Ingeniero Mecanico

®

Drive Chains
INSTALLATION OPERATION ANO MAINTENANCE

Of
REX ORIVE CHAINS

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INSTALLATION, OPERATION, AND MAINTENANCE OF REX DRIVE CHAINS

Table Of Contents

Protect Your Investment Types Of Rex Drive Chains Materials & Components Chain-Sprocket Interaction Drive Arrangements Installation Of Drive Chains Chain Slack (Catenary) Chain Take-Ups Chain Elongation

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Drive Chain Maintenance Procedures ..... 10 Maintenance Check Chart . 12
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Protect Your Investment

Chains are easier to install and are able to take more abuse, than any other systems for transmitting power from one shaft to another.

will get extra dividends in added service tife through proper care ofyour chain drives.
It is the purpose of this handbook to help you

Proper installation, lubrication, and maintenance can increase their service tife by several times and save you a lot of headaches in the long runo

The fas ter chains operate, the greater the care that they require to enable you to get the most for your chain dri ve dollar.

get more "carefree mileage" for your drive chaindollar. The degree of care required depends, to a large extent, on the type of installation and the operating conditions. You will profit by carefully observing the lubrication tips and chart. Tests have conclusiveIy pro ved the importance of chain lubrication in all services. When a chain is properIy Iubricated, wear Iife is increased many foId. Even under dusty or abrasive conditions, Iubricationis recommended. OnIy when apptication conditions render lubrication absoluteIy impossibIe shouId a drive chain be operated dry, at a sacrifice in wear life. The following pages of this handbook provide vaIuable data on protecting your chain investment through correet installation, operation, and maintenance ... information which will point out how you can get maximum performance and tife from yourdrive chains.
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The importance of correct installation, operation, and maintenance of chain drives cannot be emphasized too stongly. You ha ve invested money in the purchase of chain drive equipment. Naturally, you expect a return from that equipment in continuous trouble-free operation, and in long, economical performance. While chains are built to absorb a lot of punishment, no chain willgive complete satisfaction unless it is properly installed and operated, given periodic inspection and adjustment, and properly lubricated. You

Types Of Rex Drive Chains
Rex roUer chains are for smooth, efficient, highspeed drives of 5000 f.p.m. and overo They also may be used at slow or medium speeds. They are available in single and multiple widths. Rex double-pitch roUer chains are madewith the same size roUers, bushings, and pins as standard roUer chains, but with link plates twice the pitch. They are for slow to high speed drives up to 3900 f.p.m. Rex fabricated steel chains are the best choice for high torque drives at slow to medium speeds. Rex detachable chains are for slow speeds up to 350 f.p.m. and very lightly loaded drives. Available in maUeable iron and steel. Rex Pintlechains are for slow speeds up to 450 f.p.m. and lightly loaded drives. Rex H-type chains are for slow speeds up to 500 f.p.m. and medium loaded drives. Rex welded steel chains are an economical choice for sorne light duty cycle drives at slow to medium speeds.

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It is important that power drive chains are operated in the proper

direction to assure maximum wear life of bothchain and sprockets.

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5traight sidebar roUer chain can travel in either direction.
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AU other types of drive chains should travel barre! or closed end toward the smaUer sprocket.

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Quality Materials, Components, And Processes Improve Performance, Lengthen Lile
Drive Chain Design
Rex drive chains consist of pins,...