A conventional 4-bearing system has two bearings on the driving shaft and two bearings on the driven shaft. Both angular and offset shaft misalignment will be present to some deg and a full flex coupling is mandatory. The full flex coupling is the standard coupling having two gear ring sets, one set per half coupling.
Kop-Flex® Gear Coupling, Exposed Bolt, Series: H Series, 3-1/2 in Bore, 8-3/8 in OD, 6-1/4 in Overall Length, Full Flex Hub, 5-7/8 in Hub, 3-1/32 in Length Through Bore, 56700 in-lb Continuous/113400 in-lb Peak Torque, 7900 rpm Maximum, 90 hp Power, 5/8 in Dia x 2-3/4 in L Bolt, 6 Bolts, Carbon Steel
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