NUKR62 bearing: complete specifications & equivalents
The NUKR62 is a ISO 15 radial bearing sized 24 x 62 x 80 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | FAG |
| Bore diameter d | 24 mm |
| Outer diameter D | 62 mm |
| Width B | 80 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | none |
| Basic dynamic load rating C | 40.5 kN |
| Basic static load rating C0 | 55 kN |
| Fatigue load limit Pu | 7.4 kN |
| Limiting speed (mechanical) | 2600 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 795 g |
| Manufacturer designation | NUKR62 |
| Standard | ISO 15 |
| Catalog version | HR1 2026-09-25 |
| Last verified | 2026-09-30 |
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.
Dimensions in inches & nukr-series range
| Bore d | 0.945 in |
|---|---|
| Outer diameter D | 2.441 in |
| Width B | 3.15 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 19 mm |
| Smallest bore in nukr-series | 16 mm |
| Largest outer diameter in nukr-series | 90 mm |
| Width range across nukr-series | 52–100 mm |
| Bore position in nukr-series (smallest first) | 4 of 5 |
| Bore above smallest nukr-series size | 8 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| NUKR62 | ISO 15 | full Dimensions and internal design equivalent — standard interchange. | ISO 15 boundary-dimension envelope; brand-specific OEM equivalents (NSK/FAG/NTN) pending multi-source data. |
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 NUKR62 model number is decoded
envelope 24×62×80 mm: the 62 mm outside diameter is the track-running surface — a thick-walled outer ring over a 24 mm stud — and the 80 mm overall stud-and-roller length sets the required bracket clearance the catalogue lists C 40.5 kN and C0 55 kN for the NUKR double-row full-complement stud-type track roller; the C/C0 ratio of 0.74 reflects a rolling-element pack sized for heavy static track loading, and the 19.0 mm radial section gives the outer ring its bending stiffness fatigue load limit Cur is 7.4 kN at 24 mm stud, equivalent to 1.69 kN of dynamic rating per millimetre — the limiting speed is 2,600 r/min and, as for HR1 track rollers, no thermal reference speed is published the 24 mm threaded stud clamps directly into the machine bracket; over the roller running width the dynamic rating works out to 0.51 kN per millimetre of rolling-element complement within the 80 mm overall stud length mass is 795 g, or 0.16 g per mm² of the 62×80 mm track envelope — inertia that the drive must accelerate on every index of the cam with a 24 mm stud shank the 80 mm width and 40.5 kN C rating suit high-cycle industrial machinery rather than instrument 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 Stud mounting puts all moment load into the bracket — torque the stud nut to the catalogue value, support the shank over its full length, and use the eccentric collar only for its small design adjustment range Typical applications include glass and ceramic line conveyors, linear rail and profile track guidance and printing press sheet-transfer grippers, where the 62 mm track diameter and 40.5 kN dynamic rating match the duty. In glass and ceramic line conveyors the threaded stud bolts directly to the frame, and in linear rail and profile track guidance the 795 g mass keeps follower kinetics light. Designers also specify it for printing press sheet-transfer grippers, relying on the 80 mm stud length and the published 55 kN static rating. The stud must be fully supported and the nut torqued to the catalogue value; a loose follower wears the bracket hole oval and loosens further. The eccentric collar throw is small (typically around 1 mm); it removes clearance, it cannot repair a grossly misplaced bracket.
Typical equipment & failure modes
Common applications
- automatic assembly machine carriages
- agricultural and textile cam followers
- linear rail and profile track guidance
- glass and ceramic line conveyors
Known failure patterns
- stud bending and loosening when the shank is not fully supported by the bracket
- bracket hole fretting and ovalisation under an under-torqued mounting nut
- outer-ring fatigue at the cam contact from overloading beyond the track-rated C0
- flat spots on full-complement followers during short-stroke oscillation
- seal destruction and grease loss above the limiting speed on PP/2RS executions
- edge loading after the crowned profile bottoms out against a badly skewed cam
- eccentric-collar slippage when the lock nut is not re-torqued after adjustment
- lubricant starvation of the stud contact when the relubrication interval is ignored
- stud-thread damage from hammering or from using the hex socket as a press point
Selection pitfalls — read before you substitute
- The stud must be fully supported and the nut torqued to the catalogue value; a loose follower wears the bracket hole oval and loosens further.
- The eccentric collar throw is small (typically around 1 mm); it removes clearance, it cannot repair a grossly misplaced bracket.
- Never hammer the stud or use the hex socket as a press point during mounting; thread or socket damage renders the 80 mm stud unusable.
Frequently asked questions
What are the dimensions of the NUKR62?
The NUKR62 is a NUKR double-row full-complement stud-type track roller with 62 mm outside diameter, 24 mm stud diameter and 80 mm overall length, envelope 24×62×80 mm. Mass is 795 g.
What does the NUKR62 designation mean in the FAG/INA HR1 catalogue?
NUKR62 identifies this NUKR double-row full-complement stud-type track roller in the Schaeffler HR1 rolling bearings catalogue. The envelope is 24×62×80 mm and the catalogue ratings are C 40.5 kN, C0 55 kN, Cur 7.4 kN.
What is the load capacity of the NUKR62?
The basic dynamic load rating C is 40.5 kN and the basic static load rating C0 is 55 kN; the fatigue load limit Cur is 7.4 kN. For track rollers these values already cover the thick-walled outer ring bending case on an unsupported track.
What is the maximum speed of the NUKR62?
HR1 lists a limiting speed of 2,600 r/min for track rollers and no thermal reference speed. The crowned thick-walled outer ring and (on stud types) the stud contact make the limiting speed the governing figure.
How is a stud-type roller like the NUKR62 fitted and adjusted?
The 24 mm threaded stud passes through the bracket and is clamped with its nut and washer against a flat face; torque to the catalogue value and support the shank over its full length. The 62 mm outer ring then runs directly on the cam.
Reviewed & verified by the MPN Base engineering desk against source catalog HR1 2026-09-25 on 2026-09-30. Read our editorial & correction policy.