Shaft And Bearings TRIZ Cases
- Conductive Roll Composition for Leak Discharge and Resistance Stability
A phase-separated rubber roll with carbon black and crosslinked polyurethane cuts leak discharge and keeps resistance stable across environments.
- Conveyor Roller Tapered Sleeve Fixation Against Axial Displacement
A protrusion-and-clearance fixation keeps tapered conveyor sleeves from shifting under high loads while preventing lubricant leakage and contamination.
- Quick-Release Roller Hub for Replaceable Sleeve Fixing
Axial hub extensions lock into sleeve recesses to replace gluing, spread force evenly, prevent tearing, and keep bearings cleaner.
- Developing Roll Surface Topology to Suppress Toner Fusion
Multi-scale protrusions on a developing roll cut contact area and toner adhesion, suppressing fusion and filming during electrophotography.
- Electrophotographic Fixing Member With PFPE Gradient for Toner Release
A PFPE-rich surface gradient in a fluororesin fixing member sustains toner release under long-term abrasion and thin-paper use.
- Hollow Magnetic Cylinder Shrink-Fit Assembly for Lower Inertia
A hollow magnetizable cylinder shrink-fitted to hardened steel journals cuts weight and inertia while preserving run-out and registration control.
- Paper Conveying Roller Interlock for Anti-Slip Attachment
Mechanical interlocking grooves and protrusions stop roller slip while allowing stable mounting and easy removal without adhesives.
- Charging Roll Surface Layer for Uniform End-of-Life Charging
Dual-size particles and controlled resin coverage keep charging uniform and prevent stripes, unevenness, and fog late in roll life.