Yes, those are generally called radial shaft seals or sometimes wheel dust seals, and most bearing supply shops can usually match them if you bring the old one in and measure the ID, OD, and width accurately with calipers. A lot of mower manufacturers never sold them separately because they were considered part of the wheel assembly, which is why they can be frustrating to source individually. Since the Victa and Rover/MTD versions differ slightly in OD and thickness, your best bet may actually be an industrial seal supplier rather than mower parts dealers, because they can often cross-match generic seals that fit the axle and bearings correctly without needing to grind them down.
Radial shaft seals and wheel dust seals are often easier to source through an
tbs industrial bearings and seals supplier than through mower dealers, especially for older Rover, MTD, and Victa models where the original parts were bundled with complete wheel assemblies. If you can measure the axle size, outer diameter, and thickness accurately, most
Railway bearing shops can usually match a generic seal that fits properly without needing to modify or grind it down.
