RNAO80X100X30-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 RNAO80X100X30-XL model number is decoded

envelope 80×100×30 mm: 80 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 80 kN and C0 176 kN at the 80 mm seat; the C/C0 ratio of 0.45 is characteristic of a needle bearing — high static rating relative to dynamic in a compact 100 mm outside diameter the fatigue load limit Cur is 31.5 kN, the limiting speed 5,800 r/min and the thermal reference speed 3,600 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 1.00 kN/mm and per millimetre of width 2.67 kN/mm — the reason 30 mm-wide needle bearings routinely replace much larger ball or roller positions mass is 580 g, just 0.19 g per mm² of projected 100×30 mm envelope, which keeps unbalanced forces low in fast-actuating linkages at 80 mm bore the 100 mm outside diameter and 30 mm width target rolling stands, construction machinery and heavy gearboxes; the limiting speed drops to 5,800 r/min With no ribs the rollers can be arranged very freely in the 30 mm width, giving C 80 kN at only 100 mm outside diameter — the most compact radial unit in the HR1 needle section Cur 31.5 kN and speeds up to 5,800 r/min suit planetary gears, connecting rods and pump eccentrics where space is dictated by the shaft diameter X-life status (-XL) indicates the current Schaeffler premium execution at 80 mm bore; the 176 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 100 mm outside diameter and 80 kN dynamic rating match the duty. In motorcycle and light-vehicle transmissions the unit fits a compact 80 mm seat, and in connecting-rod small ends the 580 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 176 kN static rating. Needle bearings are pure-radial units — any thrust must be taken by separate washers or an adjacent bearing, especially on flangeless RNAO/NAO. Open ends draw contamination directly onto the needles; specify sealed or shielded positions in dusty environments rather than relying on grease alone.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Needle bearings are pure-radial units — any thrust must be taken by separate washers or an adjacent bearing, especially on flangeless RNAO/NAO.
• Open ends draw contamination directly onto the needles; specify sealed or shielded positions in dusty environments rather than relying on grease alone.
• Do not press an RNA/NK assembly in through the outer ring when mounting it on a shaft, and vice versa — rolling forces through the wrong ring bruises the raceways.