NATV20-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 NATV20-PP model number is decoded

envelope 20×47×25 mm: the 47 mm outside diameter is the track-running surface — a thick-walled outer ring over a 20 mm bore — and the 25 mm width sets the contact width on the mating track the catalogue lists C 20.3 kN and C0 42.5 kN for the NATV full-complement yoke-type track roller with axial guidance; the C/C0 ratio of 0.48 reflects a rolling-element pack sized for heavy static track loading, and the 13.5 mm radial section gives the outer ring its bending stiffness fatigue load limit Cur is 6 kN at 20 mm bore, equivalent to 1.02 kN of dynamic rating per millimetre — the limiting speed is 1,300 r/min and, as for HR1 track rollers, no thermal reference speed is published the 20 mm bore takes the mounting pin or shaft; across the 25 mm contact width the dynamic rating works out to 0.81 kN per millimetre of rolling-element complement mass is 245 g, or 0.21 g per mm² of the 47×25 mm track envelope — inertia that the drive must accelerate on every index of the cam at 20 mm pin bore this size balances the 47 mm outside diameter against machineability of the adjacent parts — the most frequently specified band in the HR1 range The crowned outside surface of the 47 mm outer ring spreads contact stress when the cam track departs slightly from parallel, reducing edge loading At 20 mm bore and 245 g the roller mounts on a standard pin; yoke mounting means the pin, not a stud, carries the clamp load The -PP suffix fits contact lip seals on both sides, retaining the factory grease and excluding water and dust; seal friction is reflected in the 1,300 r/min limiting speed. Typical applications include packaging machine timing mechanisms, woodworking machine feed tracks and agricultural and textile cam followers, where the 47 mm track diameter and 20.3 kN dynamic rating match the duty. In packaging machine timing mechanisms the unit fits a compact 20 mm seat, and in woodworking machine feed tracks the 245 g mass keeps follower kinetics light. Designers also specify it for agricultural and textile cam followers, relying on the 25 mm width and the published 42.5 kN static rating. The crowned outer profile tolerates only small skew; a track that departs by more than the catalogue angle still causes edge loading. 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.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• The crowned outer profile tolerates only small skew; a track that departs by more than the catalogue angle still causes edge loading.
• 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.
• Check the mating track hardness and flatness — a soft or scalloped rail fails before the 47 mm outer ring does.