NUTR50110 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 NUTR50110 model number is decoded

envelope 50×110×32 mm: the 110 mm outside diameter is the track-running surface — a thick-walled outer ring over a 50 mm bore — and the 32 mm width sets the contact width on the mating track the catalogue lists C 76 kN and C0 130 kN for the NUTR double-row full-complement yoke-type track roller; the C/C0 ratio of 0.58 reflects a rolling-element pack sized for heavy static track loading, and the 30.0 mm radial section gives the outer ring its bending stiffness fatigue load limit Cur is 17.9 kN at 50 mm bore, equivalent to 1.52 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 50 mm bore takes the mounting pin or shaft; across the 32 mm contact width the dynamic rating works out to 2.38 kN per millimetre of rolling-element complement mass is 1.69 kg (1690 g), or 0.48 g per mm² of the 110×32 mm track envelope — inertia that the drive must accelerate on every index of the cam 50 mm pin bore marks the medium range: mounting forces and fits become critical, and the 1690 g mass calls for proper induction or press tooling rather than hand fitting Two roller rows across the 32 mm width provide C 76 kN and C0 130 kN, with the thick outer ring profiled to tolerate track misalignment Typical applications include conveyor transfer and diverting stations, robotic arm linear axes and automotive welding jig rollers, where the 110 mm track diameter and 76 kN dynamic rating match the duty. In conveyor transfer and diverting stations the unit fits a compact 50 mm seat, and in robotic arm linear axes the 1.69 kg mass is part of the rotor inertia calculation. Designers also specify it for automotive welding jig rollers, relying on the 32 mm width and the published 130 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. Check the mating track hardness and flatness — a soft or scalloped rail fails before the 110 mm outer ring does.

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.
• Check the mating track hardness and flatness — a soft or scalloped rail fails before the 110 mm outer ring does.
• 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.