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Cross
& Morse Timing Belt Drives take
their place in industry as a
highly efficient, job proven
medium for mechanical power
transmission. Because these
drives combine many important
exclusive characteristics, they
present an entirely different
concept in the transmission
of power.
They are highly versatile in
application and speed range.
Timing belt drives are positive
and offer accurate synchronisation
of speed, and often make possible
worthwhile economies in the
design of a machine, because
they require less space, reduce
bearing specification, eliminate
tension devices, yet assure
an unusually high degree of
efficiency. Virtually every
industry has tested and approved
timing belt drives. They have
been adopted as standard equipment
by a wide variety of machine
builders and equipment manufacturers.
Millions of successful drives
in operation without belt replacement
for more than five years bear
testimony to these drives. Cross
& Morse offer three types of
timing belt drive to cover the
full spectrum of industrial
requirements. |
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The
Classical Timing Belt Drives
These are the original tooth
belt drives, introduced for
the transmission of low torque
instrumentation drives more
than forty years ago, and since
developed and adopted for millions
of drive applications. Eight
different pitch configurations
were produced, but later belt
designs have eliminated the
demand for all but three sizes.
Cross & Morse offer complete
drives to1/5" (XL), 3/8" (L),
and 1/2" (H) pitch sizes with
both pilot bored and taper bored
pulleys. Drives to other configurations
can be supplied to order.
The Classical Timing Belt is
the ideal low cost drive for
powers up to 25 KW with a wide
range of both belts and pulleys
available from stock. Double
sided belts and open ended belts
can also be supplied. |
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The
Metric Series HTD Belt Drives
Demands for ever increasing
powers and speeds led to the
introduction of a Metric Series
of HTD (High Torque Drive Belts),
using a parabolic tooth profile
to enable increased tooth contact
between belt and pulley. The
new tooth profile has improved
shear stress resistance, increased
power capacity, and reduced
noise levels. Pirelli introduced
the RPP belt with an indentation
at the top of the teeth, to
allow local elastic deformation
during meshing with pulley,
and easier air discharge to
further reduce noise levels.
Cross and Morse combine RPP
belts with std. Metric pulleys
to provide off-shelf drives
in 4 pitches; 3mm (3M), 5mm
(5M), 8mm (8M), and 14mm (14M).
Further development created
RPP Plus Belts in 9mm (8H) and
14mm (14H) pitch with double
power capacity; and Panther
Belts in 8mm (8P) and 14mm (14P)
pitch with treble capacity;
both still operating on standard
metric pulleys allowing full
interchangeability with existing
drives. Drives up to 800 KW
can now be transmitted. |
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Polyurethane
Timing Belts
These belts use steel tension
cord encased in a polyurethane
jacket with integral teeth.
The method of manufacture ensures
tight control of pitch length
for applications where accurate
positioning is required. Polyurethane
is a non-crumbling, non-marking
material with excellent resistance
to mineral oils, greases and
light acidic solutions making
it an ideal material for food
applications, on cigarette pressing
machines and paper transporting
systems.
Polyurethane belt drives are
available in 3 pitch sizes,
2.5mm (T2.5), 5mm (T5 & AT5)
and 10mm (T10 & AT10), with
a selection of pilot bore pulleys.
Double sided belts and long
open end belt lengths are also
available. For reciprocating
drives clamping plates are available
to retain the belts.
A new range of PU belts to operate
on standard HTD pulleys is available
in 5mm, 8mm and 14mm pitch in
open end construction for high
load reciprocating drives. |
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Timing
Belt Drives and Ancillaries
Clamping
Plates, Classical Timing Belts
and Pulleys, Classic
Belts - Standard Range, Classical
T/Belt Pulleys - Pilot Bore
(XL,L,H), - Taper Bore (L,H)
Metric
Timing Belts and Pulleys
- Metric Belts - Standard Range,
Metric Belts - Green Power Open
Ended Belts.
Metric
T/Belt Pulleys - Avante
System (5M,8M,14M) - Pilot Bore
(3M,5M,8M,14M) - Taper Bore
(5M,8M,14M)
Polyurethane
Timing Belts and Pulleys
- Polyurethane Belts - Standard
Range - Open Ended Belts Polyurethane
T/Belt Pulleys - Avante System
(T5, T10) - Pilot Bore (T2.5,
T5, T10 AT5,AT10)
Taper
Bore Bushes
Timing
Bars |
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