EC21x5 Rubber End Cover Plug Seal 21mm OD 5mm Width Nitrile Coated Steel End Cap

EC21x5 Rubber End Cover Plug Seal 21mm OD 5mm Width Nitrile Coated Steel End CapEC21x5 Rubber End Cover Plug Seal 21mm OD x 5mm Width Pack of 1 Steel Core Nitrile Coated Shaft End Cap Seal This pack of 1 EC21x5 rubber end cover plug seal is made to close off housing bores and prevent a shaft from passing through the wall. With a steel body and nitrile rubber outer layer, it helps protect bearings and internal components from dirt, moisture, and grease loss. Pack size: 1 end cover plug seal Model: EC21x5 Outside diameter: 21mm

EC21x5 Rubber End Cover Plug Seal 21mm OD x 5mm Width Pack of 1
✔️ Steel Core Nitrile Coated Shaft End Cap Seal

This pack of 1 EC21x5 rubber end cover plug seal is made to close off housing bores and prevent a shaft from passing through the wall. With a steel body and nitrile rubber outer layer, it helps protect bearings and internal components from dirt, moisture, and grease loss.

✅ Pack size: 1 end cover plug seal
✅ Model: EC21x5
✅ Outside diameter: 21mm
✅ Width: 5mm
✅ Material: steel core with nitrile rubber coating
✅ Seal material: Nitrile Butadiene Rubber
✅ Designed to block shaft openings in housings
✅ Temperature range: -40°F to 248°F
✅ Helps retain lubricant and prevent contamination

Dimensions (mm)

Outer Diameter Width
21 5

💡 How does a nitrile coated steel end cover plug improve housing sealing performance in rotating assemblies?
It works by combining rigidity with flexible sealing contact:

• Steel core maintains dimensional stability under press fit

• Nitrile rubber creates tight interference seal against bore

• Prevents grease leakage from unused shaft openings

• Blocks dust and moisture from entering bearing cavities

If you need a clean way to seal off a housing and protect internal parts, this EC21x5 plug gets it done without hassle.