Tin-Plated PTFE Flanged Bushings for Bottling Starwheel Shafts
A bottling-line starwheel can be mounted on a bearing-supported shaft or an auxiliary change-part spindle. This enquiry is limited to a drawing-defined sliding sleeve location where a thin-wall flanged PTFE composite bushing is specified; it is not a universal replacement for the starwheel drive’s rolling bearings.
Confirm the sliding location and hygiene boundary
The SF-1-F tin-plated construction combines a split sleeve and a flange. Identify the supported journal, the flange counterface and whether the shaft rotates continuously or moves only during changeover. Send the complete bearing stack so the sleeve is not inadvertently assigned belt tension, gearbox thrust or alignment duties carried elsewhere.
Operating conditions and selection boundaries
Provide shaft speed, load, start/stop duty and any bottle-jam reaction at this bearing. State whether cleaning liquid can reach the bushing, together with cleaning chemistry, temperature and drying conditions. Tin plating is an outside-finish specification; its presence does not establish food-contact compliance or suitability for a washdown programme.
The reused image shows the component construction. No food-contact, sanitary-design or chemical-resistance approval is claimed for this application.
Specify the exact material standard, alloy or composite construction and any certificate requirements in the enquiry. Different national material designations are not treated as automatic equivalents. Availability and manufacturing details are confirmed in the quotation.
Dimensions and drawing information for quotation
| Drawing feature | Information to provide |
|---|---|
| Bearing location | Drive or auxiliary journal, shaft diameter, support spacing and load path. |
| Flanged sleeve | Installed bore, housing bore, wall thickness, length and flange dimensions. |
| Cleaning exposure | Liquids, concentrations, temperature, frequency and contact boundaries. |
| Procurement documents | Specified composite construction, plating requirement, drawing revision and any compliance documents required. |
Include quantity, units, drawing revision, inspection requirements and delivery destination. Distinguish measured wear from the intended new-part dimensions.
Installation and acceptance checks
Protect the PTFE sliding layer and flange bend during installation. Use the specified housing lead-in and fitting procedure. Check the installed bore, shaft clearance and flange contact after assembly; do not ream or scrape the sliding layer without a manufacturer-approved process.
Confirm the lubrication and inspection plan for the specified material and duty. The application name does not establish a load rating, service-life guarantee or approval for the complete machine.
Frequently asked questions
Does tin plating make the bearing food safe?
No such approval is inferred. List any required compliance documents and actual contact conditions before quotation.
Can it replace the main starwheel rolling bearing?
Not on dimensions alone. Rotation, loading, alignment and retention must be reviewed as a complete arrangement.
What cleaning details are needed?
Provide the agent, concentration, temperature, exposure duration and whether the bearing is directly wetted.
Request a drawing-based quotation
Send the assembly section, component drawing, quantity and operating conditions for bottling starwheel shaft flanged bushings. BONIU will review the geometry, material and installation requirements before confirming the quotation.