25-100 25-200 25-400 25-408 25-600 25-700 25-800 50-100 50-200 50-300 50-400 50-600 50-602 50-608 50-610 50-630 50-700 50-800   Series 25 Series 50 Hold Down Fingerplates Wearstrips     General Examples Sprockets Belt Support Thermal Expansion Service Factor Which plastic? Material Description Chemical resistance Installation Malfunctions     S-100-R S-100-C S-250 S-251 J-350 Turning Shoe Collapse factor Dimensions Standard Width Sprockets Spare Parts Installation S-Curve Calculation     Photo Gallery Main What's New Site Index Contact Us About Us Conversion Information Copyright and Disclaimer

Although our belts are easy to install and maintain, there are some points which should be observed.     Sprockets   1. Sprockets can be supplied for two types of shafts   a) Square Shaft     - Ensure that the sprockets are aligned so that the gear teeth are   not displaced.     - In the case of sprockets with lateral control, the middle sprocket   should be fixed and the others allowed to move freely.     - For sprockets without lateral control, spacers can be mounted   between the sprockets to prevent them from moving sideways.     - For sprockets with 40 x 40 mm square shafts, an acetal plastic   (POM) retainer ring is also supplied with a 6 mm stainless center screw which should be screwed down into the shaft. The groove for the screw should be made with a drill, file or right-angle grinder (depth 1 - 2 mm).     b) Round Shaft with keyway (ISO Standard)     - Ensure that the sprockets are aligned such that the gear teeth are   not displaced.     - In the case of sprockets with lateral control, the middle sprocket   should fixed and the others allowed to move freely.     - For sprockets without lateral control, spacers can be mounted   between the sprockets to prevent them from moving sideways     - Retainer rings are not supplied for sprockets with a round shaft.   The sprocket can be fixed in position by making a threaded hole   in the hub above the keyway.     2. The sprockets are normally supplied as standard in acetal plastic (POM), but are also available in Nylon (PA6), Polypropylene (PP) in cases where aggressive substances are used. (When in doubt please contact P.B.A Industrial Supplies Ltd.)     3. Wherever possible, the drive wheel should be located between the supports.     4. The number of drive wheels and supports can be seen from the table.     5. For correct dimensions and specifications, refer to the drawings and tables for the respective belt types.     6. Clean the sprockets regularly, as the accumulation of dirt on the sprockets can result in poor, or a complete lack of, engagement the belt.           See next page for belt installation and maintenance                   This page is best viewed at a resolution of    with     Copyright © 2000 by P.B.A. Industrial Supplies Ltd and Scanbelt A/S