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Slip Couplings |
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Overrunning Clutch Coupling OCC Series FEATURES |
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OCC Series clutch couplings are spring wrapped
unidirectional or overrunning clutches designed for coupling two
in-line shafts. They are noted for their high torque transmission
capacity in input and output drums, enveloped by a helical spring.
When the input is rotated in the self-energizing direction, the
spring couples the output to the input with high transmission
torque capability. In the reverse direction, the output decouples,
experiencing only a slight drag. SHAFT ALIGNMENT The nature of the clutch coupling design necessitates the use of an internal bearing. For this reason, conventionally coupling shafts(Fig. 1) must be closely aligned to avoid overstressing the bearings of the clutch and of the coupled shafts. Maximum axial misalignment of .002" T.I.R. is recommended for this type of mounting. Fig. 2 shows a recommended coupling arrangement which utilizes the bearing inside the clutch and minimizes the requirement for precision alignment of shafts. In this arrangement one shaft is fixed between a pair of support bearings. The coupling is set screwed to that shaft. The other shaft is supported by only one external bearing and the bearing inside the clutch itself. Using this method, greater misalignments between the center lines of the two shafts can be tolerated. The following formula will serve as a guide for calculating maximum permissible misalignment. M = .004L (max) Where, L is length in inches (see Fig. 2) M is the misalignment in inches. |
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Please contact our representatives with your questions and needs.
Machine
Components Corporation
70 Newtown Road, Plainview, NY 11803-4382
Phone: (516) 694-7222 • Fax: (516) 694-7252
E-mail