Bidirectional thrust tapered roller Bearings 2THR947220
| Bearing number: |
7008 CB/HCP4AL |
| Size (mm): |
68x40x15 |
| Bore Diameter (mm): |
68 |
| Outer Diameter (mm): |
40 |
| Width (mm): |
15 |
| d: |
40 mm |
| D: |
68 mm |
| B: |
15 mm |
Product Details
| Bearing number |
7008 CB/HCP4AL |
| Size (mm) |
68x40x15 |
| Bore Diameter (mm) |
68 |
| Outer Diameter (mm) |
40 |
| Width (mm) |
15 |
| d |
40 mm |
| D |
68 mm |
| B |
15 mm |
| d1 |
50.95 mm |
| d2 |
49.87 mm |
| D2 |
58.88 mm |
| b |
1.5 mm |
| C1 |
7.8 mm |
| C2 |
3.6 mm |
| C3 |
2.6 mm |
| r1,2 - min. |
1 mm |
| r3,4 - min. |
0.6 mm |
| a |
14.8 mm |
| da - min. |
44.6 mm |
| db - min. |
44.6 mm |
| Da - max. |
63.4 mm |
| Db - max. |
64.8 mm |
| ra - max. |
1 mm |
| rb - max. |
0.6 mm |
| dn |
51.6 mm |
| Basic dynamic load rating - C |
7.4 kN |
| Basic static load rating - C0 |
5.6 kN |
| Fatigue load limit - Pu |
0.236 kN |
| Limiting speed for grease lubrication |
34000 r/min |
| Limiting speed for oil lubrication |
53000 mm/min |
| Ball - Dw |
4.762 mm |
| Ball - z |
26 |
| Gref |
2.22 cm3 |
| Calculation factor - f0 |
9.8 |
| Preload class A - GA |
24 N |
| Preload class B - GB |
48 N |
| Preload class C - GC |
145 N |
| Calculation factor - f |
1 |
| Calculation factor - f2A |
1 |
| Calculation factor - f2B |
1.02 |
| Calculation factor - f2C |
1.05 |
| Calculation factor - fHC |
1.01 |
| Preload class A |
30 N/micron |
| Preload class B |
40 N/micron |
| Preload class C |
63 N/micron |
| r1,2 min. |
1 mm |
| r3,4 min. |
0.6 mm |
| da min. |
44.6 mm |
| db min. |
44.6 mm |
| Da max. |
63.4 mm |
| Db max. |
64.8 mm |
| ra max. |
1 mm |
| rb max. |
0.6 mm |
| Basic dynamic load rating C |
9.95 kN |
| Basic static load rating C0 |
9.3 kN |
| Fatigue load limit Pu |
0.236 kN |
| Attainable speed for grease lubrication |
34000 r/min |
| Attainable speed for oil-air lubrication |
53000 r/min |
| Ball diameter Dw |
4.762 mm |
| Number of balls z |
26 |
| Reference grease quantity Gref |
2.22 cm³ |
| Preload class A GA |
24 N |
| Static axial stiffness, preload class A |
30 N/µm |
| Preload class B GB |
48 N |
| Static axial stiffness, preload class B |
40 N/µm |
| Preload class C GC |
145 N |
| Static axial stiffness, preload class C |
63 N/µm |
| Calculation factor f |
1.04 |
| Calculation factor f1 |
1 |
| Calculation factor f2A |
1 |
| Calculation factor f2B |
1.02 |
| Calculation factor f2C |
1.05 |
| Calculation factor fHC |
1.01 |
| Calculation factor f0 |
9.8 |
| Mass bearing |
0.2 kg |
Company Profile
| Worktime |
9.00--18.00 |
| Phone |
0065-31591338 |
| Fax |
0065-31591338 |