Busch Shaft Seal, Buna – 30 x 40 x 7 mm Part# 487000140 – vacstellar

Description

The Busch Shaft Seal, Part# 487000140, is a  Its job is to keep the pump’s lubricating oil inside and to keep air and dust outside. This seal fits snugly around the spinning shaft of specific Busch SECO pumps, preventing costly leaks that can lead to low oil levels, contamination, and a loss of vacuum power. A worn shaft seal is a common cause of drips and performance drops.

This isn’t a part. It’s the Busch seal, made from high-quality Buna-N rubber (Nitrile). This material is famous for its excellent resistance to oils and greases, making it perfect for this job. Its dimensions are precisely 30 mm (inner diameter) x 40 mm (outer diameter) x 7 mm (thickness). This ensures a perfect fit for a secure, long-lasting seal.