Profile rollers for linear guidance system

Advantages of “LRG” profile rollers

-Increased lifetime: When calculating the lifetime, the deformation of the outer ring is taken into account to make sure it remains as rigid as possible. The heat treatment is selected based on the end application. This treatment improves impact resistance and thus increases the lifetime of the product.

-Guidance accuracy and low noise: The accuracy achieved as a result of state-of-the-art manufacturing processes leads to a significant reduction in the noise generated by the contact between the rail and the outer ring.

JESA offers a suitable solution, by applying an ABEC3 tolerance class (KEA striking 0.009 mm) on the outer profile. This makes sure the roughness of the profile in contact is at maximum Ra: 0.3 m.

The resulting drop in the magnitude of harmonics delivers optimum guidance accuracy, low noise and the most negligible vibrations possible.

-Materials and sealing: JESA''S “LRG” rollers are available in steel 100Cr6 or stainless steel 1.4125. These high quality materials are manufactured in Europe. Thorough quality controls are performed on the macro- and microstructures, as well as on the inclusion cleanliness.

Selected by JESA, the cage is suited to the temperature range of the polyamide family.

The sealing by NBR labyrinth seal protects effectively from dust, with a very low friction torque. The guide rollers can be used in temperatures ranging from -35°C to +120°C.

JESA rollers contain a synthetic grease with additives for high pressure (EP). The grease viscosity is suitable for a broad speed range.

Hybrid bearings with Si3N4 ceramic balls can be used up to 270°C. FPM seals with other types of sealing, or even lubrication solutions for vacuum environments are also available on request.

-Running noise: As a result of low friction, optimized lubrication and very high precision, the “LRG” roller presents very low running noise.

-Direct contact: JESA offers direct contact between its customer and the producer/designer. Moreover, all the rollers are Swiss Made.