Description
Product Description
KR26 track roller needle bearing
EP-KR26 stud type cam follower bearing with 26 mm outside diameter, M10 x 1.25 metric stud thread and CF10-1 cross-reference designation.
EP-KR26 uses the same M10 x 1.25 mounting thread and 12 mm roller width as KR22, but its outer ring grows to 26 mm. It is therefore a good example of why thread matching must be paired with roller-diameter measurement.
The listed 36.2 mm B1 maximum length and 23 mm B2 dimension remain aligned with KR22, while the mass rises to 58 g. A buyer comparing a removed part should prioritize the 26 mm D value instead of relying on overall length alone.
EP-KR26 is listed with D = 26 mm, C = 12 mm, stud diameter 10 mm and M10 x 1.25 thread. The legacy WERB references shown for this row are NAKD26 and NAKD26V.
Key Specifications
EP-KR26 uses the M10 x 1.25 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-KR26 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-KR26 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-KR26 | 26 | 12 | 10 | M10 x 1.25 | 12 | 13.2 | 36.2 | 23 | — | 0.6 | 0.3 |
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-KR26 | 0.3 | 410 | 320 | 17000 | 58 | NAKD26 | NAKD26V | CF10-1 |
Eccentric value e = 0.3 mm belongs to the related KRE/KRVE execution for EP-KR26. 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-KR26 and CF10-1 to locate the candidate row, then verify the dimensions that matter on this machine. For this size, thread M10 x 1.25, 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-KR26 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.
Twenty-Six-Millimetre Roller on the M10 Platform
Use KR26 when the measured running diameter is 26 mm and the mounting interface confirms a 10 mm stud with M10 x 1.25 thread. The 12 mm C width is not unique within this pair, so it should be treated as a confirmation dimension rather than the first discriminator.
The closest same-thread alternative is KR22. Most of the listed axial dimensions are identical, yet the outside diameters differ by four millimetres and the IKO reference changes from CF10 to CF10-1. This makes an outside-diameter check essential whenever the old code ends in a suffix that is hard to read.
The rating row shows e = 0.30 mm for the corresponding eccentric version and a 17,000 rpm limit-speed value. If an eccentric follower is found in the machine, record the direction and purpose of the adjustment before ordering. Replacing an adjustable position with a standard stud can remove the mechanism used to set track clearance.
A 26 mm outer ring may also contact a different portion of the cam than a 22 mm follower. Photographing the rail profile and the wear path helps the buyer verify that a diameter change is not being used accidentally to compensate for track wear or a previous non-standard repair.
Applications for EP-KR26
Machine tools & CNC
Guide tracks, indexing mechanisms and auxiliary slides that use a stud-mounted roller against a defined cam or rail.
Industrial automation
Robot fixtures, transfer units and automated mechanisms where compact mounting and repeated cam motion are common.
Packaging machinery
Feeding, folding and indexing functions driven by cams or profiled tracks.
Conveyor track systems
Guided carriers and transfer mechanisms where the outer ring repeatedly follows a rail.
Precision handling equipment
Inspection, electronics and semiconductor-related mechanisms when the selected size and service conditions match.
Indexing and transfer mechanisms
Rotary or linear indexing assemblies where the stud interface and track geometry must be verified together.
EP-KR26 suits application reviews where the M10 mounting system is already known but a larger 26 mm running diameter is measured. The application cards are not a shortcut around that diameter check, particularly on legacy conveyor or packaging mechanisms that may have been repaired before.
Related Products and Nearby Sizes
Keep EP-KR22 beside EP-KR26 during replacement identification. Their shared M10 x 1.25 thread makes them a natural comparison pair, while EP-KR30 shows the next step to an M12 stud and 30 mm running diameter.
EP-KR22 Cam Follower Bearing | CF10 Metric Stud Type
EP-KR22 stud type cam follower bearing with 22 mm outside diameter, M10 x 1.25 metric stud thread and CF10 cross-reference designation.
View specificationsEP-KR26 Track Roller Bearing | CF10-1 Cross Reference
EP-KR26 stud type cam follower bearing with 26 mm outside diameter, M10 x 1.25 metric stud thread and CF10-1 cross-reference designation.
View specificationsEP-KR30 Cam Follower Bearing | CF12 Cross Reference | M12 Stud
EP-KR30 stud type cam follower bearing with 30 mm outside diameter, M12 x 1.5 metric stud thread and CF12 cross-reference designation.
View specificationsFAQ
What IKO reference is shown for EP-KR26?
The cross-reference table shows CF10-1 on the same size row as EP-KR26. 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-KR26 use?
The listed stud thread for EP-KR26 is M10 x 1.25.
What is the related KRV or eccentric designation?
The paired KRV designation is EP-KRV26. If the machine is designed for eccentric adjustment, the naming convention for the corresponding eccentric executions is EP-KRE26 / EP-KRVE26; the table lists e = 0.3 mm for the size row.
What information should I send for a quote?
For an EP-KR26 quote, provide the CF10-1 or old marking, 26 mm D, 12 mm C, M10 x 1.25 thread, quantity, any eccentric-adjustment requirement and a photo of the mating cam or rail.
Get a Quote for EP-KR26
Confirm the 26 mm roller diameter in an EP-KR26 enquiry even if the M10 x 1.25 thread is already known. That one measurement separates this row from EP-KR22, which shares much of the same mounting geometry.
