r/min |
| (Oil) Lubrication Speed | 6 400 r/min |
| Calculation factor (e) | 0,27 |
| Calculation factor (Y0) | 1,21 |
| d1 | 58 mm |
| e | 0.27 |
| Y2 | 2.2 |
| Y0 | 1.21 |
| Mass | 0.67 kg |
| Dynamic load, C | 95 kN |
| Rating life coefficient, A2 | 1.4 |
| Static load, C0 | 112 kN |
| Fatigue limit load, Cu | 13.7 kN |
| Nlim (oil) | 6,400 rpm |
| Nlim (grease) | 4,800 rpm |
| Min operating temperature, Tmin | -40 °C |
| Max operating temperature, Tmax | 120 °C |
| Characteristic cage frequency, FTF | 0.41 Hz |
| Characteristic rolling element frequency, BSF | 5.32 Hz |
| Characteristic outer ring frequency, BPF0 | 6.16 Hz |
| Characteristic inner ring frequency, BPFI | 8.84 Hz |
| ra max | 3.5 mm |
| r1a max | 3.3 mm |
Slewing ring tower crane crossed roller bearing for excavator parts Cad Models
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- AMERICAN BEARING MFG.CORP.
- Address763 South Layton Road Anderson Indiana 4621, U.S.A.
- Phone(Working Time)1-334-321-3200
- Fax
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