NA2202-2RSR 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 NA2202-2RSR model number is decoded

envelope 15×35×13.8 mm: the 35 mm outside diameter is the track-running surface — a thick-walled outer ring over a 15 mm bore — and the 13.8 mm width sets the contact width on the mating track the catalogue lists C 7.6 kN and C0 9.9 kN for the NA22 sealed yoke-type track roller with inner ring; the C/C0 ratio of 0.77 reflects a rolling-element pack sized for heavy static track loading, and the 10.0 mm radial section gives the outer ring its bending stiffness fatigue load limit Cur is 1.39 kN at 15 mm bore, equivalent to 0.51 kN of dynamic rating per millimetre — the limiting speed is 3,400 r/min and, as for HR1 track rollers, no thermal reference speed is published the 15 mm bore takes the mounting pin or shaft; across the 13.8 mm contact width the dynamic rating works out to 0.55 kN per millimetre of rolling-element complement mass is 75 g, or 0.16 g per mm² of the 35×13.8 mm track envelope — inertia that the drive must accelerate on every index of the cam at 15 mm pin bore this size balances the 35 mm outside diameter against machineability of the adjacent parts — the most frequently specified band in the HR1 range Reading NA22..2RSR: sealed flangeless yoke roller with inner ring; the 13.8 mm-wide unit needs lateral location from the adjacent structure The inner ring means no hard journal is required — machine the pin to normal tolerance, fit the sealed roller, and forget relubrication for the design life The sealed 2RSR execution protects the rolling elements in dirty conveyors and cam drives; seal lip drag is the reason for the conservative speed rating. Typical applications include agricultural and textile cam followers, packaging machine timing mechanisms and robotic arm linear axes, where the 35 mm track diameter and 7.6 kN dynamic rating match the duty. In agricultural and textile cam followers the unit fits a compact 15 mm seat, and in packaging machine timing mechanisms the 75 g mass keeps follower kinetics light. Designers also specify it for robotic arm linear axes, relying on the 13.8 mm width and the published 9.9 kN static rating. Yoke lugs must support the pin on both sides over its full length — single-sided support turns the pin into a cantilever beam. Flangeless STO/RSTO/RNA22/NA22 rollers need external axial location; circlips or shoulders must control end float or the roller walks off the track.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Yoke lugs must support the pin on both sides over its full length — single-sided support turns the pin into a cantilever beam.
• Flangeless STO/RSTO/RNA22/NA22 rollers need external axial location; circlips or shoulders must control end float or the roller walks off the track.
• Full-complement NATV/NUTR/PWTR rollers make heat and flat-spot easily — slow continuous rotation is fine, stationary load on a turning track is not.