PWTR3072-2RS-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 PWTR3072-2RS-XL model number is decoded

envelope 30×72×29 mm: the 72 mm outside diameter is the track-running surface — a thick-walled outer ring over a 30 mm bore — and the 29 mm width sets the contact width on the mating track the catalogue lists C 41 kN and C0 56 kN for the PWTR sealed double-row full-complement yoke-type track roller; the C/C0 ratio of 0.73 reflects a rolling-element pack sized for heavy static track loading, and the 21.0 mm radial section gives the outer ring its bending stiffness fatigue load limit Cur is 7.3 kN at 30 mm bore, equivalent to 1.37 kN of dynamic rating per millimetre — the limiting speed is 2,200 r/min and, as for HR1 track rollers, no thermal reference speed is published the 30 mm bore takes the mounting pin or shaft; across the 29 mm contact width the dynamic rating works out to 1.41 kN per millimetre of rolling-element complement mass is 697 g, or 0.33 g per mm² of the 72×29 mm track envelope — inertia that the drive must accelerate on every index of the cam the 30 mm pin bore falls in the small band, the workhorse size for gearbox planetary positions, hydraulic pumps and general cam and linkage duty Reading NUTR/PWTR: double-row, no cage, cylindrical rollers rather than needles — the pack is built for shock-dominated heavy track duty at 2,200 r/min PWTR is the sealed double-row full-complement yoke roller: two cylindrical roller rows, 2RS contact seals both sides and the profiled (crowned) running surface on the 72 mm outer ring -XL means this is an X-life bearing — Schaeffler's upgraded performance level with smoother raceways, so the 41 kN C rating and longer nominal life come without an envelope change. The 2RS suffix fits elastomer contact seals on both sides, retaining the life-long grease fill behind the 72 mm outer ring. Typical applications include cam drives and indexing tables, printing press sheet-transfer grippers and woodworking machine feed tracks, where the 72 mm track diameter and 41 kN dynamic rating match the duty. In cam drives and indexing tables the unit fits a compact 30 mm seat, and in printing press sheet-transfer grippers the 697 g mass keeps follower kinetics light. Designers also specify it for woodworking machine feed tracks, relying on the 29 mm width and the published 56 kN static rating. Check the mating track hardness and flatness — a soft or scalloped rail fails before the 72 mm outer ring does. Sealed PP/2RSR units are greased for life: never add a grease nipple, and respect the lower limiting speed imposed by the rubbing lips.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Check the mating track hardness and flatness — a soft or scalloped rail fails before the 72 mm outer ring does.
• Sealed PP/2RSR units are greased for life: never add a grease nipple, and respect the lower limiting speed imposed by the rubbing lips.
• The pin or shaft is part of the bearing system: harden it for RSTO/RNA22 positions, and size its deflection because the roller cannot compensate for a bent pin.