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This Rev-A-Shelf 4B Series swivel bearing is the rotating pivot at the center of a full circle lazy Susan, giving the shelf its smooth, continuous rotation without a built-in stop.
A lazy Susan shelf rotates because a bearing at its center converts the shelf's turning force into smooth, low-friction motion. This 10-inch bearing fills that role for full circle shelves, the round, disc-shaped shelves common in corner base cabinets. The no-stop version spins freely through a full 360 degrees, so there is no built-in rotation limit controlling where the shelf parks. That suits installations where continuous spin is preferred and any rotation control is handled elsewhere in the cabinet design or by the shelf support hardware.
The bearing is aluminum throughout, a material choice that keeps the component light relative to steel and holds up well in the damp-prone, enclosed environment of a base cabinet. Aluminum also resists the surface corrosion that can develop on bare steel hardware over time in kitchen and bath cabinetry. The 4B Series designation places this bearing in a well-established Rev-A-Shelf hardware line, which makes sourcing a compatible shaft, shelf support, or replacement straightforward when building or servicing a lazy Susan assembly.
Cabinet shops building new corner-cabinet lazy Susan assemblies use this bearing as the pivot component for a full circle shelf. Contractors and homeowners replacing a worn or failing center bearing on an existing unit reach for it as a drop-in service part. Designers specifying a no-stop rotation behavior for a kitchen or pantry corner cabinet will find the open-spin characteristic of this bearing matches that intent. Because the 10-inch size is specific to shelf assemblies that call for that diameter, confirm the required bearing diameter against the existing shelf or shaft hardware before ordering. For installations that need a rotation stop, the 4BS Series bearing covers that configuration. For a 7-inch bearing in the same no-stop, full circle design, the 4B-7 Series is the parallel option.
The 4B Series, which includes this bearing, has no built-in rotation stop and allows continuous 360-degree spin. The 4BS Series adds a stop mechanism that limits rotation at a set point. Choose 4B for free-spinning installations and 4BS when a controlled stop is needed.
No. This bearing is matched to full circle shelf geometry. For kidney or D-shaped lazy Susan shelves, the 4BS Series in the corresponding diameter is the correct choice.
This SKU is the swivel bearing only. A compatible center shaft and shelf supports are separate components within the Rev-A-Shelf lazy Susan hardware line.
Yes, provided the existing assembly uses a 10-inch full circle bearing with no stop. Confirm the diameter and stop configuration of the original before ordering.
Specify this 10-inch aluminum bearing when the job calls for a no-stop, full circle lazy Susan pivot that holds up in a cabinet environment and fits within the Rev-A-Shelf 4B hardware family.
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