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 |