T2-17 3.3.2.1d    Sleeve Type Coupling (Geargrip) A sleeve type coupling consists of two splined hubs with a mating intermediate member of molded neoprene. Because of its construction features, it is capable of normal operation with angular shaft misalignments up to 2°. Lubrication is not required. All parts are replaceable without disturbing adjacent equipment provided sufficient shaft length is allowed by sliding coupling hubs clear of the sleeve member during disassembly. Select the proper size for your application from Table 5 and follow the selection instructions. Sleeve Type Coupling Selection Procedure a. Determine motor characteristics. b. Determine service conditions. c. Select the coupling model with an equivalent or slightly greater horsepower than the calculated value in b  in     Table 5. d. Turn to Geargrip couplings in the product section and select the specific assembly or individual components     in that model number. Other types of couplings are also available and are fully described along with technical specifications in the SDP/SI catalogs dealing with couplings [4]. References [1] Rivin, E.I., Stiffness and Damping in Mechanical Design, 1999, Marcel Dekker Inc. [2] Baranyi, S.J., "The Analytical Design of Universal Joints", Design News, 1969, Sept. 1 [3] Rivin, E.I., "Design and Application Criteria for Connecting Couplings", 1986, ASME Journal of Mechanisms,      Transmissions, and Automation in Design, vol. 108, pp. 96-105 (this article is fully reprinted in [1]) [4] Stock Drive Products/Sterling Instrument, Catalog D790, Handbook of Inch Drive Components and            Catalog D785, Handbook of Metric Drive Components or their current catalogs. Severe Duty • speeds from 3600 to 5000 rpm • operation runs more than 10 hours per day • frequent starts and stops • heavy, pulsating load • mechanical or electrical clutch Service Conditions Normal Duty • speed not exceeding 3600 rpm • operation less than 10 hours per day • infrequent stops and starts • no heavy, pulsating load • no mechanical or electrical clutch 11 11 11 18 18 21 31 31 18 18 21 31 31 31 31 31 1/12 1/8 1/6 1/4 1/3 1/2 3/4 1 Motor Torque TABLE 5    SLEEVE TYPE COUPLINGS SELECTION DATA Service Speed, rpm H.P. Motor: Normal Torque Normal Duty Severe Duty 3500 11 11 11 11 18 18 21 31 1750 11 11 18 18 21 31 31 31 1160 11 18 18 21 31 31 31 31 870 18 18 21 31 31 31 31 3500 11 11 11 18 18 21 31 31 1750 11 18 18 21 31 31 31 31 1160 18 18 21 31 31 31 870 18 21 21 31 31 31 Motor: High Torque Normal Duty Severe Duty 3500 1750 11 18 18 21 31 31 31 31 1160 18 18 21 31 31 31 870 18 21 21 31 31 31 3500 11 11 18 18 21 31 31 31 1750 1160 18 21 31 31 31 31 870 21 31 31 31 31