Planetary Synchronizer Cone for ZF Truck Transmissions

This planetary synchronizer cone is offered for ZF truck transmission rebuilding enquiries. Match the cone to the gearbox assembly and synchronizer position.

Compare the inside and outside diameters, cone profile, height and engagement geometry. Include the gearbox identification and the original component's markings in the enquiry.

Send the gearbox code, part number or component markings, dimensions and quantity. Include the gear position and photographs of the mating components where available.

Contact TOSEN for a quotation or browse Transmission Parts.

The planetary synchronizer cone is the conical friction component of a synchronizer position associated with the planetary section of a ZF truck gearbox. When a shift is made at that position, the cone provides the surface against which the mating synchronizer elements work to match the speeds of the rotating members before engagement. The component is supplied for rebuilding enquiries at part level, and the gearbox assembly with the synchronizer position it serves is identified before the order is placed. The designation distinguishes the cone from the synchronizer parts serving other sections of the same gearbox.

• Component: planetary synchronizer cone, a part-level friction component
• Application: ZF truck transmissions
• Role: conical friction surface at its synchronizer position
• Selection: gearbox assembly and synchronizer position

The cone is matched to the gearbox assembly and to the synchronizer position, because the position defines the geometry the cone must reproduce. The inside and outside diameters are measured from the original, and the cone profile, the height and the engagement geometry complete the comparison. The gearbox identification and the markings on the original component anchor the order, so the enquiry describes the exact position being serviced rather than a generic cone.

• Position check: gearbox assembly and synchronizer position
• Diameters: inside and outside, measured from the original
• Geometry: cone profile, height and engagement geometry
• Anchors: gearbox identification plus original markings

TOSEN checks each planetary cone enquiry against the gearbox identification and the synchronizer position recorded by the buyer. The diameter, profile and height details measured from the original component are reviewed against the order, and the quantity with the destination completes the record. The quotation rests on the position the cone will actually serve.

What does the planetary synchronizer cone do?

The cone provides the conical friction surface at a synchronizer position associated with the planetary section of the gearbox, working with the mating synchronizer elements to match rotating speeds before a shift completes. The cone carries no gear teeth of its own; the engagement geometry around it connects the component to the parts it works with. The product is that single friction component.

How is this cone matched to a ZF gearbox assembly?

Matching runs through the gearbox identification and the synchronizer position, read from the gearbox being rebuilt. The planetary section serves specific positions, so the position recorded with the assembly identification defines the cone the order needs. Markings on the original component support the identification where the position alone leaves room for doubt.

Which dimensions confirm the correct planetary cone?

The inside and outside diameters establish the basic fit, and the height of the cone follows. The cone profile and the engagement geometry complete the set, because those features define how the component works with the mating synchronizer elements. All four are measured from the original before the order is placed.

What should a planetary cone enquiry for a ZF rebuild include?

The enquiry carries the gearbox identification, the synchronizer position and the markings from the original component, together with the measured dimensions and the quantity. Photographs of the removed cone and its mating parts support the comparison. On that basis TOSEN verifies the cone against the assembly before the quotation is issued.