Stepmill Step shaft Hardware Kit Used with Threaded Step Shaft Part Number FP-SM021 Kit Contains: 16- Step Shaft Washers Part Number FP-SM035 16- Step Shaft Bearings Part Number FP-BRG26 16- Step Shaft Nut Part Nunber FP-SM034 NOTE: Does not include plastic spacers Fit’s the following models:  

MODEL	SERIAL NUMBER	OEM PART NUMBER
STEPMILL 5 (SM5)		050-0285
GAUNTLET (SM5)		050-0285
STEPMILL 8G		050-0285
E-SM STAIRMILL	STAR TRAC	050-0285