Description
Product Description
KR72 cam follower bearing
EP-KR72 stud type cam follower bearing with 72 mm outside diameter, M24 x 1.5 metric stud thread and CF24-1 cross-reference designation.
EP-KR72 uses the same M24 x 1.5 stud, 29 mm roller width and axial dimensions as KR62, but expands the running diameter to 72 mm. The CF24-1 reference and the larger outer ring are the primary clues for this size.
Its listed mass is 1040 g compared with 790 g for KR62, while B1 max remains 80.1 mm. This combination shows why weight or outside diameter can be more informative than axial length when the two M24 rows are compared.
EP-KR72 is listed with D = 72 mm, C = 29 mm, stud diameter 24 mm and M24 x 1.5 thread. The legacy WERB references shown for this row are NAKD72 and NAKD72V.
Key Specifications
EP-KR72 uses the M24 x 1.5 stud interface shown above. Its C and C0 entries remain in the rating table without an added load unit because that unit is not printed in the project size table.
Full Dimension Table
Use the drawing for EP-KR72 to locate D, C, the stud diameter, thread and axial lengths before measuring the removed part. Those interfaces are the primary replacement checks; the cross-reference code should agree with the dimensions rather than override them.
The running-surface note for EP-KR72 allows cylindrical or spherical execution depending on design. Confirm which surface profile the machine requires before choosing between the KR and KRV routes.
| Model | D* (mm) | C (mm) | d1 stud (mm) | Thread | G1 (mm) | B max (mm) | B1 max (mm) | B2 (mm) | B3 (mm) | C1 (mm) | rs min (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| EP-KR72 | 72 | 29 | 24 | M24 x 1.5 | 25 | 30.6 | 80.1 | 49.5 | 11 | 0.8 | 1.0 |
Rating and Cross-Reference Data
| Model | Eccentric e (mm)* | Dynamic C** | Static C0** | Limit speed (rpm) | Mass (g) | WERB old | WERB V old | IKO reference |
|---|---|---|---|---|---|---|---|---|
| EP-KR72 | 0.4 | 2160 | 2210 | 6500 | 1040 | NAKD72 | NAKD72V | CF24-1 |
Eccentric value e = 0.4 mm belongs to the related KRE/KRVE execution for EP-KR72. The C/C0 columns are reproduced without a unit because none is printed in the table; confirm the unit convention before calculation.
Selection and Replacement Notes
Use EP-KR72 and CF24-1 to locate the candidate row, then verify the dimensions that matter on this machine. For this size, thread M24 x 1.5, roller diameter and roller width should agree with the removed follower or drawing before running-surface and lubrication details are reviewed.
Inspect the contact band while EP-KR72 is still in the mechanism if access allows. A centred, even band supports the size check; edge polishing or grooving is a reason to examine the rail, bracket and stud alignment instead of assuming a new follower alone will resolve the wear.
Seventy-Two-Millimetre Roller on Shared M24 Geometry
A KR72 check begins with D = 72 mm, C = 29 mm and M24 x 1.5 at the stud. Once those dimensions agree, CF24-1 can be used as a cross-reference search term. If the measured diameter is closer to 62 mm, move back to KR62 rather than assuming the “-1” suffix is interchangeable.
The 72 mm and 62 mm rows share the same G1, B maximum, B1 maximum, B2, B3 and corner-radius entries. That means the running diameter carries most of the dimensional distinction in a side-by-side replacement review. A clear front view with a caliper across D is therefore particularly useful.
KR72 lists 6,500 rpm as limit speed and e = 0.40 mm for the eccentric variant. For heavy transfer systems, note shock events, track joints and contamination as part of the application description. Those operating conditions can matter even when nominal rotational speed is far below the tabulated limit.
Inspect the rail or cam for local flattening, weld transitions or debris indentation. A large roller may bridge small defects differently from a smaller one, and changing diameter to mask a damaged track is not a substitute for restoring the intended track geometry.
Applications for EP-KR72
Material handling & heavy conveyors
Large track-guided carriers and transfer systems where the follower has to fit a larger stud and roller envelope.
Heavy indexing & cam mechanisms
Industrial indexing mechanisms and cam drives with larger track geometry and mounting interfaces.
Large machine-tool mechanisms
Heavy auxiliary guide or indexing functions where the mounting face and stud support are substantial.
Large packaging & converting equipment
Cam-driven stations using larger followers where track wear and service access need review.
Industrial rail-following systems
General machinery that uses a large stud-mounted roller against a defined track.
Automation & transfer equipment
Larger automated transfer mechanisms when the measured interface and duty suit the selected size.
EP-KR72 should be treated as the 72 mm member of the M24 platform when reviewing heavy conveyors, indexing cams or large transfer equipment. Confirm the larger running circle before deciding that an existing KR62 position can accept it.
Related Products and Nearby Sizes
Use EP-KR62 as the essential same-thread comparison for EP-KR72. EP-KR80 is the next upper step and changes both the roller width to 35 mm and the mounting thread to M30 x 1.5.
EP-KR62 Cam Follower Bearing | CF24 Needle Roller
EP-KR62 stud type cam follower bearing with 62 mm outside diameter, M24 x 1.5 metric stud thread and CF24 cross-reference designation.
View specificationsEP-KR72 Cam Follower Bearing | CF24-1 Cross Reference
EP-KR72 stud type cam follower bearing with 72 mm outside diameter, M24 x 1.5 metric stud thread and CF24-1 cross-reference designation.
View specificationsEP-KR80 Heavy Duty Cam Follower | CF30 Cross Reference | M30
EP-KR80 stud type cam follower bearing with 80 mm outside diameter, M30 x 1.5 metric stud thread and CF30 cross-reference designation.
View specificationsFAQ
What IKO reference is shown for EP-KR72?
The cross-reference table shows CF24-1 on the same size row as EP-KR72. Use that designation as a cross-reference search aid and verify D, C, stud thread, running-surface profile and any suffix-specific execution before replacement.
What thread does EP-KR72 use?
The listed stud thread for EP-KR72 is M24 x 1.5.
What is the related KRV or eccentric designation?
The paired KRV designation is EP-KRV72. If the machine is designed for eccentric adjustment, the naming convention for the corresponding eccentric executions is EP-KRE72 / EP-KRVE72; the table lists e = 0.4 mm for the size row.
What information should I send for a quote?
For EP-KR72, provide CF24-1 if available, measured 72 mm D, 29 mm C, M24 x 1.5 thread, quantity, track-joint condition and photographs of the bracket and running path. Include duty details where shock loading occurs.
Get a Quote for EP-KR72
For EP-KR72, combine the 72 mm outside-diameter measurement with a photo of the M24 stud and track. This confirms the larger member of the pair and gives useful context for checking contact alignment.
