Indexing Clutch Selection Guide
(3) Indexing applications with: LOW SPEED AND LARGE FEED ANGLE (Feed frequency: N = Up to 150 cycles/min.) (Feed angle: 0 = 90° and up; N × 0 = 50,000 max.) Segmented gears and rack & pinions are often used to produce the reciprocal movement to be transmitted to the Cam Clutch. Figure 18 gives an application example of a pouch-making machine. Since the reciprocating movement of the eccentric disk is accelerated through the rack & pinion assembly, the reciprocal action of the Cam Clutch outer race is enlarged to 860°. During production the vinyl sheet feeding length is indexed at a speed of 40 to 60 cycles per minute. In this case, the acceleration of the Cam Clutch increases, a large torque acts repeatedly, and the cam slipping distance at overrunning becomes longer. Hence, a cam is required that has superior engagement and higher anti-abrasive properties. A brake is used in order to improve the precision of the vinyl sheet feeding pitch.
Figure 18: Indexing Cam Clutch used in feed roll application
Typical Series
Advantage
The MI-S Series has been developed exclusively for these applications
MI-S *
Special cam surface hardening treatment improves the abrasion wear
The shape and structure of the cam are specially designed so that it can handle abrupt speed changes (e.g. great acceleration) when engaging
* Contact Tsubaki for more information.
20
Made with FlippingBook Digital Proposal Creator