NK95-26-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 NK95-26-XL model number is decoded

envelope 95×115×26 mm: 95 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 83 kN and C0 137 kN at the 95 mm seat; the C/C0 ratio of 0.61 is characteristic of a needle bearing — high static rating relative to dynamic in a compact 115 mm outside diameter the fatigue load limit Cur is 24.5 kN, the limiting speed 4,850 r/min and the thermal reference speed 3,300 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 0.87 kN/mm and per millimetre of width 3.19 kN/mm — the reason 26 mm-wide needle bearings routinely replace much larger ball or roller positions mass is 490 g, just 0.16 g per mm² of projected 115×26 mm envelope, which keeps unbalanced forces low in fast-actuating linkages with a 95 mm bore this is a heavy-industrial bearing: 490 g of stiff ring and roller set, specified where rigidity matters more than speed The hardness requirement is unforgiving: below about 58 HRC the 95 mm journal brinels under the 137 kN static rating, and roughness above raceway finish accelerates roller wear Reading the NK 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 -XL means this is an X-life bearing — Schaeffler's upgraded performance level with smoother raceways, so the 83 kN C rating and longer nominal life come without an envelope change. Typical applications include hydraulic and pneumatic pump eccentrics, copying and printing machine mechanisms and agricultural machine pivots and linkages, where the 115 mm outside diameter and 83 kN dynamic rating match the duty. In hydraulic and pneumatic pump eccentrics the unit fits a compact 95 mm seat, and in copying and printing machine mechanisms the 490 g mass keeps unbalanced forces low in fast linkages. Designers also specify it for agricultural machine pivots and linkages, relying on the 26 mm width and the published 137 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.
• Open ends draw contamination directly onto the needles; specify sealed or shielded positions in dusty environments rather than relying on grease alone.