The CFKS 15*4 Gearbox Round End Cover Sealing Cap is a highly specialized static boundary component engineered for compact power transmissions, electric motors, and gear-reduction units. By encapsulating a rigid internal carbon steel skeleton within a durable elastomeric jacket, this EC-style blind plug provides a flawless, interference-fit barrier. It securely seals open casting bores at shaft termination points, preventing internal gear lubricants from weeping while actively excluding environmental dust and abrasive grit from delicate bearing cavities.

• Absolute Static Sealing: The fully rubberized 15mm outer diameter perfectly conforms to minor housing bore imperfections and easily absorbs high-frequency machine vibration.

• Compact 4mm Axial Profile: The ultra-slim 4mm width is explicitly optimized for shallow transmission housings where internal clearance between the plug and the rotating shaft end is strictly limited.

• Corrosion-Proof Exterior: The continuous elastomeric coating completely isolates the internal metal reinforcement, eliminating the risk of galvanic corrosion between the plug and the aluminum or cast-iron housing.

Find your sealing solution with CFKS — contact us for a quote.