RA108-NPP Bearing Unit Interchange Inserts pillow block Latest 2018
| Bearing number: |
71904 CE/HCP4AH |
| Size (mm): |
37x20x9 |
| Bore Diameter (mm): |
37 |
| Outer Diameter (mm): |
20 |
| Width (mm): |
9 |
| d: |
20 mm |
| D: |
37 mm |
| B: |
9 mm |
Product Details
| Bearing number |
71904 CE/HCP4AH |
| Size (mm) |
37x20x9 |
| Bore Diameter (mm) |
37 |
| Outer Diameter (mm) |
20 |
| Width (mm) |
9 |
| d |
20 mm |
| D |
37 mm |
| B |
9 mm |
| d1 |
25.65 mm |
| d2 |
24.4 mm |
| D1 |
31.49 mm |
| K |
0.5 mm |
| C1 |
5.45 mm |
| r1,2 - min. |
0.3 mm |
| r3,4 - min. |
0.15 mm |
| a |
8.5 mm |
| da - min. |
22 mm |
| db - min. |
22 mm |
| Da - max. |
35 mm |
| Db - max. |
36.2 mm |
| ra - max. |
0.3 mm |
| rb - max. |
0.15 mm |
| dn |
26.7 mm |
| Basic dynamic load rating - C |
4.9 kN |
| Basic static load rating - C0 |
2.4 kN |
| Fatigue load limit - Pu |
0.102 kN |
| Limiting speed for grease lubrication |
68000 r/min |
| Limiting speed for oil lubrication |
106000 mm/min |
| Ball - Dw |
4.762 mm |
| Ball - z |
14 |
| Gref |
0.5 cm3 |
| Calculation factor - f0 |
7.8 |
| Preload class A - GA |
26 N |
| Preload class B - GB |
79 N |
| Preload class C - GC |
157 N |
| Calculation factor - f |
1 |
| Calculation factor - f2A |
1 |
| Calculation factor - f2B |
1.05 |
| Calculation factor - f2C |
1.09 |
| Calculation factor - fHC |
1.01 |
| Preload class A |
20 N/micron |
| Preload class B |
31 N/micron |
| Preload class C |
43 N/micron |
| r1,2 min. |
0.3 mm |
| r3,4 min. |
0.15 mm |
| da min. |
22 mm |
| db min. |
22 mm |
| Da max. |
35 mm |
| Db max. |
36.2 mm |
| ra max. |
0.3 mm |
| rb max. |
0.15 mm |
| Basic dynamic load rating C |
4.88 kN |
| Basic static load rating C0 |
2.4 kN |
| Fatigue load limit Pu |
0.102 kN |
| Attainable speed for grease lubrication |
68000 r/min |
| Attainable speed for oil-air lubrication |
106000 r/min |
| Ball diameter Dw |
4.762 mm |
| Number of balls z |
14 |
| Reference grease quantity Gref |
0.5 cm³ |
| Preload class A GA |
26 N |
| Static axial stiffness, preload class A |
20 N/µm |
| Preload class B GB |
79 N |
| Static axial stiffness, preload class B |
31 N/µm |
| Preload class C GC |
157 N |
| Static axial stiffness, preload class C |
43 N/µm |
| Calculation factor f |
1.04 |
| Calculation factor f1 |
1 |
| Calculation factor f2A |
1 |
| Calculation factor f2B |
1.05 |
| Calculation factor f2C |
1.09 |
| Calculation factor fHC |
1.01 |
| Calculation factor f0 |
7.8 |
| Mass bearing |
0.032 kg |
Company Profile
| Worktime |
9.00--18.00 |
| Phone |
0065-31591338 |
| Fax |
0065-31591338 |