RNA6919-ZW-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 RNA6919-ZW-XL model number is decoded

envelope 110×130×63 mm: 110 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 197 kN and C0 440 kN at the 110 mm seat; the C/C0 ratio of 0.45 is characteristic of a needle bearing — high static rating relative to dynamic in a compact 130 mm outside diameter the fatigue load limit Cur is 77 kN, the limiting speed 4,200 r/min and the thermal reference speed 2,550 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 1.79 kN/mm and per millimetre of width 3.13 kN/mm — the reason 63 mm-wide needle bearings routinely replace much larger ball or roller positions mass is 1.46 kg (1460 g), just 0.18 g per mm² of projected 130×63 mm envelope, which keeps unbalanced forces low in fast-actuating linkages with a 110 mm bore this is a heavy-industrial bearing: 1.46 kg of stiff ring and roller set, specified where rigidity matters more than speed Omitting the inner ring frees radial space — at a 110 mm shaft the outer diameter is only 130 mm and the width 63 mm, yet C is 197 kN This bearing accepts axial displacement between shaft and housing because the rollers rotate on the free journal; it locates nothing axially and must be flanked by guide faces -XL means this is an X-life bearing — Schaeffler's upgraded performance level with smoother raceways, so the 197 kN C rating and longer nominal life come without an envelope change. The -ZW double-row pack explains the high C0 of 440 kN in this thin-section bearing — two rows support the static peak that a single row could not. Typical applications include copying and printing machine mechanisms, gearbox selector and change linkages and hydraulic and pneumatic pump eccentrics, where the 130 mm outside diameter and 197 kN dynamic rating match the duty. In copying and printing machine mechanisms the unit fits a compact 110 mm seat, and in gearbox selector and change linkages the 1.46 kg mass is part of the rotor inertia calculation. Designers also specify it for hydraulic and pneumatic pump eccentrics, relying on the 63 mm width and the published 440 kN static rating. Without an inner ring the shaft is the raceway: 58–64 HRC and a ground, polished journal are mandatory, not recommendations. 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

• Without an inner ring the shaft is the raceway: 58–64 HRC and a ground, polished journal are mandatory, not recommendations.
• Needle bearings are pure-radial units — any thrust must be taken by separate washers or an adjacent bearing, especially on flangeless RNAO/NAO.
• 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.