Right Bearing Block for Drum

The Kranzle large hose reel drum rests on two bearing blocks. Block 40306 is the right-side variant – together with left block 40305 it forms the complete support for the drum axle, enabling free rotation while transferring loads from the mass of the drum with the wound hose to the washer frame.

Application

The right bearing block is installed on the right side of the large hose reel drum. The bearing seat in the block guides the drum axle and absorbs radial and axial loads during operation. The geometry of the block mounting points determines the correct alignment of the drum axle within the washer frame – a deviation on one side causes axle misalignment and uneven loading of both blocks. The right block may have a different geometry or hole arrangement than the left, resulting from the asymmetry of the frame or the positioning of hydraulic components on that side.

Symptoms – When to Replace

• Runout or wobble of the drum during rotation – a worn bearing seat does not guide the axle evenly.
• Cracked block body in the area of the bearing seat or frame mounting points.
• Block play on the washer frame – damaged mounting holes or threads alter drum axle alignment.
• Uneven or stiff drum rotation with a functional bearing – deformed block geometry forces lateral loading on the bearing and axle.
• Asymmetric wear of the drum axle bearing indicating incorrect block alignment on one side.

How to Select the Correct Part

Reference number 40306 identifies exclusively the right-side bearing block variant. Before ordering, confirm that the damaged block is on the right side. When replacing, compare the new block with the removed one in terms of mounting hole arrangement, bearing seat dimension, and any additional holes or seats on the right side. If replacing both blocks simultaneously, order 40305 and 40306 as a pair – installing two blocks of the same variant may prevent correct drum axle alignment.

Compatibility

Kranzle catalogue part. Used among others in large hose reel drums fitted to Kranzle pressure washers. Right-side variant – the left bearing block is a separate part, 40305. Verify compatibility with a specific drum model using reference number 40306 or the drum service diagram.

[faq]

How to determine whether uneven drum rotation results from the right block rather than from the bearing or axle?|After removing the drum, check the bearing seat in the right block – insert the bearing into the seat without installing it and check for radial play. A worn seat has noticeable play between the block body and the bearing outer ring. If the seat is in order, check the bearing itself – crunching or radial play during manual rotation points to the bearing, not the block. A deformed block becomes apparent visually or through failure to sit flat against the frame mounting surface.

What can cause bearing block cracking despite no visible overloading?|The most common cause is uneven tightening of the block mounting points to the frame – uneven contact causes stress concentration at a specific point in the block with every drum rotation. A second factor is a deformed or damaged washer frame forcing incorrect block alignment. Cracks appearing repeatedly in the same location suggest constant overloading resulting from installation geometry, not a one-off impact. 

[/faq]