Printing machinery often combines high cycle speed with tight mechanical timing. Feed, registration, transfer and other cam-driven mechanisms can therefore make follower noise, lubricant condition and the cleanliness of the contact path visible maintenance issues. the application guidance places EP-KR22 through EP-KR52 in the primary screening range and specifically calls out high-speed rotation, ink compatibility and noise control.
Model range and speed reference
| EP model | D* (mm) | Stud thread | Speed reference | Selection note |
|---|---|---|---|---|
| EP-KR22 / EP-KRV22 | 22 | M10×1.25 | 17,000 rpm | Compact starting point for faster, lighter mechanisms. |
| EP-KR30 / EP-KRV30 | 30 | M12×1.5 | 14,000 rpm | Useful mid-size reference for a larger stud interface. |
| EP-KR35 / EP-KRV35 | 35 | M16×1.5 | 10,000 rpm | Larger mounting envelope where stiffness becomes more important. |
| EP-KR40 / EP-KRV40 | 40 | M18×1.5 | 8,500 rpm | Mid/upper range for repeated cam contact. |
| EP-KR47 / EP-KRV47 | 47 | M20×1.5 | 7,000 rpm | Large end of many printing mechanisms in the project screening range. |
| EP-KR52 / EP-KRV52 | 52 | M20×1.5 | 7,000 rpm | Upper end of the printing range defined in the application requirements. |
Printing-specific selection priorities
A change in follower noise can be an early indication of lubrication loss, surface damage or alignment problems. Compare the removed bearing with the cam track rather than replacing it in isolation.
If ink mist, paper dust or cleaning fluids can reach the follower, state that exposure in the RFQ. Material and lubricant compatibility should be confirmed for the ordered configuration, not assumed from the series name.
Registration and transfer mechanisms depend on repeatable cam motion. Stud seating, track contact and the actual machine geometry can influence motion consistency as much as the model code.
Replacement check before the press goes back into service
Confirm outer-ring width, stud thread, shoulder length and available wrench/access space. Matching only the outside diameter can leave a hidden installation mismatch.
Edge contact or a polished band on one side of the outer ring can suggest alignment or track wear. Include those photos with the enquiry.
Note dry surfaces, grease leakage, ink contamination or evidence of wash fluid. This helps separate a lubrication problem from a pure size-replacement problem.
State whether the follower belongs to feed, transfer, registration or another cam-driven assembly, plus the running speed/cycle information available from the machine.
Review a printing-machine cam follower replacement
Send the existing model, dimensions, quantity, machine section, operating speed and contamination conditions. We will screen the EP-KR22 to EP-KR52 range and verify the physical interface before recommending a candidate.