Support Bearing Unit with HRB (HHF)
High Load Capacity. Long Service Life. Precision Motion.
The HHF is a support bearing unit that optimizes load capacity and stiffness within a compact envelope, offering higher power density and longer service life than conventional bearing solutions. It is designed to support Standard Roller Screws (SRS or URS) with nominal diameters between 8 and 80 mm, and Recirculating Roller Screws (RRS) with nominal diameters between 8 and 125 mm. The HHF can also be readily customized to fit specific application requirements.
It is important that a support bearing's capacity exceed that of the screw it supports, to ensure the most robust design and reliable operation.
The best compact bearing solution to pair with your roller screw.
Description of the HHF, the Support Bearing Unit with Integrated Bearing
The HHF is purpose-built to be the supporting bearing element in a roller screw assembly, positioned so its capacity, stiffness, and lifetime exceed those of the screw it supports. This ensures the bearing is never the limiting factor in the assembly's performance or service life. Standard sizing is matched directly to the SRS, URS, and RRS diameter ranges, simplifying selection when specifying a complete roller screw and bearing system.
Performance
Because the HHF concentrates load-bearing capacity and stiffness into a single compact support unit, it delivers a substantially higher power density and longer service life than conventional bearing arrangements built from stacked standard bearings. Its sealed, lubricated-for-life design also minimizes maintenance requirements over the life of the system.
Applications
The HHF Support Bearing Unit is specified alongside Helix roller screws in applications requiring a robust, low-maintenance support bearing, including:
✦ Industrial automation and material handling
✦ Aerospace and defense actuation
✦ Heavy-duty presses and forming equipment
✦ Precision manufacturing and machine tools
✦ Test and simulation equipment
✦ Medical and surgical robotics
Engineered for Your System
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