TIMKEN EE291250-90090 Tapered Roller Bearing Assemblies
| Bearing number: |
71811 CD/HCP4 |
| Size (mm): |
72x55x9 |
| Bore Diameter (mm): |
72 |
| Outer Diameter (mm): |
55 |
| Width (mm): |
9 |
| d: |
55 mm |
| D: |
72 mm |
| B: |
9 mm |
Product Details
| Bearing number |
71811 CD/HCP4 |
| Size (mm) |
72x55x9 |
| Bore Diameter (mm) |
72 |
| Outer Diameter (mm) |
55 |
| Width (mm) |
9 |
| d |
55 mm |
| D |
72 mm |
| B |
9 mm |
| d1 |
60.7 mm |
| d2 |
60.7 mm |
| D1 |
66.5 mm |
| r1,2 - min. |
0.3 mm |
| r3,4 - min. |
0.15 mm |
| a |
13 mm |
| da - min. |
57 mm |
| db - min. |
57 mm |
| Da - max. |
70 mm |
| Db - max. |
71.2 mm |
| ra - max. |
0.3 mm |
| rb - max. |
0.15 mm |
| dn |
61.3 mm |
| Basic dynamic load rating - C |
10.1 kN |
| Basic static load rating - C0 |
10.8 kN |
| Fatigue load limit - Pu |
0.455 kN |
| Limiting speed for grease lubrication |
22000 r/min |
| Limiting speed for oil lubrication |
32000 mm/min |
| Ball - Dw |
4.762 mm |
| Ball - z |
29 |
| Gref |
0.88 cm3 |
| Calculation factor - f0 |
17.1 |
| Preload class A - GA |
55 N |
| Preload class B - GB |
165 N |
| Preload class C - GC |
330 N |
| Calculation factor - f |
1 |
| Calculation factor - f2A |
1 |
| Calculation factor - f2B |
1.1 |
| Calculation factor - f2C |
1.18 |
| Calculation factor - fHC |
1.02 |
| Preload class A |
59 N/micron |
| Preload class B |
101 N/micron |
| Preload class C |
150 N/micron |
| r1,2 min. |
0.3 mm |
| r3,4 min. |
0.15 mm |
| da min. |
57 mm |
| db min. |
57 mm |
| Da max. |
70 mm |
| Db max. |
71.2 mm |
| ra max. |
0.3 mm |
| rb max. |
0.15 mm |
| Basic dynamic load rating C |
10.1 kN |
| Basic static load rating C0 |
10.8 kN |
| Fatigue load limit Pu |
0.455 kN |
| Attainable speed for grease lubrication |
22000 r/min |
| Attainable speed for oil-air lubrication |
32000 r/min |
| Ball diameter Dw |
4.762 mm |
| Number of balls z |
29 |
| Reference grease quantity Gref |
0.88 cm³ |
| Preload class A GA |
55 N |
| Static axial stiffness, preload class A |
59 N/µm |
| Preload class B GB |
165 N |
| Static axial stiffness, preload class B |
101 N/µm |
| Preload class C GC |
330 N |
| Static axial stiffness, preload class C |
150 N/µm |
| Calculation factor f |
1.27 |
| Calculation factor f1 |
1 |
| Calculation factor f2A |
1 |
| Calculation factor f2B |
1.1 |
| Calculation factor f2C |
1.18 |
| Calculation factor fHC |
1.02 |
| Calculation factor f0 |
17.1 |
| Mass bearing |
0.073 kg |
Company Profile
| Worktime |
9.00--18.00 |
| Phone |
0065-31591338 |
| Fax |
0065-31591338 |