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Underhung
Loft Block with Idlers
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2CC-10819I3
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Idlers
may be added to underhung loft blocks to
carry the weight of the cables and prevent
rubbing against adjacent block side plates.
They are not intended to carry line loads
or to act as deflector or mule blocks. |
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Idler
assemblies consist of one or two 3-1/2 inch
diameter, 3 line Nylon sheaves mounted on
the side of the loft block in a steel housing. |
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Idler
sheaves have 1/4 inch cable grooves with
a 3/8-inch shaft in a 12-gauge steel housing
with two 1/4 inch bolts and pipe spacers
to mount the housing and captivate the cables
in the grooves. |
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When
using idler pulleys, the loft block closest
to the head block should be a full size
multi-line block with grooves for all of
the lift lines. This ensures that fleet
angle and other alignment stresses are not
transferred to the idler pulleys. |
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