In a belt drive system, a ratio is used to determine the speed relation between two vbelt pulleys. Belt drives v ribbed belts, joined v belts and v belts including wide section belts and hexagonal belts electrical conductivity of antistatic belts. They are made in many configurations such as tension idlers and variable speedratio pulleys. The value of the included angle is now standardised for v belts, as is also the angle of the groove for pulleys of all diameters. How to measure v belt pulleys identifying v belt pulleys one of the evergrowing and most widely used product types n the power transmission and the automotive industry is the v belt pulley. The following image shows the parameters for a, b, and c section v belts. All fenner pulleys are manufactured from superior qua ity cast iron in over 400 standard sizes. Conversely, too much tension puts excess strain on belts, bearings, and shafts, and causes premature wear of these components. Install a safety cover over rotating components including belt pulley. If you cant find the exact design parameters you are looking for heres a suggestion. About 21% of these are pulleys, 6% are transmission belts. Also additional sizes against special requirements and specia materia grade can be provided. A ratio is a proportional factor between two similar objects of different sizes.
This manual covers three vbelt cross sections and pulley groove sizes designated 3v, 5v and 8v. The v belt wedges into the groove as the load increases, the greater the load the greater the wedging actioncreating power distribution and torque to whatever the v belt is operating. Ab combination groove 275 c section 278 d section 281 fhp sheaves ak2ak boredto size 283. Pulley alignment can be checked by placing a straight edge across the outside edge of the pulleys, and adjusting until contact occurs evenly across both pulleys. V belt pulley technical specification taper lock hic manufactured universal brand universal v belt pulleys ensures more mileage form v belt drives, in a way, pulley is made from superior quality graded cast iron, with grooves property machined with or without dynamic balancing that. V belt pulley technical specification bore bush pitch. It is fabricreinforced on a base and can be made in various heights. V belt pulleys or sheaves mate with drive belts in numerous power transmission applications. Dimensions shown on the dimensional tables are not binding even if they are. V belt pulley sheave sizes table chart engineers edge. Combination groove conventional stock qd sheaves v belt drives combination groove dimensions belt section drawing shows position of a and b belts in groove when used with qd sheaves. 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 shape of the belt tracks in a groove on a pulley or sheave.
Running in normal standard, the pulleys are statically balanced and this is sufficient for peripheral speeds up to 25 ms. Dimensions of vbelts and pulleys together with basic design data are covered in this manual. Circle type bush bore bore width length step step dia. A wide variety of standard v belt pulley sizes options are available to you, such as type, standard or nonstandard, and material. V belt pulley technical specification taper lock hic. Spzz3v spaa spbb5v c features our pulleys can be used for application with a speed up to 35 ms. Dimension of grooves of vpulleys suitable for banded belts rma. Cast iron vbelt pulleys all vbelt pulleys are compliant with current legislation and are made of cast iron gg 20 with protective phosphate. V groove pulleys suitable for normal application for use with the following belt types. Occasionally flatbelt pulleys are suitable when the backside of the v belt is used to rotate the pulley in the opposite direction of the driven pulley, as commonly employed with ribbed v belts. For higher speeds is essential dynamic balancing can be provided on request. Special pulleys according to drawing, description or sample on request. The lengths are in compliance with international standards.
This area is intended to act as the contact surface for the conveyor belt. Wide range of pulleys for taper bush available from stock 500 0. In tha drawing are shown the main characteristics and dimensions of groove pulleys for vjbelts. This manual does not apply to automotive, agricultural drives. Akseries pulleys for v belts ak pulleys are manufactured for aseries v belts, ax v belts, and 4l belts. Face width the length of a pulley s cylindrical body. For standard sizes of taper bore bushes available refer to page 10 pitch pulley taper min. Standard pulleys are pulleys that have traditional dimensions, with one or multiple grooves, which mate with classic, smallengine, and hexagonalstyle. The speed ratio would be stable if slippage did not occur. Metric v belt tl taper bushed sheaves spz, spa, spb and spc sheaves conform to iso 4183 and din 2211. All vbelt pulleys are compliant with current legislation and are made of cast iron. Taper lock bushes weld on hubs sizes 1008 to 5050 upto 125 mm maximum bore size.
Fenner metric pulleys conform to is and iso groove specifications and standard sizes can transmit upto 250 kw of power at 1440 rpm with speed ratios upto 1. Fenner metric pulleys conform to is and iso groove specifications. Power 3 wedge belt is very lowstretch and maintenance. Engineering vbelt sheave groove dimensions masterdrive. Generally, the frontside offset is the longer of these dimensions, while the backside offset is the shorter.
Available sections and sizes are shown in the above table. Martin, service and quality drive components you can depend on to get the job done. V belt pulley technical specification taper lock hic manufactured universal brand. Where a v belt is bent round a pulley of small diameter, its shape, seen in crosssection. The following table defiens industry standard v belt sheave grooves.
Pulley grooved with flange 6 groove wide 70mm 30mm 12mm steel pulley 89154 grooved with flange 6 groove wide 70mm 32mm 10. Finer pulleys under go stringent balancing tests, to ensure each pulley functions efficiently. Desch screwon hubs are made of grey cast iron or steel and are phosphatised to provide additional corrosionproofing. Chain sprockets wheels single double strand with knob 1050 teeths.
Find v belt pulleys on globalspec by specifications. Contiv multirib multiple vribbed belts power parts. How to measure vbelt pulleys identifying vbelt pulleys. All dimensions in mm for standard sizes of taper bore bushes available refer to page 10 pitch pulley taper min. 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 your special requirements. The powergrip gt3 system is an extension of the htd system with greater loadcarrying capacity.
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. Naismith engineering carries small diameter pulleys in pilot bore and the larger diameters in taper bore. Finer power transmissions carry a range of taper lock v belt pulleys in. Follow this trend in dimensioning the pulley groove for your belt and you should be okay. They can be used with both wedge narrow and classical v belts. Customised sizes and special bush type pulleys are also available on request.1116 398 121 830 899 459 519 1322 855 1342 1044 488 1243 1326 1329 1294 249 45 718 437 1075 570 349 849 175 37 729 978 816 150 298 286 647 157