RNA2203-2RSR 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 RNA2203-2RSR model number is decoded

envelope 22×40×15.8 mm: the 40 mm outside diameter is the track-running surface — a thick-walled outer ring over a 22 mm bore — and the 15.8 mm width sets the contact width on the mating track the catalogue lists C 9.9 kN and C0 14.2 kN for the RNA22 sealed yoke-type track roller without inner ring; the C/C0 ratio of 0.70 reflects a rolling-element pack sized for heavy static track loading, and the 9.0 mm radial section gives the outer ring its bending stiffness fatigue load limit Cur is 1.87 kN at 22 mm bore, equivalent to 0.45 kN of dynamic rating per millimetre — the limiting speed is 3,000 r/min and, as for HR1 track rollers, no thermal reference speed is published the 22 mm bore takes the mounting pin or shaft; across the 15.8 mm contact width the dynamic rating works out to 0.63 kN per millimetre of rolling-element complement mass is 94 g, or 0.15 g per mm² of the 40×15.8 mm track envelope — inertia that the drive must accelerate on every index of the cam at 22 mm pin bore this size balances the 40 mm outside diameter against machineability of the adjacent parts — the most frequently specified band in the HR1 range The 40 mm crowned-profile thick-walled outer ring runs on the track; at 22 mm the pin seat must still be hardened to 58–64 HRC despite the sealed execution RNA22 is the sealed yoke-type track roller without inner ring: 2RSR contact seals on both sides retain the factory grease and exclude dust, and the needles run on a hardened pin Reading the suffix: 2RSR is the FAG/INA code for rubbing lip seals at both faces, making the 22 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 40 mm track diameter and 9.9 kN dynamic rating match the duty. In printing press sheet-transfer grippers the unit fits a compact 22 mm seat, and in glass and ceramic line conveyors the 94 g mass keeps follower kinetics light. Designers also specify it for cam drives and indexing tables, relying on the 15.8 mm width and the published 14.2 kN static rating. Sealed PP/2RSR units are greased for life: never add a grease nipple, and respect the lower limiting speed imposed by the rubbing lips. Check the mating track hardness and flatness — a soft or scalloped rail fails before the 40 mm outer ring does.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Sealed PP/2RSR units are greased for life: never add a grease nipple, and respect the lower limiting speed imposed by the rubbing lips.
• Check the mating track hardness and flatness — a soft or scalloped rail fails before the 40 mm outer ring does.
• 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.