RNAO12X22X12-TV-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 RNAO12X22X12-TV-XL model number is decoded

envelope 12×22×12 mm: 12 mm seat is the hardened and ground shaft journal itself — there is no inner ring, with a thin 5.0 mm radial section packed with small-diameter needle rollers C is 11.3 kN and C0 9.9 kN at the 12 mm seat; the C/C0 ratio of 1.14 is characteristic of a needle bearing — high static rating relative to dynamic in a compact 22 mm outside diameter the fatigue load limit Cur is 1.77 kN, the limiting speed 26,000 r/min and the thermal reference speed 19,700 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 0.94 kN/mm and per millimetre of width 0.94 kN/mm — the reason 12 mm-wide needle bearings routinely replace much larger ball or roller positions mass is 19 g, just 0.07 g per mm² of projected 22×12 mm envelope, which keeps unbalanced forces low in fast-actuating linkages at 12 mm bore this is one of the smallest HR1 executions — chosen where a 22 mm envelope must carry line-contact loads that no miniature ball bearing could take The shaft itself is the inner raceway: harden to 58–64 HRC and finish-grind to the catalogue journal tolerance, or the 9.9 kN static rating cannot be used With no ribs the rollers can be arranged very freely in the 12 mm width, giving C 11.3 kN at only 22 mm outside diameter — the most compact radial unit in the HR1 needle section The -XL suffix is the Schaeffler X-life mark: interchangeable envelope with the basic bearing, but higher load capacity and lower running temperature at the 26,000 r/min limit. Reading -TV: an injection-moulded polyamide cage guides the rolling elements — the lightweight choice that keeps the mass at 19 g in the 22 mm envelope. Typical applications include textile machine heald and cam shafts, agricultural machine pivots and linkages and connecting-rod small ends, where the 22 mm outside diameter and 11.3 kN dynamic rating match the duty. In textile machine heald and cam shafts the unit fits a compact 12 mm seat, and in agricultural machine pivots and linkages the 19 g mass keeps unbalanced forces low in fast linkages. Designers also specify it for connecting-rod small ends, relying on the 12 mm width and the published 9.9 kN static rating. On reciprocating duty ensure the stroke rotates the full needle set, or brinelling occurs at the same roller positions. Keep the specified radial clearance; an oversized shaft or heavy interference removes it and the needles bind hot immediately.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• On reciprocating duty ensure the stroke rotates the full needle set, or brinelling occurs at the same roller positions.
• Keep the specified radial clearance; an oversized shaft or heavy interference removes it and the needles bind hot immediately.
• Needle bearings are pure-radial units — any thrust must be taken by separate washers or an adjacent bearing, especially on flangeless RNAO/NAO.