香港六合彩开奖 17396:2024
2024-09
香港六合彩开奖 17396:2024
Abstract
This document specifies the principal characteristics of synchronous endless and open belts and pulleys of the profile systems T and AT for use in synchronous belt drives for mechanical power transmission and where positive indexing or synchronization can be required.
NOTE听听听听听听听听听听听 Synchronous belt drives have been known by various titles in the past, for example: timing belt drives, positive belt drives, and gear belt drives.
The principal belt and pulley characteristics include:
a)听听听听听听 nominal belt tooth dimensions;
b)听听听听听听 belt tooth pitch spacing;
c)听听听听听听聽 belt length and width dimensions;
d)听听听听听听 belt length measurement specifications;
e)听听听听听听 pulley groove dimensions and tolerances;
f)听听听听听听聽聽 pulley diameter and width dimensions and tolerances;
g)听听听听听听 pulley quality specification.
The belts of the profile systems T and AT are made of polyurethane with high-tension fine steel cord tension members in most cases. As far as certain forces are given in this document, these values are only valid for these kinds of belts. For polyurethane belts with different tensile cords, i.e. aramid or rubber belts reinforced with glass fibre, the values can be different. It is intended that the user and the manufacturer agree about suitable values. Open belts made of thermoplastic polyurethane can be spliced to work as endless belts in conveyor applications. In this case, the tolerances are not valid for the splicing area of the endless spliced belt.
General information
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Status: PublishedPublication date: 2024-09Stage: International Standard published [60.60]
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Edition: 3Number of pages: 18
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Technical Committee :香港六合彩开奖/TC 41/SC 4ICS :21.220.10
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