NAO9X22X12-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 NAO9X22X12-TV-XL model number is decoded

envelope 9×22×12 mm: 9 mm bore accepts a normal-tolerance machined shaft via the integral inner ring, with a thin 6.5 mm radial section packed with small-diameter needle rollers C is 11.3 kN and C0 9.9 kN at the 9 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 17,900 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 1.26 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 23.5 g, just 0.09 g per mm² of projected 22×12 mm envelope, which keeps unbalanced forces low in fast-actuating linkages at 9 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 Because neither ring guides axially, housing and shaft shoulders position the races; uncontrolled end float lets the rollers run off the raceway edges The inner ring gives a 9 mm plain bore inside the 22×12 mm envelope and the flangeless pack delivers C 11.3 kN — a frequent choice in gear change linkages and pumps 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. -TV denotes the PA66 cage: light, quiet and self-lubricating in dry-running moments, but limited by the polymer's continuous-temperature ceiling well below the ring steel's. 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 9 mm seat, and in agricultural machine pivots and linkages the 23.5 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. Without an inner ring the shaft is the raceway: 58–64 HRC and a ground, polished journal are mandatory, not recommendations. 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

• Without an inner ring the shaft is the raceway: 58–64 HRC and a ground, polished journal are mandatory, not recommendations.
• 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.