RNA2208-2RSR bearing: complete specifications & equivalents

Specification table

Source: catalog reference (HR1 2026-09-25) · extracted 2026-09-30

Parameters extracted from the official FAG Rolling Bearings catalogue (HR1 2026-09-25); FAG® is a trademark of Schaeffler Technologies AG & Co. KG, used here for identification only — mpnbase is not an authorized FAG/Schaeffler distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at schaeffler.com.

Cross references & equivalents

Interchange levels: full standard interchange · partial verify parameters · verify manual confirmation required. Links resolve to the equivalent model's specification page where available.

How the RNA2208-2RSR model number is decoded

envelope 48×80×22.7 mm: the 80 mm outside diameter is the track-running surface — a thick-walled outer ring over a 48 mm bore — and the 22.7 mm width sets the contact width on the mating track the catalogue lists C 26 kN and C0 41.5 kN for the RNA22 sealed yoke-type track roller without inner ring; the C/C0 ratio of 0.63 reflects a rolling-element pack sized for heavy static track loading, and the 16.0 mm radial section gives the outer ring its bending stiffness fatigue load limit Cur is 5.4 kN at 48 mm bore, equivalent to 0.54 kN of dynamic rating per millimetre — the limiting speed is 850 r/min and, as for HR1 track rollers, no thermal reference speed is published the 48 mm bore takes the mounting pin or shaft; across the 22.7 mm contact width the dynamic rating works out to 1.15 kN per millimetre of rolling-element complement mass is 530 g, or 0.29 g per mm² of the 80×22.7 mm track envelope — inertia that the drive must accelerate on every index of the cam the 48 mm pin bore places this bearing in the medium band, where the 80 mm envelope already carries ratings in the tens of kilonewtons Choose RNA22 over RSTO where the environment carries abrasives: the 2RSR lips protect the needle complement but cannot be inspected or replaced without scrapping the unit Reading RNA22..2RSR: flangeless yoke roller, sealed for life on both sides, no inner ring; the 22.7 mm width includes the seal recesses Reading the suffix: 2RSR is the FAG/INA code for rubbing lip seals at both faces, making the 48 mm-bore unit greased for life. Typical applications include printing press sheet-transfer grippers, glass and ceramic line conveyors and cam drives and indexing tables, where the 80 mm track diameter and 26 kN dynamic rating match the duty. In printing press sheet-transfer grippers the unit fits a compact 48 mm seat, and in glass and ceramic line conveyors the 530 g mass keeps follower kinetics light. Designers also specify it for cam drives and indexing tables, relying on the 22.7 mm width and the published 41.5 kN static rating. The pin or shaft is part of the bearing system: harden it for RSTO/RNA22 positions, and size its deflection because the roller cannot compensate for a bent pin. Yoke lugs must support the pin on both sides over its full length — single-sided support turns the pin into a cantilever beam.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• The pin or shaft is part of the bearing system: harden it for RSTO/RNA22 positions, and size its deflection because the roller cannot compensate for a bent pin.
• Yoke lugs must support the pin on both sides over its full length — single-sided support turns the pin into a cantilever beam.
• Flangeless STO/RSTO/RNA22/NA22 rollers need external axial location; circlips or shoulders must control end float or the roller walks off the track.