A shaft seal’s ability to function effectively is the end result of not only good design, but also meticulous manufacturing. Proper mold making, case stamping, and rubber mixing are necessary prerequisites to molding a shaft seal. The molding itself must be carefully monitored to ensure quality and consistency. After molding, a typical seal must still undergo trimming, spring insertion, and finishing before it’s ready for shipment and use.

Figure 148 is a schematic illustration of the ways in which these individual manufacturing processes come together to produce a high quality shaft seal. Numbers in parentheses refer to specific steps along the way.

PREPARATION
MOLDING
FINISHING

“A shaft seal’s ability to function effectively is the end result of not only good design, but also meticulous manufacturing.”

Figure 148