Round protective bellows

PVCcoated fabricKevlar® fabric

Product Overview
The Round Bellow is a flexible telescopic protective cover engineered for cylindrical reciprocating components (ball screws, drive shafts, hydraulic cylinders, linear shafts). It prevents ingress of chips, dust, coolant and oil, preserving transmission accuracy and extending component life. Internal support rings maintain shape for smooth extension and retraction while minimizing motion resistance.

Key Specifications

• Materials: PVC-coated fabric, PU-coated fabric, aramid flame-retardant fabric, silicone-coated fabric, TPU
• Support rings: built-in nylon or reinforced steel
• Forming methods: high-frequency heat sealing, stitching, steel ring fixing, one-piece molding
• Connections: flange or collar; optional zipper
• Travel speed capability: up to 120 m/min
• Operating temperature: dependent on selected fabric

Commercial Information
MOQ: 1 piece. Fully customizable: inner/outer diameter, extension/compression stroke, overall dimensions, fabric, support rings, connection type and accessories.

Product Description
Designed to conform to cylindrical profiles, the Round Bellow provides tight enclosure at both ends to reduce contaminant ingress at interfaces. Selectable fabric options enable oil-resistant, acid/alkali-resistant or high-temperature variants. The internal support structure preserves shape for reliable motion without restricting travel. Lightweight flexibility reduces additional load on transmission components and simplifies installation, replacement and maintenance.

Technical Characteristics

• Product type: Telescopic protective cover for cylindrical reciprocating components
• Customizable parameters: inner/outer diameter, stroke, dimensions, fabric selection
• Typical applications: ball screws, drive shafts, hydraulic cylinders, linear and polishing shafts, CNC machine tools, robots, automated production lines, measuring equipment
• Support options: nylon support ring, reinforced steel support ring
• Forming processes: high-frequency sealing, stitching, steel ring fixing, one-piece molding
• Connection methods: flange connection, collar connection, zipper option