Bearing 7012B KOYO
Manufacturers of all Boyal Industrial Pte ltd. Angular Contact Ball Bearings are represented in our 22x7x7 Size (mm) partial list of clients. Contact Gary for a 22x7x7 complete Bearing 7012B KOYO list of clients and 22 Bore Diameter (mm) projects.
| Bearing number: | 727 CD/HCP4A |
| Size (mm): | 22x7x7 |
| Bore Diameter (mm): | 22 |
| Outer Diameter (mm): | 7 |
| Width (mm): | 7 |
| d: | 7 mm |
| D: | 22 mm |
| B: | 7 mm |
Product Details
| Bearing number | 727 CD/HCP4A |
| Size (mm) | 22x7x7 |
| Bore Diameter (mm) | 22 |
| Outer Diameter (mm) | 7 |
| Width (mm) | 7 |
| d | 7 mm |
| D | 22 mm |
| B | 7 mm |
| d1 | 12.6 mm |
| d2 | 12.6 mm |
| D1 | 17.4 mm |
| r1,2 - min. | 0.3 mm |
| r3,4 - min. | 0.2 mm |
| a | 5.5 mm |
| da - min. | 9.4 mm |
| db - min. | 9.4 mm |
| Da - max. | 19.6 mm |
| Db - max. | 20.2 mm |
| ra - max. | 0.3 mm |
| rb - max. | 0.2 mm |
| dn | 13.6 mm |
| Basic dynamic load rating - C | 3 kN |
| Basic static load rating - C0 | 1.2 kN |
| Fatigue load limit - Pu | 0.049 kN |
| Limiting speed for grease lubrication | 95000 r/min |
| Limiting speed for oil lubrication | 150000 mm/min |
| Ball - Dw | 3.969 mm |
| Ball - z | 9 |
| Gref | 0.162 cm3 |
| Calculation factor - f0 | 8.4 |
| Preload class A - GA | 12 N |
| Preload class B - GB | 24 N |
| Preload class C - GC | 48 N |
| Preload class D - GD | 96 N |
| Calculation factor - f | 1 |
| Calculation factor - f2A | 1 |
| Calculation factor - f2B | 1.01 |
| Calculation factor - f2C | 1.03 |
| Calculation factor - f2D | 1.06 |
| Calculation factor - fHC | 1.01 |
| Preload class A | 13 N/micron |
| Preload class B | 17 N/micron |
| Preload class C | 23 N/micron |
| Preload class D | 33 N/micron |
| r1,2 min. | 0.3 mm |
| r3,4 min. | 0.2 mm |
| da min. | 9.4 mm |
| db min. | 9.4 mm |
| Da max. | 19.6 mm |
| Db max. | 20.2 mm |
| ra max. | 0.3 mm |
| rb max. | 0.2 mm |
| Basic dynamic load rating C | 2.96 kN |
| Basic static load rating C0 | 1.16 kN |
| Fatigue load limit Pu | 0.049 kN |
| Attainable speed for grease lubrication | 95000 r/min |
| Attainable speed for oil-air lubrication | 150000 r/min |
| Ball diameter Dw | 3.969 mm |
| Number of balls z | 9 |
| Reference grease quantity Gref | 0.162 cm³ |
| Preload class A GA | 12 N |
| Static axial stiffness, preload class A | 13 N/µm |
| Preload class B GB | 24 N |
| Static axial stiffness, preload class B | 17 N/µm |
| Preload class C GC | 48 N |
| Static axial stiffness, preload class C | 23 N/µm |
| Preload class D GD | 96 N |
| Static axial stiffness, preload class D | 33 N/µm |
| Calculation factor f | 1.02 |
| Calculation factor f1 | 1 |
| Calculation factor f2A | 1 |
| Calculation factor f2B | 1.01 |
| Calculation factor f2C | 1.03 |
| Calculation factor f2D | 1.06 |
| Calculation factor fHC | 1.01 |
| Calculation factor f0 | 8.4 |
| Mass bearing | 0.012 kg |