Busch Ball Bearing, Double Part# 473000283 – vacstellar

Description

This specific part, Busch #473000283, is a “Double” Ball Bearing. This means it has two complete rows of ball bearings inside a single unit. This design is not by accident—it’s for strength. A double-row bearing can handle significantly heavier loads from all directions compared to a standard single-row bearing.

For a hard-working pump like the SV1140C, this extra strength is essential. It ensures the pump can run continuously without the bearing failing under stress.