Duncan Electronics BEI 'Insta-Mount' incremental rotary optical encoder model MX21-551 -- new old stock item never been used -- -- 54mm across - for 5/16 in. shaft -- --
-- package is opened -- item is unused --
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-- from Binder:
86 051 04E [EM] clutch Clutch by energizing These clutches have the following characteristics: -clutching by energizing -coupling without current -angular clearance almost zero when stopped -couple residual uncoupled zero (in all mounting positions) -allows the clutch with relative speed through a mixed friction lining - self-centering coil using ball bearing. Brakes and clutches second. Disengagement is also almost instantaneous, even under load." --
Each week we post a number of interesting items that have been purchased from Oregon Estate Sales-shipping can be recalculated and combined with multiple purchases-please let me do the calculating for combined shipments before paying.