NUTR35 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 NUTR35 model number is decoded

envelope 35×72×29 mm: the 72 mm outside diameter is the track-running surface — a thick-walled outer ring over a 35 mm bore — and the 29 mm width sets the contact width on the mating track the catalogue lists C 45 kN and C0 66 kN for the NUTR double-row full-complement yoke-type track roller; the C/C0 ratio of 0.68 reflects a rolling-element pack sized for heavy static track loading, and the 18.5 mm radial section gives the outer ring its bending stiffness fatigue load limit Cur is 8.9 kN at 35 mm bore, equivalent to 1.29 kN of dynamic rating per millimetre — the limiting speed is 2,100 r/min and, as for HR1 track rollers, no thermal reference speed is published the 35 mm bore takes the mounting pin or shaft; across the 29 mm contact width the dynamic rating works out to 1.55 kN per millimetre of rolling-element complement mass is 630 g, or 0.30 g per mm² of the 72×29 mm track envelope — inertia that the drive must accelerate on every index of the cam at 35 mm pin bore this is a mainstream industrial size — conveyor drives, winches and medium gearboxes use the 29 mm width as a standard mounting space No thermal reference speed is published — the 2,100 r/min limiting speed is the design ceiling, set by roller and seal kinematics Two roller rows across the 29 mm width provide C 45 kN and C0 66 kN, with the thick outer ring profiled to tolerate track misalignment Typical applications include automatic assembly machine carriages, automotive welding jig rollers and linear rail and profile track guidance, where the 72 mm track diameter and 45 kN dynamic rating match the duty. In automatic assembly machine carriages the unit fits a compact 35 mm seat, and in automotive welding jig rollers the 630 g mass keeps follower kinetics light. Designers also specify it for linear rail and profile track guidance, relying on the 29 mm width and the published 66 kN static rating. 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. 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

• 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.
• 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 72 mm outer ring does.