RNA4836-XL 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 RNA4836-XL model number is decoded

envelope 195×225×45 mm: 195 mm seat is the hardened and ground shaft journal itself — there is no inner ring, with a thin 15.0 mm radial section packed with small-diameter needle rollers C is 219 kN and C0 550 kN at the 195 mm seat; the C/C0 ratio of 0.40 is characteristic of a needle bearing — high static rating relative to dynamic in a compact 225 mm outside diameter the fatigue load limit Cur is 81 kN, the limiting speed 2,420 r/min and the thermal reference speed 1,510 r/min; for small needle bearings the reference speed can exceed the kinematic limit, so the lower of the two governs the application dynamic capacity per millimetre of bore is 1.12 kN/mm and per millimetre of width 4.87 kN/mm — the reason 45 mm-wide needle bearings routinely replace much larger ball or roller positions mass is 2.68 kg (2680 g), just 0.26 g per mm² of projected 225×45 mm envelope, which keeps unbalanced forces low in fast-actuating linkages 195 mm bore, 225 mm outside diameter: at this size the 550 kN C0 rating and rigid full-complement pack replace multi-bearing arrangements in compact heavy-duty designs The hardness requirement is unforgiving: below about 58 HRC the 195 mm journal brinels under the 550 kN static rating, and roughness above raceway finish accelerates roller wear The thin 15.0 mm section makes the 2680 g bearing sensitive to seat geometry — a tapered or lobed journal preloads part of the needle set and shows up as local pitting -XL means this is an X-life bearing — Schaeffler's upgraded performance level with smoother raceways, so the 219 kN C rating and longer nominal life come without an envelope change. Typical applications include planetary gear bearings, small electric motor accessory drives and gearbox selector and change linkages, where the 225 mm outside diameter and 219 kN dynamic rating match the duty. In planetary gear bearings the unit fits a compact 195 mm seat, and in small electric motor accessory drives the 2.68 kg mass is part of the rotor inertia calculation. Designers also specify it for gearbox selector and change linkages, relying on the 45 mm width and the published 550 kN static rating. Without an inner ring the shaft is the raceway: 58–64 HRC and a ground, polished journal are mandatory, not recommendations. On reciprocating duty ensure the stroke rotates the full needle set, or brinelling occurs at the same roller positions.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Without an inner ring the shaft is the raceway: 58–64 HRC and a ground, polished journal are mandatory, not recommendations.
• On reciprocating duty ensure the stroke rotates the full needle set, or brinelling occurs at the same roller positions.
• Adding an IR inner ring changes the envelope logic: the same outer assembly then fits a smaller shaft — recheck bore, clearance and ratings when substituting.