GATES
General Information and Glossary
Dimensions
Gates reserves the right to make changes in design or
dimensions of standard products to improve their quality
or to accommodate improved manufacturing techniques.
All dimensions in this catalog are for reference only.
Weights
All weights are close approximations and may vary slightly from
actual weights.
Transportation Policy
All prices are F.O.B. point of shipment. The “F.O.B. point of
shipment” term means that the title to the goods, as well as
the full responsibility of all aspects of the shipment, passes to
the consignee (customer) at time of shipment, and any tracking
or claims against the carrier for loss or damage become the
responsibility of the consignee.
Aircraft Policy
WARNING! BE SAFE!
Do not use Gates belts, pulleys
or sprockets on aircraft propeller or rotor drive systems or
in-fight accessory drives. Gates products are not designed or
intended for aircraft use.
Ordering Terminology
PBL —
“Private Brand Label” of Gates
standard line belts. Available upon customer
request. PBL products are made-to-order and
may require additional lead times and cost.
Standard/Non-Stock Belt Products —
Products do not require minimum production
quantities but may require production lead time
and items are not returnable. Check
with customer service for details.
Standard/Non-Stock Metal Products —
Products do not require minimum production
quantities but may require production lead time
and items are not returnable. Check
with customer service for details.
Stock Belt Products —
Products in this
catalog are stock unless otherwise noted.
Belt Products Terminology
Aramid Tensile Members —
Available in
several stock lines and on an MTO basis.
Also referred to as Kevlar
or Flexten
.
Arched Top —
Construction feature that
provides superior strength to prevent
distortion of the tensile section.
Banded —
Belts with a fabric cover over
the belt body. Also referred to as wrapped
or covered belts.
Bandless —
Belts with no fabric cover.
Also referred to as cut edge, raw edge
or machined edge.
Bareback —
Belts manufactured without rubber
material being applied to the outside surface of
the banded belt. Also known as
low friction, dry cover or clutching cover.
Belt Body —
The main part of any belt that
generally surrounds, supports and protects
the load-carrying tensile cords.
Belting –
see
Long Length
.
Carbon Tensile Member (U.S. Patent 5,807,194
& 5,112,282) —
Currently
available in Poly Chain
GT
Carbon
™
belts.
Gates provides the only belt on the market
utilizing carbon Fber tensile in a
dynamic application.
Compound —
Mixtures of rubber, plastics
and other materials that are used to form
the body of the belt.
Concave Sides (U.S. Patent 1813698) —
Construction that allows the belt to
make uniform contact with sheave groove,
thus distributing wear uniformly.
Datum Diameter —
A system that deFnes
speciFc sheave and belt dimensions,
previously known as the pitch system
(diameter or length) for classical belts
and sheaves.
Effective Length (E.L.) —
A standard length
measurement that accounts for varying
construction and manufacturing methods
in the industry. The length is determined by
adding the effective circumference to twice the
measured center distance using sheaves and
an applied tension speciFed by the RMA.
Eliminator
Belt —
Gates trade name for a high-
performance, polyurethane, synchronous belt
designed to replace RPP
belts.
Endless —
also known as
truly endless
,
a belt manufactured in a continuous circle,
never utilizing a splice or joint.
EPDM —
ethylene propylene diene monomer.
A unique rubber construction that provides
improved performance and heat resistance.
Extended Length
™
—
a descriptor of Poly Chain
GT
Carbon
™
belts that are longer than
the standard catalog lengths. Extended Length
is achieved through a special manufacturing
process. Design support is available from
Product Application for drives needing Gates
Extended Length solutions.
Flex Bonded Cord —
Strong chemical bond
between rubber body and tensile cord. Allows
for absorption of bending stress and long
service life. Avoids premature failure due to
cord separation.
Flex-Weave
Cover (U.S. Patent 2519590)—
Nylon and cotton blended fabric construction
that increases fexibility and reduces cover
stress providing longer cover life and longer
protection of belt core.
Gates Curves —
Belts with this feature
compensate for effects that occur when a
V-belt bends in a sheave. Curved belts feature
concave sides, radius relief and arched tops.
Hi-Power
II Belt —
Gates trade name for
belts commonly referred to as classical, wedge
or conventional.
Idler —
1) A non-powered pulley, sheave,
sprocket or wheel around which a belt travels.
2) A non-powered roll or rolls supporting a belt.
Long Length —
also known as belting, the same
construction as a conventional belt but not in
a continuous circle.
Long Length belting is used
in applications such as rack systems, linear
actuators, automatic commercial door openers,
garage door openers, etc.
Metric Power
™
Belt —
Gates trade name for
molded notch, narrow and classical section
V-belts in metric sizes.
Micro-V
Belt —
Gates trade name for belts
commonly referred to as V-ribbed, multi-rib
and Poly-V.
Molded Notch Belts —
Often referred to as
cogged, notched or cut notch belts. Notches
reduce bending stress.
Multi-Speed™ Belts —
Gates trade name for
products commonly referred to as variable
speed, wide range variable speed, adjustable
speed and variable pitch.
Glossary
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