The number following it is the outside length of the belt in tenths of inches. Always maintain proper tension through motor adjustment. Standard vbelt pulley groove details product range. Once correctly tensioned optibelt red power 3 vbelts need no retensioning. Nominal dimensions of the four cross sections are given in table 1. It is fabricreinforced on a base and can be made in various heights. State of the art, high efficiency drive belt engineering. The belts positive grip eliminates the need for high initial tension. The v shape of the belt tracks in a groove on a pulley or sheave. Other useful information on baldormaska vbelt sheaves pertaining to qd bushings, face width. Technical manual vbelt drives this technical manual contains all important technical information and methods for the design and calculation of drives with optibelt vbelts and vgrooved pulleys for industrial applications. This manual does not apply to automotive and agricultural drives. Sc plus vbelts are always superior to a matchedset regardless of the date manufactured. V belts provide the best combination of traction, speed transfer, drive load distribution, and long service life.
The speed ratio would be stable if slippage did not occur. Refer to the enclosed assembly drawing for beltroller layout. Other useful information on baldor maska vbelt sheaves pertaining to qd bushings, face width. This vbelt is oemquality and designed for a this vbelt is oemquality and designed for a long life. V belt technical specification polyester cord neoprene. Belt dimension chart engineered for performance gates rpm belts are specifically engineered for forced induction and highoutput engines. Because of their characteristic shapes, vbelts are versatile belts that come in a wide array of standard types, sizes, speed, and are fairly adaptable to practically all types of drive. The variety of belt sizes available allows the application of megadyne. V belt pulley technical specification taper lock hic manufactured universal brand. V belt cross sections can be identified by their top width and depth dimensions. Nominal dimensions of vbelt cross sections in mm classical vbelts 01 cross section w h. V belt pulley sheave sizes table chart engineers edge. In effect, this v belt configuration combines the function of the flat belt and the v belt.
Belt pitch is the distance in millimetres between two adjacent tooth centres as measured on the pitch line of the belt. The use of stateoftheart 3d computer aided design and finite element analysis. In a belt drive system, a ratio is used to determine the speed relation between two vbelt pulleys. V belts are the most commonly selected belts for power transmission.
The outside of the poly v belt is flat and has several vshaped grooves along the inside. Dimensions shown on the dimensional tables are not binding even if. The most common systems for transmitting power from a drive to a driven shaft are belt, gear, and chain drives. The dayco vbelt delivers more flexibility, and increases airflow around the belt, so it runs cooler and lasts longer than competitors v belts. When a belt is installed with a snug but not overly tight fit, longer belt life, less bearing wear and more quiet. Route the belt around the rollers according to the layout and position the laced ends at a location. The latter is done by installing a belt with a different pitch angle. They cover a multitude of industrial applications and are suitable for industrial drives in washing machines, textile machines, vacuum cleaners, lawn mowers, machine tools, medical equipment and many more. Specifications vbelt pulley every effort has been taken to ensure that the data listed in this catalogue is correct. Gates partview is your online source to find industrial belt technical information, part numbers and specifications, materials, and properties, with access to modeling resources, diagrams, and cad models. Our vbelt is oemquality and designed for long life. This manual covers three vbelt cross sections and pulley groove sizes designated 3v, 5v and 8v. Characteristically, these drives employ the positive engagement of two sets of meshing teeth. Metric designations show pitch length in millimetres.
Hence, they do not slip and there is no relative motion between the two elements in mesh. The number following it is the inside length in inches. Vbelt selection its a veritable cinch machine design. The polyv belt is a thin, multiv belt with longitudinal vshaped ribs that mate perfectly with the corresponding sheave grooves. An example would be a44, 44 long on the inside, 46 outside. Its higher flexible nature is suitable for flatvbelt transmission. Vbelt in a wide range of drive applications, such as. How to read vbelt numbers automotive belts start with either 4l 12. A42 v belt type a v belts timing belts banded belts. It is recommended that the tolerance on dimensions should be taken into account while aligning the. Offering high performance, a long service life, uniform belt geometry. They eliminate reboring and keywaying prob erns since each pulley need not be finished according to different bore and. Our banded vbelt catalog allows you to search by belt sizes, prices and features. Read online vbelt sheave groove dimensions masterdrive, inc.
V belt pulley technical specification bore bush pitch. It can be used in evaporative coolers and other fractional horsepower motor applications. Belt tensioning instructions timing belt htb, standard and metric timing belts should be installed to fit pulleys snugly, neither too tight nor too loose. The intent is to find this proper range for any vbelt drive. Li mm internal length lpjdi v ms peripheral belt speed. Conversely, too much tension puts excess strain on belts, bearings, and shafts, and causes premature wear of these components. Use the same type of belts or pulleys per oem specification. A vbelt is a power transmission drive distinguishable by its trapezoidal, hexagonal, or triangular cross section shape. The following table defiens industry standard vbelt sheave grooves. The tension values are to be calculated on the same basis or to be taken from the table on page 146. All vbelt numbers start with either a 4l or 3l, which indicate 12. All books are in clear copy here, and all files are secure so dont worry about it. An overloaded belt drive is like a oneton truck with a twoton load both are sure to break down.
One or more vbelts may be used on a drive, as required, to transmit the horsepower load. Access gates chart for easytoread images, sizing, specifications, product i. Cast iron vbelt pulleys all vbelt pulleys are compliant with current legislation and are made of cast iron gg 20 with protective phosphate. The first of the vbelts to enter the power transmission scenario. J, l, k and m section available in any number of ribs up to the sleeve width. Dimensions of vbelts and pulleys together with basic design data are covered in this manual. Loosen moveable base bolts or motor base bolts and move sheaves close to facilitate installation of belt. Taper bore pulleys for spz v belts all dimensions in mm for standard sizes of taper bore bushes available refer to page 10 pulley installation correct accurate installation of vbelt pulleys is essenial to provide long life of the belts. Finer power transmissions pl will not accept liability for any damage.
Shafts must be parallel and sheave grooves in alignment to prevent unnecessary belt wear. The tolerance on the dimensions apply to the distance between the center of any two grooves whether adjacent or not 2. Today his family business has grown out of the basement and into a 120,000 square foot facility featuring multiple belt slitters, field vulcanization capabilities and overhead cranes with 20 ton lifting capabilities menu. An automotive vbelt, also referred to as a pulley, can either transfer power from one engine element to another or change the speed and torque of engine components. Classic vbelt numbers start with a letter identifying the cross section, a through e see vbelt dimensions below. The design is best suited for small sheaves and can be operated at high. Featuring a highmodulus, low stretch aramid or polyester tensile cord, nylonfiber reinforced undercord, and dual adhesion gum layers,these belts can. The world of timing belts section 1 introduction timing belts are parts of synchronous drives which represent an important category of drives. The manufacture of pulleys with smoother surfaces and tighter dimensional. The belt has been cut to length and laced at the factory. Vbelt tensioning for the initial installation of optibelt red power 3 vbelts, the same methods are used as for standard optibelt vbelts. Universal v belts ensures nonstop power transmission of electric motors drive with minimal stretch and antistatic oilheat resistant quality, in a way, cords.
One poly v belt has as much traction power as several traditional vbelts working together. If the design has fixed, nonmoveable centers not a recommended design do the following. The highest quality belts still lose nearly 50% of installed tension, while lower quality belts lose. You can also use our browning belt rule that includes a gauge to help easily identify belt type. The general definitions are valid irrespective of the system describing the pulleys. Vbelts drives types, characteristic and industrial. Click on vbelt catogory to purchase high quality low price vbelts now click here for a vbelt tension gauges, sheave gauges and belt rulers included belt angle for all above belts is approximately 40 degrees. This lateral rigidity keeps the belt running in a straight line into the grooves even under violent pulsating or shock loads. Dayco was the first to develop the raw edge sidewall construction vbelt, which facilitated controlled slippage around pulleys. In general, the drives are in the integralhorsepower class as distiguished from light duty of fractional horsepower drives. Download vbelt sheave groove dimensions masterdrive, inc.
V belt pulley technical specification taper lock hic. Standard vbelts sc length tolerances standard on all optibelt single vbelts and wedge belts 47 in length and above. For example, a v belt with a top width of 22 and a depth of 716 is a b belt. Mount one sheave onto the shaft loosely and put the belt on it. These extra heavyduty vbelts are constructed with a treated fabric cover, aramid. Our application technology experts offer you free support service regarding the application of our products and also help. A ratio is a proportional factor between two similar objects of different sizes. How can i identify the correct vbelt type when the belt. The belts are generally endless, and their general crosssection shape is trapezoidal or v shaped.
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