Blue Line Ball Bearing Swivel A403 3.0 Ton

The Markussens Swivel A403 Blue 3.0 Ton is designed for heavy-duty marine and industrial lifting applications - especially suited to the demanding conditions of Irish waters and offshore use. The steel construction, tapered-roller thrust bearing, and greaseable design deliver dependable rotational ability under load, allowing chained or rigged systems to move freely without twist or undue wear. According to the brand’s spec sheet, the A403 is rated at 3.0 tons WLL at a 5:1 safety factor.

Whether you’re operating on deck, handling trawl gear, or configuring mooring systems in Ireland, where salt spray, temperature swings, and frequent load transitions are the norm, this swivel helps protect rigging components and extends service life. Its “Blue” painted finish anchors it in the brand’s “Steel – Stainless centre – Light blue” line, offering visual identification and marine-ready corrosion resistance.

Features

• 3.0 ton Working Load Limit (WLL) in the A403 model ensures robust capacity for demanding lifts.
• Tapered-roller thrust bearing for smooth rotation under heavy load, reducing wear and strain.
• Greaseable design enables routine lubrication for optimal longevity in marine-exposed environments.
• Steel body with stainless steel centre and light-blue finish, designed to resist corrosion and provide visual durability.
• Manufactured to a 5:1 safety factor, offering peace of mind for Irish marine / offshore rigging.
• Compact footprint (A ≈ 189 mm, B ≈ 65 mm, C ≈ 27 mm) suits installations where space and clearance matter.
• Designed to minimize rigging twist and improve safety and reliability on deck operations.
• Suitable for slip-ring, chain, and wire systems, helping maintain alignment and reducing fatigue on connection points.

Specifications

• Working Load Limit (WLL) 3.0 ton (5:1 safety factor)
• Overall Height: 189 mm
• Width: 65 mm
• Throat / Eye Length: 27 mm
• Weight: 2.70 kg approx