Synchronous Drive Belts: Power transmission belts have become a valuable element of synchronous
transmission throughout the entire field of drive technology. They enable
purpose-made solutions to be realized effectively and economically.
Thanks to their high flexibility synchronous drive belts
enable low-cost design, even with difficult drive system requirements such as
high transmission ratios, high belt speeds, small pulley diameters and back
tensioning rollers. Benefits: Synchronised drive, Outstanding resistance to fatigue and deformation, as well as
a good resistance to environmental influences, temperature extremes and
ageing, are all factors which give the user high service reliability and freedom
from maintenance.
Brand / Quality: Major Brand - High Quality Belt Width Approx: 12.7mm = 1/2 inch Belt Depth Approx: 3.6mm Belt Length Approx: 1152.53mm = 45.38 inch Number of Teeth: 121 Belt Tensioner
Synchronous drive belts are composed of:
– polychloroprene teeth and backing
– polyamide fabric facing
– glass fibre cords
Polychloroprene teeth and backing
The teeth and belt backing are made of highly loadable polychloroprene-based
elastomer materials, firmly bonded to the tension member and fabric facing.
Polyamide fabric facing
Lasting protection of the teeth is an essential precondition for smooth drive
operation and a long belt life. This is guaranteed by using tough, wear resistant
polyamide fabric with a low coefficient of friction.
Glass fibre cords
Synchronous drives call for maximum length stability and tensile strength of
the belt. These requirements are optimally met by low-stretch glass fibre cords
helically wound over the entire belt width. Lateral mistracking is minimized by
using S/Z cords arranged in pairs.
Properties
Constant angular velocity and uniform speed transmission.
In much the same manner as the teeth on a gear, the teeth of the belt make
positive engagement with the mating tooth spaces on the pulleys.
The positive-grip drive principle ensures synchronous operation and constant
circumferential speed.
Freedom from high tension
The tooth forming principle requires only a very low belt tensioning and so
the load on axles and bearings is kept to a minimum.
High power transmission
High power transmission is guaranteed by the combination of the extra-stiff
teeth and the wear-resistant fabric facing as well as by the tension member's
high resistance to dynamic load.
High speed ratio
Reliable drive function is achieved through positive engagement, even with small
arcs of contact and small pulley diameters.
Minimal space requirements
High dynamic loadability and high power transmission capacity allow the use
of small pulley diameters and short centre distances. This enables designers to
design economical drives which are not only compact but also light in weight.
High belt speed
Low inertia forces and outstanding flex life ensure reliable drive systems up to
belt speeds of 60 m/s.
Quiet operation
The supple belt design with fabric-faced rubber teeth in combination with metal
or plastic pulleys reduces drive noise to a minimum.
Lubrication- and maintenance-free
Synchronous drive belts are maintenance-free.
They need no lubrication or retensioning. Constant belt tension is guaranteed by
the use of high-strength glass fibre cords as the load-bearing element.
High efficiency
The flexible and supple belt design as well as optimum dimensional match
between the belt toothing and pulley tooth spacing allow virtually friction free
drives with an efficiency of 98%.
Synchronous drive belts
have the following standard properties:
They are resistant to
– certain oils
– ozone
temperature range from 100 Degrees Celsius to –20 Degrees Celsius according to application
and are
– unaffected by tropical climates
– insensitive to weathering
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454L050 Major Brand Synchronous Toothed Belt 0.50 inch Wide 45.38 inch Length 121 Teeth
Simply bearings are the UK's largest online retailer of bearings, seals, belts, chains, sprockets, lubricants and other associated power transmission equipment.
Simply Bearings Ltd, Halton House, Greenfold Way, Leigh Greater Manchester WN7 3XJ United kingdom
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