Kop-Flex Industrial Coupling Product Catalog - Form 8887E

Self-aligning Spring Unit (Spring Loaded
Thrust Button)
Gear Spindles
Design Features and Options
The KOP-FLEX design includes a self-aligning spring
unit as an option that will keep the roll end casing erect
(straight-parallel to the mill floor) during roll change, to
allow the rolls to be inserted without the need to support
the roll end casing. The gear spindle roll end casing will
stay in the same position as when the roll is removed.
The spring is designed to be a replaceable component
without any modification to the assembly, or the spring
unit can be used as a shock absorbing unit.
Hub Retainer Nut
The LE and LB design incorporates threaded/screwed
on hub retainer ring. This design eliminates the need
for the external bolting of the hub on the center shaft as
shown on pages 201 and 203 for ME and MB designs
respectively. These bolts can break during operation due
to thrust loads during roll change. The KOP-FLEX-design
eliminates this bolt breaking problem, by using a nut
that is screwed on the end of the shaft to hold the hub
to the center shaft. This nut is held by retaining screws
that prevent the nut from backing off.
Hub Retaining Nut
Self-aligning
Spring Unit
Piloted Bores
Roll end bores with pilots provide the best fit and can
prevent the roll end sleeve from rocking and thus prevent
wear and damage to the roll end replaceable keys
or shaped bore. The life of the gear spindles can be
increased by including pilot bushings.
Bore
Pilots
Replaceable
Flat Keys
Pilot Bushings
208