These track rollers are designed for use on shafts. The track rollers carry a gothic-arch profiled, double-row angular contact ball bearing on a shouldered pin. The rolling bearing is lubricated for life and sealed on both sides with contact seals (NPP). The track rollers are available in centric and eccentric designs, as well as in stainless (NIRO) (suffix VA).
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Track rollers series FRWS/FRWSE
These track rollers are designed for use on shafts. Unlike series FRW/FRWE, the rolling bearings are not mounted on a pin but on an axle with an internal thread. This allows the track rollers to be bolted from the carriage side using hexagon socket screws DIN 912 or DIN 7984. These series are also supplied in centric and eccentric designs, as well as in stainless (NIRO) (suffix VA).
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Track rollers series NRF/NRFE
These track rollers are designed for use on precision guide rails PFS, PFSH. On a shouldered pin, the one-piece outer ring is supported radially on one or two needle bearings and on two thrust needle bearings or thrust cylindrical roller bearings. The raceways of the track rollers are slightly crowned. This reduces rolling friction under high loads. The one-piece outer ring avoids “edge runners” and ensures long service life. The track rollers are also available in centric, eccentric and stainless (NIRO) designs.
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These track rollers have been developed for use on shaft guides as well as on steel profiles with a matching profile. They represent the most cost-effective solution for the respective application.
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These track rollers correspond in function to series FR 90 etc. However, they were not manufactured with a threaded pin but equipped with an internal thread. They can be fastened from the carriage side using hexagon socket screws.
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Track rollers series KFR/KFRE and KFRS/KFRSE
Shown for completeness only. As a functional part they do not represent an economically sensible unit and should only be used where existing designs require them. Avoid for new designs.View products
