Drum Spacer Ring

Brass spacer ring 40316 with a 22mm diameter sets the axial clearance between the components of the hose reel drum assembly. Brass is a deliberate material choice here – corrosion resistance and a low friction coefficient provide durability in a humid environment during cyclic drum rotation.

Application

The ring is installed in the Kranzle hose reel drum assembly as a spacer element. It maintains a defined axial clearance between adjacent drum components, eliminating play and ensuring correct alignment of the moving parts within the assembly. The 22mm diameter determines the fit on the drum shaft or in the drum seat. The component operates in constant contact with the surfaces of adjacent parts – the brass material reduces friction and corrosion on sliding surfaces.

Symptoms – When to Replace

• Axial play in the drum assembly after correct installation – a worn ring no longer maintains the correct clearance between components.
• Visible wear or reduced ring thickness at contact points with adjacent components.
• Ring deformation – an uneven thrust surface or bend affecting the axial alignment of drum components.

How to Select the Correct Part

The basis for selection is reference number 40316 and the 22mm diameter. When replacing, compare the new ring with the removed one in terms of thickness and uniformity of the thrust surfaces – the thickness of the spacer ring is a precision value determining the axial play in the assembly. Do not substitute with a steel variant without verification – brass is a deliberate material selection for operation in the humid environment of the drum. Also check the condition of the surfaces the ring cooperates with – irregularities or pitting on adjacent components will accelerate wear of the new ring.

Compatibility

Kranzle catalogue part. Used among others in Kranzle pressure washer hose reel drums requiring a brass spacer ring of 22mm diameter. Verify compatibility with a specific drum model using reference number 40316 or the drum service diagram.

[faq]

Is the thickness of spacer ring 40316 a standardised dimension or one specific to Kranzle?|The thickness of the spacer ring in a hose reel drum is a design dimension matched to the specific assembly – it is not a standardised component available in general technical supply ranges. Replacing it with a ring of a similar but different thickness will alter the axial play of the drum assembly. In the absence of the original component, the only reliable basis for selection is comparison with the removed ring or reference number 40316.

What does uneven wear on the surface of the brass spacer ring indicate, and what causes it?|Wear concentrated on one side or in one sector of the circumference points to runout or misalignment of the cooperating component – the shaft, drum plate, or another adjacent part. The ring wears unevenly because the load is not distributed symmetrically across its entire surface. Replacing the ring alone will not eliminate the cause of uneven wear – it is worth checking the axial alignment of the shaft and the condition of adjacent components before installing the new ring.

Does spacer ring 40316 need to be replaced at every drum service, or only when visible wear is present?|If the surface condition is good and the thickness is intact – with no wear or deformation – the ring can be retained. Preventive replacement makes sense during a thorough drum service that includes replacement of the swivel connector or bearings, when the assembly is completely disassembled. The cost of a brass ring is negligible compared to the labour of re-disassembling the drum in a short time.

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