Description
Product Description
KR80 stud cam follower 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.
EP-KR80 starts the M30 x 1.5 group with an 80 mm outer diameter and 35 mm roller width. KR85 and KR90 retain the same stud, width and listed axial geometry, so the outside diameter again becomes the primary model selector.
The KR80 row shows B1 max = 100 mm, B2 = 63 mm and B3 = 15 mm, with a mass of 1550 g. These larger dimensions make mounting-face support and service handling important parts of the replacement check.
EP-KR80 is listed with D = 80 mm, C = 35 mm, stud diameter 30 mm and M30 x 1.5 thread. The legacy WERB references shown for this row are NAKD80 and NAKD80V.
Key Specifications
EP-KR80 uses the M30 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-KR80 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-KR80 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-KR80 | 80 | 35 | 30 | M30 x 1.5 | 32 | 37 | 100 | 63 | 15 | 1.0 | 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-KR80 | 0.5 | 2830 | 3700 | 5000 | 1550 | NAKD80 | NAKD80V | CF30 |
Eccentric value e = 0.5 mm belongs to the related KRE/KRVE execution for EP-KR80. 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-KR80 and CF30 to locate the candidate row, then verify the dimensions that matter on this machine. For this size, thread M30 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-KR80 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.
M30 Platform: Identify the 80 mm Running Diameter
KR80, KR85 and KR90 all use a 30 mm stud with M30 x 1.5 thread and C = 35 mm. They also share the same listed axial dimensions and rating-row values. The buyer therefore needs a reliable D measurement: 80 mm identifies KR80, while 85 and 90 mm belong to the two larger rows.
The cross-reference sequence is CF30 for KR80, CF30-1 for KR85 and CF30-2 for KR90. These codes are useful for organizing a parts search, but the progression should be confirmed at the roller itself. An old record that simply says CF30 can be incomplete after years of machine modifications.
The rating table lists a 5,000 rpm limit-speed value and e = 0.50 mm for this M30 family. It also prints C/C0 numbers without a load unit. Do not convert those numbers to N or kN without confirmation; for a heavy-duty application, obtain the correct unit and combine it with actual load and duty data.
At this size, inspect the stud support, nut seating face and surrounding structure for movement. A 1550 g follower and a wide 35 mm contact surface can reveal track or bracket problems through fretting and asymmetric wear. Photograph those signs before cleaning them away during disassembly.
Applications for EP-KR80
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-KR80 is the smallest D value within the M30 x 1.5 group shown here. Application cards for heavy material handling or large cam mechanisms should be read only after confirming the 80 mm running diameter rather than the 85/90 mm alternatives.
Related Products and Nearby Sizes
Compare EP-KR80 with the combined EP-KR85 / EP-KR90 page because all three rows use the same M30 thread and 35 mm roller width. EP-KR72 is the lower boundary where the stud returns to M24 and C drops to 29 mm.
EP-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 specificationsEP-KR85 / EP-KR90 Cam Follower | CF30-1 / CF30-2 Heavy Duty
EP-KR85 / EP-KR90 stud type cam follower bearing with 85 / 90 mm outside diameter, M30 x 1.5 metric stud thread and CF30-1 /…
View specificationsFAQ
What IKO reference is shown for EP-KR80?
The cross-reference table shows CF30 on the same size row as EP-KR80. 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-KR80 use?
The listed stud thread for EP-KR80 is M30 x 1.5.
What is the related KRV or eccentric designation?
The paired KRV designation is EP-KRV80. If the machine is designed for eccentric adjustment, the naming convention for the corresponding eccentric executions is EP-KRE80 / EP-KRVE80; the table lists e = 0.5 mm for the size row.
What information should I send for a quote?
For EP-KR80, send CF30 or the legacy code, 80 mm D, 35 mm C, M30 x 1.5 thread, quantity, mounting-face condition, track width and a photo showing how the large stud is supported.
Get a Quote for EP-KR80
An EP-KR80 RFQ should state the 80 mm outer diameter explicitly. The M30 x 1.5 thread is shared with the 85 and 90 mm rows, so diameter confirmation is essential before the larger follower group is quoted.
