Products

Product groups

LBB Components

Components for Linear Ball Bearings

HIRT linear ball bearings and components are synonymous with precision and are available both as complete units and as individual components – shaft, ball cage and housing. Each component is manufactured to the highest precision to ensure a customised, preloaded and backlash-free linear ball bearing offering high efficiency and long-term reliability.

Components for Linear Ball Bearings
Guide shafts

Guide shafts

HIRT guide shafts are hardened, ground and lapped to ISO h3 tolerance class. Roundness and cylindricity are within ISO h1 tolerance class. During the finishing process, the guide shafts are individually hand-lapped to ensure maximum precision and surface quality. In combination with HIRT housings and ball cages, they provide backlash-free, smooth operation without unwanted stick-slip effect and ensure a long and reliable service life – even under demanding operating conditions. Special versions for customer-specific applications are available on request.

Ball Cages

Ball Cages

HIRT ball cages are the central component of high-precision linear guides. They are manufactured using state-of-the-art production processes and drawing on many years of experience. The smallest ball cage is designed for shaft diameters from 2 mm and ball diameters from 0.5 mm. High-precision balls are used, which are tested for tight tolerances and high surface quality using specialised sorting processes. In combination with HIRT guide shafts and sleeves, they ensure high running accuracy and load-bearing capacity as well as a long and reliable service life.

Housings

Housings

HIRT guide housings are hardened on all sides and precision-ground to ensure high accuracy and surface quality. The bore is pre-honed to -2 /-4 µm and forms the basis for the finishing process. During this process, the bore is finished by precision honing, whereby the guide shaft, ball cage and housing are individually hand-fitted. This process ensures high-precision, smooth-running linear ball bearings without unwanted stick-slip effect and high repeatability.