Wheels for carts

We are inquiring about recommendations for wheels to be used on
A-frame carts for storing heavy, fragile panels for a substantial
length of time. The panels are lacquer over a carved plaster
substrate within a metal frame.

We are considering using appropriately padded McMaster-Carr A-frame
2000 carts (item Number 2570T22) with locking casters.  This way the
panels can be deinstalled directly onto the storage equipment and
can be moved as necessary on the equipment, thus eliminating
handling.

We anticipate that the panels on the carts will weigh up to 500 lbs.
The panels will be transported between the gallery where they are
currently hung, a temporary storage area in the museum and the
conservation lab. The floors in these areas and the corridors range
from wood to bumpy granite to linoleum to concrete.

We need wheels that will allow for easy transport over the floors,
minimize vibration during transit, and that will not deform during
periods that the panels remain static in storage.

Any recommendations will be appreciated.  Please let us know if the
wheels you recommend are associated with special types of casters.
Thanks,

Rhonda Wozniak, Objects Conservator
Wendy Jessup, Consulting Conservator for the Move
Carnegie Museum of Art


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                  Conservation DistList Instance 15:33
                 Distributed: Friday, October 19, 2001
                       Message Id: cdl-15-33-022
                                  ***