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Industrial Belts
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Custom Manufacturing
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-  Cleats
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Transmission Belts
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We, Golden Machinery Store Company, are an authorized distributor of Friction surface transmission belts manufactured from the best quality raw materials. They pass through double quality checks, the first one at the manufacturer's end, and the second one in our Quality Control Laboratory that is equipped with imported Test Machines. Under the supervision of highly qualified and experienced team of Engineers and Technologists, we make sure to meet all the customer's demand.

The transmission belts are fabricated with multiple plies of specially woven fabrics with sufficient tensile strength both in the warp and weft directions. The cotton ducks (fabrics) are completely impregnated with specially formulated rubber compounds to get the best ply-to-ply adhesion and excellent flex life in actual service. The requisite number of plies are built-up together, pre-stretched, and vulcanized in stretched condition by the manufacturers. This process eliminates excessive stretch in service. The edges of belts are sealed with special bonding solution to prevent ingress of moisture and fraying of the edges.

The belts vary in quality in terms of the type of fabrics, number of plies and widths etc. they are designed to meet customer's industrial needs and service requirements. Here are some of the types of transmission belts with their general specifications-


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Transmission Belting: Product Spectrum
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1.Duck type (34) Hard (31) Hard (31) Hard (28) Hard
2.Nominal wt: gm/sq mtr 970 920 910 860
3. Tensile strength (fabric)        
(a) Warp-kg/mm/width 7.00 6.50 6.25 6.25
(b) Weft-kg/mm/width 4.50 3.50 3.50 3.10
4. Tensile Strength of finished belt per ply kg f/25mm        
(a) Warp 175.07 160.00 156.20 156.20
(b) Weft 112.38 90.00 87.66 76.00
5. T/S per ply of finished Belting        
(a)Warp N/mm width 68.70 64.50 63.80 63.80
(b)Weft N/mm width 44.10 34.40 34.40 30.00
6. Ply Adhesion kg f/2.5cm wide strip 6.20 6.20 6.20 8.20
7. Power rating kW/cm/ply at belt-speed of 5 mtr/sec, for pulley dia of 250mm and 180 arc of contact. 0.15 0.12 0.12 0.12


Range of Transmission Beltings

A) Number of plies : 2 to 10
B) Width : 25 mm to 1500 mm (tolerance on width as per IS- 1370)
C) Thickness : As per table 2
D) Tolerance on roll length : + 2.0/ -0.5 per cent.
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Thickness of Oriental Transmission Belting
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PLY Construction Nominal Belt Thickness Tolerance
3PLY 3.9mm ± 0.5mm
4PLY 5.1 mm ± 0.7mm
5PLY 6.4mm ± 0.8mm
6PLY 7.7mm ± 0.9mm
7PLY 9.1mm ± 1.0mm
8PLY 10.4mm ± 1.1mm
10PLY 13.10mm ± 1.3mm


Belts with Other Specifications
As per our customers' requirement regarding the fabrics used for the conveyor belt production (100% synthetic and/or cotton/nylon (mixed yarn)), we can supply transmission belts in any quantity and to any destination.

Pulley Diameters
Load transmission capacity of belt is directly proportional to its speed. Large diameter pulleys with increased surface speed and consequently high load capacity (of the belts), give a greater safety to the outer plies of the belts from the effect of excessive stress and also help to regulate the load throughout the cross section of the belt.

Recommended Minimum Pulley Diameter
For given belt speeds and number of plies of belt in mm.

No of Plies Maximum Belt Speed (meters per Second)
10 15 20 25 30
3 90 100 112 140 180
4 140 160 180 200 250
5 200 225 250 315 355
6 250 315 355 400 450
8 450 500 560 630 710


Width of the Pulleys
Pulley should be wider than the belt width as per following recommendations:

Width of Pulleys
Belt width in mm Pulley width in mm
Upto 125 mm Belt width+13mm
125mm to 250mm Belt width+25mm
250mm to 375mm Belt width+38mm


Pulley Camber
The Pulley should be crowned or cambered to compensate for slight mis-alignment and to ensure that the belt rides centrally. The crowing of pulleys should be as per relevant IS specification.

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