Hybrid Ceramic Stainless Steel Ball Bearing for Bike Bicycle (6902 61902-2RS)
| Model Number |
(6902 |
| Min.Order Quantity |
1 pcs |
| Price |
Negotiable |
Product Features
Hybrid Ceramic Stainless Steel Ball Bearing for Bike Bicycle (6902 61902-2RS) Size Chart (mm/inches) |
|---|
| Bearing number | 4T-623/612 |
| Size (mm) | 57.15x120.65x41.275 |
| Bore Diameter (mm) | 57,15 |
| Outer Diameter (mm) | 120,65 |
| Width (mm) | 41,275 |
| d | 57,15 mm |
| D | 120,65 mm |
| T | 41,275 mm |
| B | 41,275 mm |
| C | 31,75 mm |
| ra1 max. | 3,3 mm |
| a | 14,4 mm |
| Da | 105 mm |
| db | 66 mm |
| ra max. | 3,5 mm |
| da | 72 mm |
| Db | 110 mm |
| Weight | 2,12 Kg |
| Basic dynamic load rating (C) | 172 kN |
| Basic static load rating (C0) | 213 kN |
| (Grease) Lubrication Speed | 3 300 r/min |
| (Oil) Lubrication Speed | 4 400 r/min |
| Calculation factor (e) | 0,31 |
| Calculation factor (Y0) | 1,05 |
| d1 | 84 mm |
| rs min | 3.5 mm |
| r1s min | 3.3 mm |
| e | 0.31 |
| Y2 | 1.91 |
| Y0 | 1.05 |
| Mass | 2.12 kg |
| Dynamic load, C | 172 kN |
| Rating life coefficient, A2 | 1.4 |
| Static load, C0 | 213 kN |
| Fatigue limit load, Cu | 26 kN |
| Nlim (oil) | 4,400 rpm |
| Nlim (grease) | 3,300 rpm |
| Min operating temperature, Tmin | -40 °C |
| Max operating temperature, Tmax | 120 °C |
| Characteristic cage frequency, FTF | 0.42 Hz |
| Characteristic rolling element frequency, BSF | 5.57 Hz |
| Characteristic outer ring frequency, BPF0 | 6.22 Hz |
| Characteristic inner ring frequency, BPFI | 8.78 Hz |
| ra max | 3.5 mm |
| r1a max | 3.3 mm |
| Category | Bearings |
| Inventory | 0.0 |
| Manufacturer Name | NTN |
| Minimum Buy Quantity | N/A |
| Weight / Kilogram | 2.1 |
| Product Group | B04334 |