i would like to know if i can get replacement rollers for the hinge?

i have a capri gas kitchen stove. my husband took off door to clean oven last week and it seems the roller that the hinge rides on got broke. it appears to be white plastic. i don't see any replacement parts for this. is this a factory piece that can't be replaced? any help would be great. i hope i don't need to gat a whole new stove because of this little roller.