NATR40-PP 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 NATR40-PP model number is decoded

envelope 40×80×32 mm: the 80 mm outside diameter is the track-running surface — a thick-walled outer ring over a 40 mm bore — and the 32 mm width sets the contact width on the mating track the catalogue lists C 32 kN and C0 59 kN for the NATR yoke-type track roller with cage and axial guidance; the C/C0 ratio of 0.54 reflects a rolling-element pack sized for heavy static track loading, and the 20.0 mm radial section gives the outer ring its bending stiffness fatigue load limit Cur is 8.4 kN at 40 mm bore, equivalent to 0.80 kN of dynamic rating per millimetre — the limiting speed is 850 r/min and, as for HR1 track rollers, no thermal reference speed is published the 40 mm bore takes the mounting pin or shaft; across the 32 mm contact width the dynamic rating works out to 1.00 kN per millimetre of rolling-element complement mass is 795 g, or 0.31 g per mm² of the 80×32 mm track envelope — inertia that the drive must accelerate on every index of the cam the 40 mm pin bore places this bearing in the medium band, where the 80 mm envelope already carries ratings in the tens of kilonewtons At 40 mm bore and 795 g the roller mounts on a standard pin; yoke mounting means the pin, not a stud, carries the clamp load -PP protection suits cams and rails that are washed down or run in dust; exceeding the 850 r/min speed ceiling overheats the lips rather than just accelerating wear. Typical applications include woodworking machine feed tracks, cam drives and indexing tables and packaging machine timing mechanisms, where the 80 mm track diameter and 32 kN dynamic rating match the duty. In woodworking machine feed tracks the unit fits a compact 40 mm seat, and in cam drives and indexing tables the 795 g mass keeps follower kinetics light. Designers also specify it for packaging machine timing mechanisms, relying on the 32 mm width and the published 59 kN static rating. 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. The crowned outer profile tolerates only small skew; a track that departs by more than the catalogue angle still causes edge loading.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• 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.
• The crowned outer profile tolerates only small skew; a track that departs by more than the catalogue angle still causes edge loading.
• Check the mating track hardness and flatness — a soft or scalloped rail fails before the 80 mm outer ring does.