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This Rev-A-Shelf 4BM1 bottom-mount shaft provides the vertical support needed to anchor a single wood tray in the 4WLS wood lazy susan series, keeping the shelf rotating smoothly and securely on its axis.
A bottom-mount shaft is the structural backbone of a wood tray lazy susan. It mounts to the cabinet floor and holds the tray at the right height so it clears the base, rotates freely, and stays centered during use. Without the correct shaft, the tray either sits too low, binds on the cabinet floor, or lacks the stability to carry a loaded shelf through a full spin. This 4-inch zinc shaft is the right spec for a single wood tray in the 4WLS line, making it the part to reach for when building a new installation or replacing a worn or missing component in an existing one.
The shaft is zinc, which gives it the surface hardness and resistance to everyday cabinet conditions that a bare steel or plastic part would not match. The 4BM series hardware is designed to work as a system, so this shaft pairs directly with 4WLS wood trays and 4BM series bearings and supports rather than requiring adaptation. The bottom-mount configuration keeps the hardware at the floor of the cabinet rather than running a center pole through the shelf stack, which simplifies single-tray builds and keeps the tray surface clear.
This shaft is the right choice when building or restoring a single wood tray lazy susan in a base cabinet corner using Rev-A-Shelf 4WLS components. Cabinet shops assembling custom corner units, installers replacing hardware in an existing Rev-A-Shelf susan, and homeowners refreshing an older installation will all find a direct match here. It is a single-shelf part, so if the project calls for two or more stacked trays, the appropriate multi-shelf shaft is the better fit.
It is designed for the Rev-A-Shelf 4WLS wood lazy susan series within the 4BM hardware family. Use it for single wood tray configurations in that line.
No. This shaft is configured for one wood tray. A multi-shelf installation requires the appropriate shaft sized and rated for the number of shelves in that build.
Yes, provided the existing unit is a Rev-A-Shelf 4WLS single wood tray susan in the 4BM series. Match the height and series before ordering to confirm a direct replacement.
When a 4WLS wood tray needs a stable, correctly sized anchor at the cabinet floor, this zinc bottom-mount shaft is the matched part that keeps the shelf turning reliably for the long run.
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