A chain-driven roller conveyor is used to move pallet loads 150 from storage to shipping.

The pallet is 48  36. For smooth movement over the rollers, the pallet is oriented so that the stringer is aligned with the rollers (i.e., the stringer is perpendicular to the conveyor frames and parallel to the roller length). The WBR dimension is 39. Each pallet load of product weighs 1200 lb. The spacing between pallets is 24. Rollers have a 9 spacing. The conveyor speed is 90 fpm. As the pallets near shipping, they are transferred directly from the roller conveyor to a roller-supported belt conveyor.

a. What are the values of BV, LF, FF, and L for the roller conveyor?

b. If a 36 spacing is desired between pallets on the belt conveyor, what must be its speed?