NTN K55×60×17 needle roller bearings
| Brand Name |
NTN |
| Model Number |
K55×60×17 |
| Min.Order Quantity |
1 pcs |
| Price |
Negotiable |
Product Features
NTN K55×60×17 bearing Size Chart (mm/inches) |
|---|
| Bearing number | 71911 CE/P4AL |
| Size (mm) | 80x55x13 |
| Bore Diameter (mm) | 80 |
| Outer Diameter (mm) | 55 |
| Width (mm) | 13 |
| d | 55 mm |
| D | 80 mm |
| B | 13 mm |
| d1 | 62.75 mm |
| d2 | 60.7 mm |
| D1 | 72.3 mm |
| b | 2.2 mm |
| C1 | 6.5 mm |
| C2 | 2.5 mm |
| C3 | 2 mm |
| r1,2 - min. | 1 mm |
| r3,4 - min. | 0.3 mm |
| a | 16.2 mm |
| da - min. | 59.6 mm |
| db - min. | 57 mm |
| Da - max. | 75.4 mm |
| Db - max. | 78 mm |
| ra - max. | 1 mm |
| rb - max. | 0.3 mm |
| dn | 64.6 mm |
| Basic dynamic load rating - C | 15.3 kN |
| Basic static load rating - C0 | 10.6 kN |
| Fatigue load limit - Pu | 0.455 kN |
| Limiting speed for grease lubrication | 24000 r/min |
| Limiting speed for oil lubrication | 36000 mm/min |
| Ball - Dw | 7.938 mm |
| Ball - z | 21 |
| Gref | 2.3 cm3 |
| Calculation factor - f0 | 8.4 |
| Preload class A - GA | 83 N |
| Preload class B - GB | 250 N |
| Preload class C - GC | 500 N |
| Calculation factor - f | 1.16 |
| Calculation factor - f | 1 |
| Calculation factor - f2A | 1 |
| Calculation factor - f2B | 1.04 |
| Calculation factor - f2C | 1.08 |
| Calculation factor - fHC | 1 |
| Preload class A | 42 N/micron |
| Preload class B | 67 N/micron |
| Preload class C | 92 N/micron |
| d1 | 62.75 mm |
| d2 | 60.7 mm |
| D1 | 72.3 mm |
| C1 | 6.5 mm |
| C2 | 2.5 mm |
| C3 | 2 mm |
| r1,2 min. | 1 mm |
| r3,4 min. | 0.3 mm |
| da min. | 59.6 mm |
| db min. | 57 mm |
| Da max. | 75.4 mm |
| Db max. | 78 mm |
| ra max. | 1 mm |
| rb max. | 0.3 mm |
| dn | 64.6 mm |
| Basic dynamic load rating C | 15.3 kN |
| Basic static load rating C0 | 10.6 kN |
| Fatigue load limit Pu | 0.455 kN |
| Attainable speed for grease lubrication | 24000 r/min |
| Attainable speed for oil-air lubrication | 36000 r/min |
| Ball diameter Dw | 7.938 mm |
| Number of balls z | 21 |
| Reference grease quantity Gref | 2.3 cm³ |
| Preload class A GA | 83 N |
| Static axial stiffness, preload class A | 42 N/µm |
| Preload class B GB | 250 N |
| Static axial stiffness, preload class B | 67 N/µm |
| Preload class C GC | 500 N |
| Static axial stiffness, preload class C | 92 N/µm |
| Calculation factor f | 1.16 |
| Calculation factor f1 | 1 |
| Calculation factor f2A | 1 |
| Calculation factor f2B | 1.04 |
| Calculation factor f2C | 1.08 |
| Calculation factor fHC | 1 |
| Calculation factor f0 | 8.4 |
| Mass bearing | 0.17 kg |