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A series

A series
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ELASTOMER COUPLINGS Technical Specification A – etaining ring with R locking feature B – rap-around W elastomeric insert C – Hubs (blank or bored) D – nti-corrosion A treatment Spacer Arrangement Shown Product Description Design Features A Series elastomer couplings provide a solution to one of the most persistent and troublesome problems facing maintenance personnel, periodic coupling failure and the downtime and expense that goes with it. If a new insert is needed, a replacement can be installed in minutes without moving either the prime mover or the driven equipment. The A Series is the simplest construction of all our couplings. The overall design is compact and can be supplied as a close coupled or spacer design. • rethane insert is resistant to most chemicals and oils U • tandard insert: -40°C to 80°C / -40°F to 180°F S • igh temperature inserts: up to 150°C / 300°F H • o lubrication or maintenance N • an rotate hubs independently for motor test C • No metal-to-metal contact Close Coupled Arrangement: Two identical hubs made of high strength steel, each with six or eight teeth, depending on size. The split insert, which is made of specially compounded Urethane, fits over the hub teeth. The retaining ring is made of steel, located with two setscrews. The close coupled arrangement requires no nuts or bolts. • arge bore and torque capacity L Spacer Arrangement: A close coupled hub and a spacer hub, one end of the spacer piece has six or eight teeth, depending on size with the other end flanged, and are made of high strength steel. The split insert, which is made of specially compounded Urethane, fits over the hub / spacer teeth. The retaining ring is made of steel, located with two setscrews. Bolts are supplied to assemble spacer to spacer hub. • deally suited for a vast range of applications in a wide I variety of industries • orizontal and vertical operations, in either direction, H using standard inserts and retaining rings • High misalignment capability • ubs can be supplied either finish machined or with H blank bores

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john crane %*, ASERjES ELASTOMER COUPLINGS Technical Specification Close Coupled Dimensions (mm) Coupling Size Coupling Size Technical Data (Metric) Coupling Size Notes: 1 Maximum bore based on standard ISO key dimensions. 2 Maximum bore for shafts extending under the close coupled teeth. 3 Preferred standard Distance Between Shaft Ends (DBSE). 4 Dependant on shaft size - Please refer to Kselect or John Crane. 5 Mass at minimum DBSE with unbored hubs.

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ELASTOMER COUPLINGS Technical Specification Close Coupled Arrangement Spacer Arrangement Selection Procedure (Metric) 1 – Select appropriate load factor from table SF1. 2 – Select appropriate service factor from table SF2. 3 – Calculate coupling rating from: R = kW x 1000 x SF2 N Where: kW = Driver rated Power (kW) N = speed (rpm) 4 – Select a coupling with the same or higher rating. 5 – Confirm that the hub bore capacity is suitable. 6 – onfirm that the peak torque capability is suitable for the C application. 7 – Check speed capability. 8 – Specify DBSE. 9 – Ensure that the ambient...

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john crane %*, ASERjES ELASTOMER COUPLINGS Technical Specification Close Coupled Dimensions (Inches) Coupling Size Spacer Dimensions (Inches) Coupling Size Technical Data (Imperial) Coupling Size Notes: 1 Maximum bores shown are based on AGMA square key dimensions. 2 Maximum bore for shafts extending under the close coupled teeth. 3 Preferred standard DBSE. 4 Dependant on shaft size - Please refer to Kselect or John Crane. 5 Mass at minimum DBSE with unbored hubs.

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john crane ASERjES ELASTOMER COUPLINGS Technical Specification CONVEYORS - Light Duty Uniformly Fed Apron, Bucket, Chain, Flight, Note: If the coupling is subject to more than 25 starts per hour, add 0.75 to SF2

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Easy to Install After hubs (1) and (2) and retaining ring (4) are installed on the shaft, the teeth are aligned parallel to each other, spaced apart according to Table 1 below. Once installed, the hubs never need to be moved again. The Urethane insert (3) can then be installed in the slots formed by the parallel teeth. When the insert is in position, align the pin in the retaining ring with the slot in the insert, slide the retaining ring (4) onto the Urethane insert and tighten the setscrews into the counter-bores in the insert. Centrifugal force will expand the elastic insert to fit...

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ELASTOMER COUPLINGS Technical Specification

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john crane %*, ASERjES ELASTOMER COUPLINGS Technical Specification »» % North America United States of America Tel: 1-847-967-2400 Fax: 1-847-967-3915 Europe United Kingdom Tel: 44-1753-224000 Fax: 44-1753-224224 Latin America Brazil Tel: 55-11-3371-2500 Fax: 55-11-3371-2599 Middle East & Africa United Arab Emirates Tel: 971-481-27800 Fax: 971-488-62830 Asia Pacific Singapore Tel: 65-6518-1800 Fax: 65-6518-1803 If the products featured will be used in a potentially dangerous and/or hazardous process, your John Crane representative should be consulted prior to their selection and use. In the...

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