PWTR45100-2RS-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 PWTR45100-2RS-XL model number is decoded

envelope 45×100×32 mm: the 100 mm outside diameter is the track-running surface — a thick-walled outer ring over a 45 mm bore — and the 32 mm width sets the contact width on the mating track the catalogue lists C 56 kN and C0 86 kN for the PWTR sealed double-row full-complement yoke-type track roller; the C/C0 ratio of 0.65 reflects a rolling-element pack sized for heavy static track loading, and the 27.5 mm radial section gives the outer ring its bending stiffness fatigue load limit Cur is 11.1 kN at 45 mm bore, equivalent to 1.24 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 45 mm bore takes the mounting pin or shaft; across the 32 mm contact width the dynamic rating works out to 1.75 kN per millimetre of rolling-element complement mass is 1.396 kg (1396 g), or 0.44 g per mm² of the 100×32 mm track envelope — inertia that the drive must accelerate on every index of the cam 45 mm pin bore marks the medium range: mounting forces and fits become critical, and the 1396 g mass calls for proper induction or press tooling rather than hand fitting The 2RS seals make the unit greased for life: use it where wash-down, dust or lack of access rules out relubrication No thermal reference speed is published — the 1,300 r/min limiting speed is the design ceiling, set by roller and seal kinematics As an X-life (-XL) bearing it benefits from the optimised surface finish that reduces friction and raises the fatigue strength behind the 11.1 kN Cur value. 2RS means two side contact seals: the sealed roller excludes contamination without a separate shield arrangement, at the published limiting speed of 1,300 r/min. Typical applications include linear rail and profile track guidance, automatic assembly machine carriages and glass and ceramic line conveyors, where the 100 mm track diameter and 56 kN dynamic rating match the duty. In linear rail and profile track guidance the unit fits a compact 45 mm seat, and in automatic assembly machine carriages the 1.396 kg mass is part of the rotor inertia calculation. Designers also specify it for glass and ceramic line conveyors, relying on the 32 mm width and the published 86 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 100 mm outer ring does.