Sliding Sleeve for Scania Transmissions

This sliding sleeve is offered for Scania transmission replacement enquiries. The sleeve works with a matching hub and engagement arrangement in the gearbox.

Identify the gearbox model and gear position, then compare the internal and external teeth and sleeve length. Photographs of the original sleeve and its markings help describe the required part.

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 sliding sleeve is the moving component of a synchronizer, carried on its matching hub and shifted axially by the engagement arrangement when a gear is selected. Its teeth connect the hub to the gear being engaged, so the sleeve completes the engagement that the synchronizer elements have prepared. At a Scania gearbox position, the sleeve, the hub and the remaining synchronizer parts operate as one assembly, and the sleeve offered here is supplied for replacement enquiries at component level. Sleeve wear shows at the engagement teeth and at the sliding surfaces.

• Component: sliding sleeve, supplied at component level
• Interaction: works with a matching hub and engagement arrangement
• Application: Scania transmissions
• Wear points: engagement teeth and sliding surfaces

A sleeve order is matched through the gearbox model and the gear position first, because every synchronizer position carries its own sleeve dimensions. The internal teeth must match the hub splines and the external teeth must match the engagement arrangement, so both tooth sets are compared with the original sleeve. Sleeve length completes the dimensional check, since it sets how far the sleeve travels on the hub. Photographs of the removed sleeve and its markings describe the part where the dimensions leave doubt.

• Primary check: gearbox model with the gear position
• Tooth checks: internal teeth against the hub splines
• External teeth: match to the engagement arrangement
• Geometry: sleeve length plus photographs of the markings

TOSEN checks each Scania sliding sleeve enquiry against the gearbox model, the gear position and the tooth details recorded by the buyer. The internal and external tooth counts and the sleeve length from the original part are compared with the order, and the photographs supplied are kept with the record. Quantities and the destination are confirmed before the quotation is issued.

What does a sliding sleeve do inside a gearbox?

The sliding sleeve travels on its hub to connect and disconnect the gear at that synchronizer position, completing the engagement the synchronizer elements have prepared. The shift arrangement moves the sleeve, and the teeth at both ends of the sleeve carry the torque once the gear is engaged. A worn sleeve therefore affects every shift made at its position.

How does the sleeve work with its matching hub?

The hub stays fixed on the shaft and carries the synchronizer, while the sleeve is the part that moves. The internal teeth of the sleeve slide on the hub splines, and the teeth at the sleeve ends engage the gear through the engagement arrangement. Replacing the sleeve without matching the hub risks a fit that only appears at assembly, so both are compared.

Which sleeve details are compared for a Scania order?

The internal teeth are counted against the hub splines, the external teeth against the engagement arrangement, and the overall sleeve length is measured from the original part. The gearbox model and the gear position frame those comparisons, because a sleeve dimensioned for one position will not serve another. Markings on the removed sleeve support the identification.

What should a sliding sleeve enquiry contain?

The enquiry carries the gearbox code, the part number or the component markings, the tooth counts and the sleeve length, together with the quantity. The gear position under repair and photographs of the original sleeve complete the record. With those details, TOSEN can verify the sleeve against the Scania gearbox being rebuilt.