Bearing NU2340 M AST
What are the dimensions of a Bearing NU2340 M AST? Cylindrical Roller Bearings Distributior Manufacturing 72x50x12 Service . Get Your Free, Instant Quote！
| Min.Order Quantity |
1 pcs |
| Price |
Negotiable |
Product Details
| Bearing number | 71910 CB/P4A |
| Size (mm) | 72x50x12 |
| Bore Diameter (mm) | 72 |
| Outer Diameter (mm) | 50 |
| Width (mm) | 12 |
| d | 50 mm |
| D | 72 mm |
| B | 12 mm |
| d1 | 57.95 mm |
| d2 | 56.9 mm |
| D2 | 66.04 mm |
| r1,2 - min. | 0.6 mm |
| r3,4 - min. | 0.3 mm |
| a | 16.7 mm |
| da - min. | 53.2 mm |
| db - min. | 53.2 mm |
| Da - max. | 68.8 mm |
| Db - max. | 70 mm |
| ra - max. | 0.6 mm |
| rb - max. | 0.3 mm |
| dn | 58.7 mm |
| Basic dynamic load rating - C | 7.6 kN |
| Basic static load rating - C0 | 6.2 kN |
| Fatigue load limit - Pu | 0.265 kN |
| Limiting speed for grease lubrication | 26000 r/min |
| Limiting speed for oil lubrication | 38000 mm/min |
| Ball - Dw | 4.762 mm |
| Ball - z | 29 |
| Gref | 1.89 cm3 |
| Calculation factor - f0 | 9.8 |
| Preload class A - GA | 26 N |
| Preload class B - GB | 52 N |
| Preload class C - GC | 155 N |
| Calculation factor - f | 1 |
| Calculation factor - f2A | 1 |
| Calculation factor - f2B | 1.02 |
| Calculation factor - f2C | 1.07 |
| Calculation factor - fHC | 1 |
| Preload class A | 31 N/micron |
| Preload class B | 40 N/micron |
| Preload class C | 65 N/micron |
| r1,2 min. | 0.6 mm |
| r3,4 min. | 0.3 mm |
| da min. | 53.2 mm |
| db min. | 53.2 mm |
| Da max. | 68.8 mm |
| Db max. | 70 mm |
| ra max. | 0.6 mm |
| rb max. | 0.3 mm |
| Basic dynamic load rating C | 10.4 kN |
| Basic static load rating C0 | 10.2 kN |
| Fatigue load limit Pu | 0.265 kN |
| Attainable speed for grease lubrication | 26000 r/min |
| Attainable speed for oil-air lubrication | 38000 r/min |
| Ball diameter Dw | 4.762 mm |
| Number of balls z | 29 |
| Reference grease quantity Gref | 1.89 cm³ |
| Preload class A GA | 26 N |
| Static axial stiffness, preload class A | 31 N/µm |
| Preload class B GB | 52 N |
| Static axial stiffness, preload class B | 40 N/µm |
| Preload class C GC | 155 N |
| Static axial stiffness, preload class C | 65 N/µm |
| Calculation factor f | 1.09 |
| Calculation factor f1 | 1 |
| Calculation factor f2A | 1 |
| Calculation factor f2B | 1.02 |
| Calculation factor f2C | 1.07 |
| Calculation factor fHC | 1 |
| Calculation factor f0 | 9.8 |
| Mass bearing | 0.13 kg |
