NA6916-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 NA6916-ZW-XL model number is decoded

envelope 80×110×54 mm: 80 mm bore accepts a normal-tolerance machined shaft via the integral inner ring, with a thin 15.0 mm radial section packed with small-diameter needle rollers C is 153 kN and C0 300 kN at the 80 mm seat; the C/C0 ratio of 0.51 is characteristic of a needle bearing — high static rating relative to dynamic in a compact 110 mm outside diameter the fatigue load limit Cur is 54 kN, the limiting speed 5,100 r/min and the thermal reference speed 2,900 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 1.91 kN/mm and per millimetre of width 2.83 kN/mm — the reason 54 mm-wide needle bearings routinely replace much larger ball or roller positions mass is 1.522 kg (1522 g), just 0.26 g per mm² of projected 110×54 mm envelope, which keeps unbalanced forces low in fast-actuating linkages at 80 mm bore the 110 mm outside diameter and 54 mm width target rolling stands, construction machinery and heavy gearboxes; the limiting speed drops to 5,100 r/min The inner ring is separable, so the outer-ring/roller assembly can be pressed into the housing first; the 300 kN C0 rating still assumes full rigid support under both rings The integral inner ring brings the bore to 80 mm inside the 110×54 mm envelope; removing that ring gives the corresponding RNA/NK execution and a larger shaft for the same housing -XL means this is an X-life bearing — Schaeffler's upgraded performance level with smoother raceways, so the 153 kN C rating and longer nominal life come without an envelope change. The -ZW double-row pack explains the high C0 of 300 kN in this thin-section bearing — two rows support the static peak that a single row could not. Typical applications include two-stroke and compressor piston pins, motorcycle and light-vehicle transmissions and rocker arms and valve trains, where the 110 mm outside diameter and 153 kN dynamic rating match the duty. In two-stroke and compressor piston pins the unit fits a compact 80 mm seat, and in motorcycle and light-vehicle transmissions the 1.522 kg mass is part of the rotor inertia calculation. Designers also specify it for rocker arms and valve trains, relying on the 54 mm width and the published 300 kN static rating. Keep the specified radial clearance; an oversized shaft or heavy interference removes it and the needles bind hot immediately. On reciprocating duty ensure the stroke rotates the full needle set, or brinelling occurs at the same roller positions.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

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