Power^-Power-Lock ML Series Boss Movement Amount During Assembly

With Power-Lock ML Series, the boss moves between the state before surface pressure is generated on the shaft and hub bore and the time the nut is tightened and the rated surface pressure is generated.

This boss movement amount is due to deformation of the shaft and hub bore, and varies depending on the boss inner diameter ratio aN.

aN = DN/DD: hub bore inner diameter mm DN: hub bore mm

Hub movement amount (mm)

Model number	aN=3	aN=2	aN=1.5	aN=1.2
PL005X016M	0.13	0.15	0.20	0.34
PL006X016M	0.13	0.16	0.20	0.35
PL007X021M	0.21	0.25	0.33	0.58
PL008X021M	0.22	0.25	0.33	0.58
PL009X021M	0.22	0.26	0.34	0.59
PL010X024M	0.28	0.32	0.43	0.75
PL011X024M	0.28	0.33	0.43	0.76
PL012X024M	0.29	0.34	0.44	0.76
PL014X031M	0.42	0.49	0.65	1.16
PL015X031M	0.43	0.50	0.66	1.16
PL016X031M	0.43	0.50	0.66	1.17
PL017X036M	0.49	0.57	0.76	1.34
PL018X036M	0.50	0.58	0.76	1.34
PL019X036M	0.50	0.58	0.77	1.35
PL020X041M	0.48	0.56	0.75	1.33
PL022X041M	0.49	0.57	0.76	1.34
PL024X041M	0.50	0.59	0.77	1.35
PL025X046M	0.53	0.62	0.83	1.47
PL028X046M	0.55	0.64	0.85	1.49
PL030X050M	0.54	0.63	0.84	1.50
PL032X050M	0.53	0.62	0.83	1.48