Support Bearing Unit with HRB (HHF)
The HHF solution optimizes capacity and space with greater stiffness. Having the highest power density and longer lifetime than any bearing currently available. The HHF can also be customized easily to fit customer needs. The HHF is designed and can be applied to Standard Roller Screws (SRS or URS) with nominal diameters between 8 to 80 mm and for Recirculating Roller Screws (RRS) with nominal diameters between 8 to 125 mm. It is of primary importance that the capacity of the bearing unit exceed the ones of the screw to give the most robust design and reliable operation.
The best compact bearing solution that can be assembled of your roller screw.
Description of the HHF, the support bearing unit with HRB
| Internal Diameter | Ø12, Ø17, Ø20, Ø25, Ø35, Ø50, Ø65, Ø90, Ø100 for standard products |
| External Diameter | Ø47, Ø57, Ø58, Ø74, Ø94, Ø128, Ø164, Ø215, Ø240 for standard products |
| Flanged diameter | Ø77, Ø92, Ø122, Ø144, Ø177, Ø230, Ø292 for standard products |
| Length | 40, 44, 74, 86, 106, 136, 163, 175, 208, 229, 272 |
| Materials | hardened steel, stainless steel |
| Hardness | 58-62 HRc (650- 750HV) |
| Lubrication | grease, oil |
| Loads | bidirectional axial and radial |
| Dynamic capacity | up to 4.0 times compared to SBU or equivalent competitor solutions |
| Static capacity | up to 4.8 times compared to SBU or equivalent competitor solutions |
| Stiffness | extremely high |
| Lifetime | up to 40 times for equivalent stack of ACBB |
| Resistance to shock | very good |
| Coatings | under request |
| Sealing | standard |
| Carriers | can be removed under request |
| Maintenance | lubricated for life. Maintenance free |
| Skidding | none, or negligible |
| Parts | customizable |