| Bearing number |
661/653 |
| Size (mm) |
79.375x146.05x41.275 |
| Bore Diameter (mm) |
79,375 |
| Outer Diameter (mm) |
146,05 |
| Width (mm) |
41,275 |
| d |
79,375 mm |
| D |
146,05 mm |
| T |
41,275 mm |
| B |
41,275 mm |
| C |
31,75 mm |
| a |
33,4 mm |
| r min. |
3,6 mm |
| r2 min. |
3,2 mm |
| da min. |
96 mm |
| Da |
131 mm |
| db min |
90 mm |
| ra max. |
3,6 mm |
| rb max. |
3,2 mm |
| Db |
139 mm |
| Weight |
2,92 Kg |
| Basic dynamic load rating (C) |
208 kN |
| Basic static load rating (C0) |
301 kN |
| (Grease) Lubrication Speed |
2600 r/min |
| (Oil) Lubrication Speed |
3400 r/min |
| Calculation factor (e) |
0,41 |
| Calculation factor (Y0) |
0,81 |
| Bearing No. |
661/653 |
| r(min) |
3.6 |
| r1(min) |
3.2 |
| Cr |
261 |
| C0r |
301 |
| Cu |
45.3 |
| Grease lub. |
2600 |
| Oil lub. |
3400 |
| a(mm) |
33.4 |
| da |
96.0 |
| db |
90.0 |
| ra(max) |
3.6 |
| rb(max) |
3.2 |
| e |
0.41 |
| Y1 |
1.47 |
| Y0 |
0.81 |
| (Refer.)Mass(kg) |
2.91 |