This is a Cub cadet Spacer Bearing IH-473429-R1 or 941-3031. It fits 

208 44" Mower, 190-208-100
209 44" Mower, 190-209-100
213 38" Mower Mfg. Date H 179 & After, 190-213-100
214 42" Mower Mfg. Date H 179 & After, 190-214-100
2164 Tractor, 13A-264G100
2166 Tractor, 13A-214G100, 13A-254G100
2176 Tractor, 13A-274G100
291 60" Mower, 190-291-100
364 (2001), 53AA1A5L100 (2001)
364, 53AA1A5L100
38", 42" 3 Spindle Mower - Main Frame and Knife Unit -38" and 42" Blade- Part 1 (1963-1968)
38", 42" 3 Spindle Mower - Main Frame and Knife Unit -38" and 42" Blade- Part 2 (1968-1971)
48" 3 Spindle Deck
Cadet 60 Riding Mower-Built 1967-1971, 0340002U
Z42, 53AC305G100