NTN BK2520 Drawn cup needle roller bearings-closed end
| Brand Name |
NTN |
| Model Number |
BK2520 |
| Min.Order Quantity |
1 pcs |
| Price |
Negotiable |
Product Features
NTN BK2520 bearing Size Chart (mm/inches) |
|---|
| Bearing number | W 6208-2RZ |
| Size (mm) | 80x40x18 |
| Bore Diameter (mm) | 80 |
| Outer Diameter (mm) | 40 |
| Width (mm) | 18 |
| d | 40 mm |
| D | 80 mm |
| B | 18 mm |
| d2 | 50.1 mm |
| D2 | 70.78 mm |
| r1,2 - min. | 1.1 mm |
| Da - max. | 73.5 mm |
| ra - max. | 1 mm |
| Basic dynamic load rating - C | 25.1 kN |
| Basic static load rating - C0 | 17.6 kN |
| Fatigue load limit - Pu | 0.75 kN |
| Reference speed | 20000 r/min |
| Limiting speed | 10000 r/min |
| Calculation factor - kr | 0.03 |
| Calculation factor - f0 | 14 |
| d2 ≈ | 50.1 mm |
| D2 ≈ | 70.78 mm |
| r1,2 min. | 1.1 mm |
| da min. | 46.5 mm |
| da max. | 50 mm |
| Da max. | 73.5 mm |
| ra max. | 1 mm |
| Basic dynamic load rating C | 25.1 kN |
| Basic static load rating C0 | 17.6 kN |
| Fatigue load limit Pu | 0.75 kN |
| Calculation factor kr | 0.03 |
| Calculation factor f0 | 14 |
| Mass bearing | 0.36 kg |