KRV72-PP bearing: complete specifications & equivalents
The KRV72-PP is a ISO 7063 radial bearing sized 24 x 72 x 80 mm (bore x OD x width) with 2RS sealing. Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | FAG |
| Bore diameter d | 24 mm |
| Outer diameter D | 72 mm |
| Width B | 80 mm |
| Material | GCr15 |
| Seal / shield | 2RS |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | none |
| Basic dynamic load rating C | 36.5 kN |
| Basic static load rating C0 | 86 kN |
| Fatigue load limit Pu | 12.8 kN |
| Limiting speed (mechanical) | 1100 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 1027 g |
| Manufacturer designation | KRV72-PP |
| Standard | ISO 7063 |
| 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 & krv-series range
| Bore d | 0.945 in |
|---|---|
| Outer diameter D | 2.835 in |
| Width B | 3.15 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 24 mm |
| Smallest bore in krv-series | 6 mm |
| Largest outer diameter in krv-series | 90 mm |
| Width range across krv-series | 28–100 mm |
| Bore position in krv-series (smallest first) | 8 of 9 |
| Bore above smallest krv-series size | 18 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| KRV72 | ISO 15 | verify Commonly quoted cross reference; confirm against the target catalog before ordering. | ISO 15 boundary-dimension envelope; seal suffix convention varies by brand (2RS / DDU / LLU / 2RSR) — verify seal design and temperature range. Brand-specific OEM equivalents 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 KRV72-PP model number is decoded
envelope 24×72×80 mm: the 72 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 36.5 kN and C0 86 kN for the KRV full-complement stud-type cam follower; the C/C0 ratio of 0.42 reflects a rolling-element pack sized for heavy static track loading, and the 24.0 mm radial section gives the outer ring its bending stiffness fatigue load limit Cur is 12.8 kN at 24 mm stud, equivalent to 1.52 kN of dynamic rating per millimetre — the limiting speed is 1,100 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 0.46 kN per millimetre of rolling-element complement within the 80 mm overall stud length mass is 1.027 kg (1027 g), or 0.18 g per mm² of the 72×80 mm track envelope — inertia that the drive must accelerate on every index of the cam the 24 mm stud shank falls in the small band, the workhorse size for gearbox planetary positions, hydraulic pumps and general cam and linkage duty The stud must be fully supported and torqued against a flat bracket face; an under-supported cantilever stud bends under the 86 kN static rating and skews the outer ring -PP means sealed both sides with elastomer lips — the roller is greased for life and needs no relubrication fitting in the 80 mm width. Typical applications include printing press sheet-transfer grippers, glass and ceramic line conveyors and cam drives and indexing tables, where the 72 mm track diameter and 36.5 kN dynamic rating match the duty. In printing press sheet-transfer grippers the threaded stud bolts directly to the frame, and in glass and ceramic line conveyors the 1.027 kg mass is part of the rotor inertia calculation. Designers also specify it for cam drives and indexing tables, relying on the 80 mm stud length and the published 86 kN static rating. Full-complement followers trade speed for static capacity — apply the lower limiting speed and expect higher drive torque than a caged KR. 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.
Typical equipment & failure modes
Common applications
- agricultural and textile cam followers
- printing press sheet-transfer grippers
- robotic arm linear axes
- conveyor transfer and diverting stations
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
- Full-complement followers trade speed for static capacity — apply the lower limiting speed and expect higher drive torque than a caged KR.
- 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.
- On eccentric KRE/NUKRE/PWKRE units, re-torque after setting the collar — the adjustment changes the effective stud engagement.
Frequently asked questions
What are the dimensions of the KRV72-PP?
The KRV72-PP is a KRV full-complement stud-type cam follower with 72 mm outside diameter, 24 mm stud diameter and 80 mm overall length, envelope 24×72×80 mm. Mass is 1.027 kg.
What does the KRV72-PP designation mean in the FAG/INA HR1 catalogue?
KRV72-PP identifies this KRV full-complement stud-type cam follower in the Schaeffler HR1 rolling bearings catalogue. The envelope is 24×72×80 mm and the catalogue ratings are C 36.5 kN, C0 86 kN, Cur 12.8 kN.
What is the load capacity of the KRV72-PP?
The basic dynamic load rating C is 36.5 kN and the basic static load rating C0 is 86 kN; the fatigue load limit Cur is 12.8 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 KRV72-PP?
HR1 lists a limiting speed of 1,100 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 KRV72-PP 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 72 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.