Companion pulleys contain integral spokes which run radially on the pulley. A pulley is a wheel on an axle or shaft that is designed to support movement and change of direction of a taut cable. All dimensions in mm for standard sizes of taper bore bushes available refer to page 10 taper bore pulleys for spb v belts pulley types pulley types referred to in the tables are as drawings shown below. Due to the flexibility of the polyv belt, flat drive pulleys can also be. The poly v has been designed with a larger contact surface area than v belts or. V belt is designed to ride inside the groove of the pulley or sheave. All dimensions in mm for standard sizes of taper bore bushes available refer to page 10 taper bore pulleys for spb v belts pulley types pulley types referred to in the tables are as drawings shown. Spzz3v spaa spbb5v c features our pulleys can be used for application with a speed up to 35 ms. Generally, the frontside offset is the longer of these dimensions. Searching for standard v belt pulley v belt pulleys. V belt pulley pitch dia 2,3,415 grooves industrial belts section a,b,c,d,spa,spb,spc pilot or finished bore taper bush. V belt pulley technical specification bore bush pitch. The belts are generally endless, and their general crosssection shape is trapezoidal or v shaped. V belt pulleys provide maximum friction and torque in compatible v.
V belt pulley technical specification taper lock hic manufactured universal brand. The heavyduty steel is designed to be more durable. The rope or v belt does not rest on the bottom of the groove but wedges itself into the groove. Nominal dimensions of v belt cross sections in mm classical v belts 01 cross section w h. This part is powder coated for longterm rust prevention. A pulley is also called a sheave or drum and may have a groove between the two flanges around its circumference. Also known as stepcone pulleys, these have multiple groove sizes so you can quickly change rotation speed by moving your belt to a different groove. Belt application designing program can be downloaded at. Technical manual v belt drives this technical manual contains all important technical information and methods for the design and calculation of drives with optibelt v belts and v grooved pulleys for. Pulley grooved with flange 6 groove wide 64mm 26mm 14. Measuring a v belt pulley is simple, however, when it comes to properly identify a v belt pulley.
This is the distance from the centre of one groove to the centre of the next groove. 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 v belt pulleys is essenial to provide long life of the belts. This v groove drive pulley is for use as a general purpose pulley for power transmission such as compressors, industrial fans, lawnmowers, snowblowers and electrical motors. A belt and pulley system is characterised by two or more pulleys in common to a belt. A v belt or rope meshing in a v shaped groove of the pulley increases greatly the frictional resistance to slipping, for a given maximum belt tension, as compared to flat belt. On a v groove drive, for instance, the centerline or middle of a pulley would be the lowest point of the v, and you would measure from there to the edge of the hub. The v belt wedges into the groove as the load increases, the. Belt drives pulleys and v ribbed belts for industrial applications dimensions.
Belt drives grooved pulleys for joined narrow v belts groove sections 9j, 15j, 20j, and 25j effective system 95. The variety of belt sizes available allows the application of megadyne. This technical catalogue features a technical knowhow about pulleys, bush and. The most notable difference between a v belt pulley and other types of pulleys round belt, flat, etc. Download now white paper creating highquality automotive embedded software as the number of automaker recalls due to software issues are increasing and gaining widespread attention, we are striving to enable the automotive industry with the bestinclass software and guidelines to control and improve the architecture and technical quality of. The pulley should be positioned as close as possible to the large pulley. Dimensions of v belts and pulleys together with basic design data are covered in this manual. Wire rope idler flat belt pulley duplex sheave and flat belt polyv sheave crown face pulley idler sheave all martin sheaves and timing pulleys can be manufactured to meet your special requirements. The crosssection of a v belt is trapezoidal as shown in fig. How to measure vbelt pulleys identifying vbelt pulleys. V belt pulleys are for use with v belts to transfer motion from motors to belts, fans, and pumps. The v shape of the belt tracks in a groove on a pulley or sheave. In tha drawing are shown the main characteristics and dimensions of groove pulleys for vjbelts.
It has a hub attached and the inside diameter is 1 in. Asection pulley fixed bore 1 groove rainbow precision products. V belt pulleys are solely used for transmitting power between two parallel axels. We use good quality raw material in manufacturing our. Optikrik manual tension testers are the time proven. Mining nertia wheels, deep groove sheaves, and up to 98 available upon request. Also additional sizes against special requirements and special material grade can be provided. Finer power transmissions carry a range of taper lock v belt pulleys in. A pulley may also be called a sheave or drum and may have a groove or grooves between two flanges around its circumference.
All idlers should be located on the slack side of the drive. V belt pulley technical specification bore bush pitch grooves. This produces a high strengthtoweight ratio advantageous to fractional horsepower pulleys. It transmits the torque by contact of the belt rib flanks and the pulley grooves. Standard pulleys are pulleys that have traditional dimensions, with one or multiple grooves, which mate with classic, smallengine, and hexagonalstyle v belts image credit. Idler pulleys if idler pulleys are used it is recommended that they be as large a diameter as practical. However, the datum width is equal to the pitch width only when the pitch zone on the v belt is located at the level of the datum width of the pulley groove. Wire rope idler flat belt pulley duplex sheave and flat belt poly v sheave crown face pulley idler sheave all martin sheaves and timing pulleys can be manufactured to meet.
V belt dimensions v belt specifications v belt information. The following table defiens industry standard v belt sheave grooves. Pulleys v grooved pulleys for endless v belts sections z, a, b, c, d and e and endless wedge belts sections spz, spa, spb and spc by bureau of indian standards. Identifying a polyv pulley to identify a polyv pulley the following information must be known.
Misumi offers free cad download, short lead times, competitive pricing, and no minimum order quantity. Md14 belt and chain drives university of northern iowa. The drive element of a pulley system can be a rope, cable, belt, or chain. This manual does not apply to automotive and agricultural drives. One of the evergrowing and most widely used product types n the power transmission and the automotive industry is the v belt pulley, also known as a sheave. Air handling complete line of adjustable sheaves in stock. They are made in many configurations such as tension idlers and variable speedratio pulleys. Increase efficiency, vary speed, and extend the life of your drive by changing the pitch on these pulleys. V belts provide the best combination of traction, speed transfer, drive load distribution, and long service life. Nominal dimensions of vbelt cross sections in mm classical vbelts 01 cross section w h. These belts are used in several applications such as automobiles, wood working machines, etc. Vbelt pulley roller chain, sprockets, pulleys, belts. They have v shaped grooves that correspond with v shaped belts to prevent slippage and misalignment. Dimension of grooves of vpulleys suitable for banded belts rma.
In the following ratio, rs is the speed ratio, d1 the diameter of the driver pulley, d2 the diameter of the driven pulley. Classical hic wrapped conventional v belt pulley sheaves like classic a section v belt dimensions, classic b section v belt dimensions, classic c section belt dimensions, imperial d section v belts dimension, classic imperial e section vee belt sizes, conventional z section size v groove pulley manufactured up to 600 inch inside length for use. V belt pulleys or sheaves mate with drive belts in numerous power transmission applications. Follow us or download our app facebook wikipedia linkedin youtube. Identifying a poly v pulley to identify a poly v pulley the following information must be known. Universal v belt pulleys ensures more mileage form v belt drives, in a way, pulley is made from superior quality. Martin, service and quality drive components you can depend on to get the job done. Naismith engineering stock the pitch sizes of jand. Naismith engineering carries small diameter pulleys in pilot bore and the larger diameters in taper bore. Nominal dimensions of the four cross sections are given in table 1.
Dimensions of vbelts and pulleys together with basic design data are covered in this manual. Special pulleys according to drawing, description or sample on request. Standard vbelt pulley vbelt pulleys grainger industrial. Nominal dimensions of v belt cross sections in mm classical v. Customised sizes and special bush type pulleys are also available on request. Find v belt pulleys on globalspec by specifications. Vgroove pulleys suitable for normal application for use with the following belt types. When used on the inside the idler should have the same groove profile as the driver and driven pulleys. It is fabricreinforced on a base and can be made in various heights. V groove pulleys suitable for normal application for use with the following belt types.