NUKR35 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 NUKR35 model number is decoded

envelope 16×35×52 mm: the 35 mm outside diameter is the track-running surface — a thick-walled outer ring over a 16 mm stud — and the 52 mm overall stud-and-roller length sets the required bracket clearance the catalogue lists C 15.3 kN and C0 19 kN for the NUKR double-row full-complement stud-type track roller; the C/C0 ratio of 0.81 reflects a rolling-element pack sized for heavy static track loading, and the 9.5 mm radial section gives the outer ring its bending stiffness fatigue load limit Cur is 2.48 kN at 16 mm stud, equivalent to 0.96 kN of dynamic rating per millimetre — the limiting speed is 6,500 r/min and, as for HR1 track rollers, no thermal reference speed is published the 16 mm threaded stud clamps directly into the machine bracket; over the roller running width the dynamic rating works out to 0.29 kN per millimetre of rolling-element complement within the 52 mm overall stud length mass is 164 g, or 0.09 g per mm² of the 35×52 mm track envelope — inertia that the drive must accelerate on every index of the cam the 16 mm stud shank falls in the small band, the workhorse size for gearbox planetary positions, hydraulic pumps and general cam and linkage duty Reading the designation: no eccentric collar is fitted — the roller centre is fixed by the stud axis, with labyrinth-style protection at the faces The outer ring is axially guided by the rolling elements against the stud head and thrust washer; the clamping faces must be square so the 164 g roller runs without cantilever bending Typical applications include agricultural and textile cam followers, packaging machine timing mechanisms and robotic arm linear axes, where the 35 mm track diameter and 15.3 kN dynamic rating match the duty. In agricultural and textile cam followers the threaded stud bolts directly to the frame, and in packaging machine timing mechanisms the 164 g mass keeps follower kinetics light. Designers also specify it for robotic arm linear axes, relying on the 52 mm stud length and the published 19 kN static rating. Never hammer the stud or use the hex socket as a press point during mounting; thread or socket damage renders the 52 mm stud unusable. The eccentric collar throw is small (typically around 1 mm); it removes clearance, it cannot repair a grossly misplaced bracket.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Never hammer the stud or use the hex socket as a press point during mounting; thread or socket damage renders the 52 mm stud unusable.
• The eccentric collar throw is small (typically around 1 mm); it removes clearance, it cannot repair a grossly misplaced bracket.
• Sealed PP/2RS followers are life-lubricated; open KR/NUKR executions need the stud greaseway serviced on a fixed interval.