Per manufacturer- it is not a pulley but a tension set or soemtimes called a taper-lock ring. The assembly has a pattern of bolts- as the bolts are tightened it pulls an inner ring tight around an axle or round shaft; the part is within the driving and steering group; part is within the chain sprocket
No other part numbers with same form, fit, and function found.
A clamping element consisting of a tapered inner and outer ring in closed design for mounting different types of hubs on shafts and axles. Inner and outer ring constitute a pair of rings. These rings are firmly pressed against each other by tightening bolts which are not part of the clamping element, and subsequently moved on the taper thus producing radial forces for fastening the hub on the shaft by friction fit.
Classification: Gauges for measuring length
NSN 5855-00-411-8688
NSN 5855-00-167-7893
NSN 6240-01-576-0884
NSN 5975-00-451-2492
NSN 5905-00-494-1817
NSN 6105-01-106-1825
NSN 6685-01-126-0446
NSN 5945-01-168-8746
NSN 5985-00-905-6609
NSN 6145-01-019-6897
NSN 5910-01-549-8572
NSN 6150-01-461-4489