
Poly-V is a multi rib belt drive whose special construction allows it to be used with very small pulley diameters, reducing noise and vibrations. It solves many drive problems in a number of applications such as machine tools, wood working machines, fitness machines, compressors, fans etc. SIT pulleys have been designed to guarantee optimal drive performances and life. They are ideal high ratio or high torque drives. With only 1 belt, tensioning is easy and you do not have to worry about matching belts. For further information or help in selecting a drive contact P.T. Parts.
Characteristics:
· Suitable for transmitting power up to approx. 600 kW
· Wide range of section for every drive requirement: J , L & M
· Suitable for small size pulleys diameter (20 mm), achieving very high
· peripheral speed (up to 60 m/s)
· The belt can counter flex and work on the backside
· Wide range of pulleys for taper bush available from stock



710mm. The pulleys are available in standard straight and taper lock bores.
Multi-Wedged Pulleys are made of GG25,GGG45,S45C or other materials requested
by the customers.

coated. They have the features of high precision, steadiness and smooth
transmission. They are suitable for kinds of precise, high speed and heavy loaded
transmission equipments. They can also be used on auto motors.
We can manufacture specially designed Multi-Wedged Pulleys according to
customers' requests.


Poly-V pulleys and belts in this Catalogue on the shelf and if special diameter pulleys are required they
can be made in our factory.
The ribbed belt combines the high flexibility of flat belts with the high performance of V-belts. The Vshaped parallel ribs are made from a wear-resistant rubber compound. The high strength tension cord is
designed for the many applications of ribbed belt. It is embedded in a rubber adhesive mixture and
covers the entire width of the ribbed belt. Fiber reinforced, wear resistant rubber compounds ensure
quiet operation, oil and heat resistance and a long belt life.
Other features of the Poly-V drive systems include being able to transmit up to 600kW with just one
belt. Poly-V belts can be up to 98% efficient. High speed ratios can be achieved, up to 20:1 with off the
shelf sizes and up to 60:1 with special pulleys. Due to the single belt design, uniform tension is put on
the belt across all grooves. Noise levels can also be reduced by changing over to Poly-V drives. Less
maintenance is required on Poly-V drives and you do not have the problem of one belt wearing faster
than the other because there is only one belt.
All of the pulleys that P.T. Parts carry are made in Cast Iron, the smaller pulleys have blank or pilot
bores while the larger ones are machined to suit a taper lock. Poly-V belts should be run on grooved
pulleys for the best transmission of power, however flat pulleys can be used as idlers or even drive
pulleys if required. Due to the flexibility of the Poly-V belt, flat drive pulleys can also be placed on the
back side of the belt to make quite complicated serpentine drives all driven from the one drive shaft. It
should be noted that when using a flat pulley the transmittable torque will be reduced.

The company boasts modern production workshops and advanced equipment. We focus on themachinery manufacturing field and are dedicated to providing high-quality products to our customers.Our main products include pulleys, couplings, synchronous pulleys, gears, racks, sprockets, clampingsleeves, bearing housings, worm gears, and other transmission components, as well as mechanical andelectrical equipment, and mechanical parts and components, These products are widely used in variousindustries, including automobile manufacturing, CNC machine tools, metallurgy, mining machinery,agricultural machinery, power generation, chemical industry, wind power, and petroleum.




Q1: Do you provide samples? ls it free or extra?
A: Yes, we provide samples free of charge, though the cost of freight is notincluded.
Q2: Do you provide OEM order service?
A: Yes, we provide ODM&OEM services to customers around the world, and wecan customize different brands and different sizes of packaging boxesaccording to customers' requirements.
Q3: Do you have own factory?
A: Yes, we specialized in mechanical parts manufacturing for 15 years.
Q4: How long is your delivery time?
A: The standard parts are expected to be shipped in about 10 days, while thenon-standard custom parts are expected to be shipped in about 30 days. Thedelivery times vary depending on the specific product.
Q5: What are your packing conditions?
A: We use standardized export packaging.