508370 Four Row Cylindrical Roller Bearing
Request A Quote For Your Special 440 Bore Diameter (mm) 508370 Four Row Cylindrical Roller Bearing Needs 440x320x56 Today! Free Japan Bearings Quotes. Industrial Bearings Solutions 440x320x56 Size (mm) ISO 9001 certified.
| Min.Order Quantity |
1 pcs |
| Price |
Negotiable |
Product Details
| Bearing number | 71964 CDMA/P4A |
| Size (mm) | 440x320x56 |
| Bore Diameter (mm) | 440 |
| Outer Diameter (mm) | 320 |
| Width (mm) | 56 |
| d | 320 mm |
| D | 440 mm |
| B | 56 mm |
| d1 | 357 mm |
| d2 | 357 mm |
| D1 | 403 mm |
| r1,2 - min. | 3 mm |
| r3,4 - min. | 1.1 mm |
| a | 79.1 mm |
| da - min. | 333 mm |
| db - min. | 333 mm |
| Da - max. | 425 mm |
| Db - max. | 434 mm |
| ra - max. | 2.5 mm |
| rb - max. | 1 mm |
| dn | 367 mm |
| Basic dynamic load rating - C | 377 kN |
| Basic static load rating - C0 | 620 kN |
| Fatigue load limit - Pu | 13.7 kN |
| Limiting speed for grease lubrication | 2600 r/min |
| Limiting speed for oil lubrication | 4300 mm/min |
| Ball - Dw | 38.1 mm |
| Ball - z | 27 |
| Gref | 282 cm3 |
| Calculation factor - f0 | 16.5 |
| Preload class A - GA | 1400 N |
| Preload class B - GB | 2800 N |
| Preload class C - GC | 5600 N |
| Preload class D - GD | 11200 N |
| Calculation factor - f | 1 |
| Calculation factor - f2A | 1 |
| Calculation factor - f2B | 1.04 |
| Calculation factor - f2C | 1.09 |
| Calculation factor - f2D | 1.15 |
| Calculation factor - fHC | 1 |
| Preload class A | 281 N/micron |
| Preload class B | 380 N/micron |
| Preload class C | 530 N/micron |
| Preload class D | 765 N/micron |
| r1,2 min. | 3 mm |
| r3,4 min. | 1.1 mm |
| da min. | 333 mm |
| db min. | 333 mm |
| Da max. | 425 mm |
| Db max. | 434 mm |
| ra max. | 2.5 mm |
| rb max. | 1 mm |
| Basic dynamic load rating C | 377 kN |
| Basic static load rating C0 | 620 kN |
| Fatigue load limit Pu | 13.7 kN |
| Attainable speed for grease lubrication | 2600 r/min |
| Attainable speed for oil-air lubrication | 4300 r/min |
| Ball diameter Dw | 38.1 mm |
| Number of balls z | 27 |
| Reference grease quantity Gref | 282 cm³ |
| Preload class A GA | 1400 N |
| Static axial stiffness, preload class A | 281 N/µm |
| Preload class B GB | 2800 N |
| Static axial stiffness, preload class B | 380 N/µm |
| Preload class C GC | 5600 N |
| Static axial stiffness, preload class C | 530 N/µm |
| Preload class D GD | 11200 N |
| Static axial stiffness, preload class D | 765 N/µm |
| Calculation factor f | 1.24 |
| Calculation factor f1 | 1 |
| Calculation factor f2A | 1 |
| Calculation factor f2B | 1.04 |
| Calculation factor f2C | 1.09 |
| Calculation factor f2D | 1.15 |
| Calculation factor fHC | 1 |
| Calculation factor f0 | 16.5 |
| Mass bearing | 24 kg |
Company Profile
| Worktime |
9:00-18:00 pm |
| Phone |
+852(3)1591338 |
