Blocks - Single

Ronstan Series 30 Ball Bearing Exit Block, High Load 30mm stainless steel sheave in a single piece sheave box for high load applications Exit and sheave boxes are ideal for applications where lines need to be led through decks, bulkheads or spars...

Ronstan Series 30 Ball Bearing Exit Block 30mm Ball Bearing sheave box. Single piece housing. acetal ball bearings, acetal sheave. Exit and sheave boxes are ideal for applications where lines need to be led through decks, bulkheads or spars minimising...

Ronstan Series 40 Ball Bearing Stand-Up Orbit Block Single sheave stand-up block with saddle & spring included The new Series 40 ball bearing Orbit Blocks™ provide the perfect balance of strength, performance, and reliability. They offer...

Ronstan Series 40 Ball Bearing Orbit Block with Cam Cleat Single sheave swiveling shackle head block with C-Cleat™ The new Series 40 ball bearing Orbit Blocks™ provide the perfect balance of strength, performance, and reliability. They...

Ronstan Series 40 Ball Bearing Orbit Block, High Load Lashing Snatch Block High load lashing block with single stainless steel sheave and rotating cheeks for snatch block functionality. The new Series 40 ball bearing Orbit Blocks™ provide the...

Ronstan Series 40 Ball Bearing Orbit Block, Lashing Snatch Block Lashing block with single sheave and rotating cheeks for snatch block functionality. The new Series 40 ball bearing Orbit Blocks™ provide the perfect balance of strength,...

Ronstan Series 40 Ball Bearing Orbit Block, Single,Swivel Single, Swivel Head, with Acetal Sheave and Ball Bearings The new Series 40 ball bearing Orbit Blocks™ provide the perfect balance of strength, performance, and reliability. They offer...

Ronstan Soft Attachment Snatch Block, 42mm No Soft Shackle High load soft attachment snatch block with no Dyneema® loop provided. The modern snatch block – Ronstan’s SA Snatch Blocks provide the highest load ratings for their...

Ronstan Series 40 High Load Ball Bearing Exit Block, Stainless Steel Sheave 40mm Stainless Steel Sheave, Anodised Aluminium Housing, Requires 2x 6mm (1/4") Fasteners Exit Blocks minimise friction in lines passing through the deck or exiting masts...

Ronstan Series 40 Ball Bearing Exit Block, Narrow 40mm Acetal Sheave, Anodised Aluminium Housing, Requires 2x 6mm (1/4") Fasteners. Reduced width sheave box for lower load applications. Exit Blocks minimise friction in lines passing through the...

Ronstan Series 40 Ball Bearing Exit Block 40mm Acetal Sheave, Anodised Aluminium Housing, Requires 2x 6mm (1/4") Fasteners Exit Blocks minimise friction in lines passing through the deck or exiting masts and booms. The RF45711 exit block...

Ronstsn Series 40 Ball Bearing Loop Top Block, Single Single alloy sheave with removable clevis pin loop top Features Low friction Torlon® ball bearing system. Lightweight. Cheek cut-outs for easy bearing maintenance. Oversize...

Ronstan Series 50 High Load Block, Single Single, universal head Ideal for high load applications. Wear resistant sheave material, in lightweight, self lubricating polymer, is suitable for use with rope or wire. Captive Lock™ universal head can...

Ronstan Upright Lead Block, Wide 19mm Sheave Suitable for rope up to 8mm. The external tabs can be formed to fit the spar profile before fastening Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or...

Ronstan Series 55 Orbit Block, Fiddle with Becket, Cam Cleat, Link Head Fiddle block with becket, adjustable cleat and Dyneema® Link Head Lightweight Kilogram for kilogram of working load, BB and RT Orbit Blocks™ are the world’s...

Ronstan Snatch Block Acetal Sheave 133mm LOA Single, trunnion snap shackle head Trunnion snap shackle provides the same swivel action and offers additional articulation from side to side Spare Parts; RF6161 Replacement Plunger Pin Kit. Temporary...

Ronstan Soft Attachment Snatch Block, 60mm No Soft Shackle High load soft attachment snatch block with no Dyneema® loop provided. The modern snatch block – Ronstan’s SA Snatch Blocks provide the highest load ratings for their sheave...

Ronstan Snatch Block Acetal Sheave 139mm LOA Single, swivel snap shackle head Spare Parts:  RF6160 Replacement Plunger Pin Kit Temporary leads for sheets and reefing on boats up to 12m (40ft). Spare or replacement block for geneal use on larger...

Ronstan 6-1 & 3-1 Two-Speed Mainsheet Bottom Blocks Only Bottom blocks for RF72700 two-speed system   Mainsheets on sportsboats and keelboats to 12m (40')Max. mainsail area, END boom sheeting = 38sq m (409 sq ft). Max. mainsail area, MID...

Ronstan Series 75 Single Industrial Pulley Block with Becket and Cleat Single block with 75mm (3") sheave, becket, cleat with 30° cleating angle, swivel shackle head and black powder coated 316 stainless steel side plates...