Ronstan Series 25 Ball Bearing HHL Lashing Orbit Block delivers high load capacity with minimal weight for dinghy and small boat control systems. Its primary benefit is reliable low-friction performance under heavy loads using a two-stage ball bearing system.

Problem: modern performance rigs and foiling boats use small-diameter lines that still carry large loads. Solution: this HHL Orbit block combines a Grade 2205 stainless steel sheave and bearing race with Grade 304 stainless ball bearings and a hollow stainless hub so you keep efficient line control and secure lashing without added bulk.

• High load capacity: 880 lb M.W.L. and 2650 lb B.L. for demanding applications
• Compact 1 in (25mm) sheave that suits up to 8mm (5/16 in) rope
• Two-stage ball bearing system for smooth low-friction rotation
• Hollow stainless hub with becket take-off and lashing up to 4mm (5/32 in)
• Lightweight frame: toughened glass fibre reinforced nylon at 1.2 oz
• Materials engineered for corrosion resistance: Grade 2205 sheave and race with Grade 304 bearings

Use cases: mainsheet and spinnaker sheet turning blocks, cunninghams, cascading vangs and control lines on dinghies to 4 m (13 ft). Compared to plain acetal-only sheaves, the HHL variant resists deformation and maintains bearing life under repeated peak loads.

Trust signals: specification-backed materials, measurable M.W.L. and B.L., and Ronstan engineering make this block suitable for competitive and performance use. If you want reliable low-friction control with secure lashing options, this HHL Orbit block fits your rigging needs.