RNA4824-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 RNA4824-XL model number is decoded

envelope 130×150×30 mm: 130 mm seat is the hardened and ground shaft journal itself — there is no inner ring, with a thin 10.0 mm radial section packed with small-diameter needle rollers C is 112 kN and C0 239 kN at the 130 mm seat; the C/C0 ratio of 0.47 is characteristic of a needle bearing — high static rating relative to dynamic in a compact 150 mm outside diameter the fatigue load limit Cur is 39.5 kN, the limiting speed 3,600 r/min and the thermal reference speed 2,120 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 0.86 kN/mm and per millimetre of width 3.73 kN/mm — the reason 30 mm-wide needle bearings routinely replace much larger ball or roller positions mass is 730 g, just 0.16 g per mm² of projected 150×30 mm envelope, which keeps unbalanced forces low in fast-actuating linkages 130 mm bore, 150 mm outside diameter: at this size the 239 kN C0 rating and rigid full-complement pack replace multi-bearing arrangements in compact heavy-duty designs Omitting the inner ring frees radial space — at a 130 mm shaft the outer diameter is only 150 mm and the width 30 mm, yet C is 112 kN Reading the RNA48 prefix: a machined (not drawn-cup) outer ring with the needle complement; an inner ring from the IR series can be added later if the shaft cannot be hardened X-life status (-XL) indicates the current Schaeffler premium execution at 130 mm bore; the 239 kN C0 rating reflects the improved rolling-contact geometry. Typical applications include motorcycle and light-vehicle transmissions, connecting-rod small ends and two-stroke and compressor piston pins, where the 150 mm outside diameter and 112 kN dynamic rating match the duty. In motorcycle and light-vehicle transmissions the unit fits a compact 130 mm seat, and in connecting-rod small ends the 730 g mass keeps unbalanced forces low in fast linkages. Designers also specify it for two-stroke and compressor piston pins, relying on the 30 mm width and the published 239 kN static rating. Open ends draw contamination directly onto the needles; specify sealed or shielded positions in dusty environments rather than relying on grease alone. Needle bearings are pure-radial units — any thrust must be taken by separate washers or an adjacent bearing, especially on flangeless RNAO/NAO.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Open ends draw contamination directly onto the needles; specify sealed or shielded positions in dusty environments rather than relying on grease alone.
• Needle bearings are pure-radial units — any thrust must be taken by separate washers or an adjacent bearing, especially on flangeless RNAO/NAO.
• Keep the specified radial clearance; an oversized shaft or heavy interference removes it and the needles bind hot immediately.