The Ronstan Series 40 Single All Purpose Block is a great all around solution. A self-lubricating Acetal polymer sheave running on polished stainless steel races performs equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.
Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Becket pin is removeable so line can be spliced prior to fitting and is ingeniously locked into position without the use of a clevis pin, split ring or tools.
Features
Low friction, high performance, fiber reinforced polyamide sheave and cheeks, with precision moulded, UV stabilized Acetal sheaves running on stainless steel balls
Sheave is self-lubricating
High static and dynamic load capacity
Grade 316 stainless steel load strap, head fitting, and bearing race
Slotted pin shackle eliminates fouled lines
Snap fit removable becket pin
Specifications
Maximum rope diameter: 3/8 in. (9mm)
Maximum working load: 880 lbs.
Sheave diameter: 1-9/16 in.
Breaking load: 2200 lbs.
Weight: 2.8 oz.
Pin diameter: 3/16 in.
The Ronstan Series 40 All Purpose Block, Double, is a double sheave all purpose block with swivel shackle head (non-locking). A self-lubricating Acetal polymer sheave running on polished stainless steel races performs equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.
Features
Low friction, high performance, fiber reinforced polyamide sheave and cheeks, with precision moulded, UV stabilized Acetal sheaves running on stainless steel balls
Sheave is self-lubricating
High static and dynamic load capacity
Grade 316 stainless steel load strap, head fitting, and bearing race
Specifications
Maximum rope diameter: 3/8 in. (9mm)
Maximum working load: 1320 lbs.
Sheave diameter: 1-9/16 in.
Breaking load: 2650 lbs.
Weight: 4.8 oz.
Pin diameter: 3/16 in.
The Ronstan Series 40 All Purpose Block, Double with Becket is a double sheave all purpose block with becket and swivel shackle head (non-locking). A self-lubricating Acetal polymer sheave running on polished stainless steel races performs equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.
Becket pin is removable so line can be spliced prior to fitting and is ingeniously locked into position without the use of a clevis pin, split ring or tools.
Features
Low friction, high performance, fiber reinforced polyamide sheave and cheeks, with precision moulded, UV stabilized Acetal sheaves running on stainless steel balls
Sheave is self-lubricating
High static and dynamic load capacity
Grade 316 stainless steel load strap, head fitting, and bearing race
Specifications
Maximum rope diameter: 3/8 in. (9mm)
Maximum working load: 1320 lbs.
Sheave diameter: 1-9/16 in.
Breaking load: 2650 lbs.
Weight: 5 oz.
Pin diameter: 3/16 in.
The Series 40 Series 40 Ball Bearing Orbit Block™ with Cam Cleat has a 2-way headpost that can be fixed at 0 or 90 degrees or swivel freely. The composite C-Cleat™ and fairlead provide powerful, efficient adjustment and secure holding for important lines under load.
PERFORMANCE MEETS RELIABILITY
The new Series 40 ball bearing Orbit Blocks™ provide the perfect balance of strength, performance, and reliability. They offer class-leading dynamic and static load ratings, the highest available in this size of performance blocks. Lightweight and strong toughened glass fibre reinforced nylon cheeks replace stainless steel straps used in traditional utility blocks - the perfect balance of performance and reliability.
As well as traditional single swivel blocks, the range also includes single and double sheave lashing or soft attachment options through to multiple sheave blocks including those with quad and quin sheaves. The range is extremely versatile allowing a multitude of possible systems right up to a 12:1 purchase mainsheet system for off-the-beach performance catamarans.
Series 40 Orbit Blocks™ are fitted with our carbon reinforced C-Cleat™ for secure rope holding with low entry and exit efforts, and fairleads for fast action from any angle. Cleat arms are made from stainless steel and are adjustable for setting to your preferred cleating angle.
Ball Bearing versions incorporate our 2-stage bearing system using ball bearings to minimise friction and a secondary full-contact bearing to maintain low friction across the full working load range.
High Load versions are designed specifically for any application where high dynamic or static loads are expected. They feature a high strength grade 2205 stainless steel sheave & hub together with a triple bearing race to maintain low friction at very high loads.
Applications
Mainsheet systems and spinnaker sheets on dinghies, off-the-beach catamarans and sport boats to 8m (26ft)
Halyard, vang and backstay applications on boats to 8m (26ft)
Control line applications on larger yachts
Specifications
Maximum rope diameter: 3/8 in. (9mm)
Maximum working load: 880 lbs.
Sheave diameter: 1-9/16 in.
Breaking load: 1760 lbs.
Weight: 6.2 oz.
Note: MWL based on maximum allowable line load through cleat of 175kg (385lb), 1:1 purchase. Total block load. Becket MWL = 400kg (880lb), BL 800kg (1760lb)
The Ronstan Series 40 Single All Purpose Block with Loop Top is a great all around solution. A self-lubricating Acetal polymer sheave running on polished stainless steel races performs equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.
Features:
Low friction, high performance, fiber reinforced polyamide sheave and cheeks, with precision moulded, UV stabilized Acetal sheaves running on stainless steel balls
Sheave is self-lubricating
High static and dynamic load capacity
Grade 316 stainless steel load strap, head fitting, and bearing race
Specifications:
Maximum rope diameter: 3/8 in. (9mm)
Maximum working load: 880 lbs.
Sheave diameter: 1-9/16 in.
Breaking load: 2200 lbs.
Weight: 1.9 oz.
The Ronstan Series 40 Single Universal Head Block is a great all around solution. A self-lubricating Acetal polymer sheave running on polished stainless steel races performs equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.
Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required.
Features
Low friction, high performance, fiber reinforced polyamide sheave and cheeks, with precision moulded, UV stabilized Acetal sheaves running on stainless steel balls
Sheave is self-lubricating
High static and dynamic load capacity
Grade 316 stainless steel load strap, head fitting, and bearing race
Slotted pin shackle eliminates fouled lines
Specifications
Maximum rope diameter: 3/8 in. (9mm)
Maximum working load: 880 lbs.
Sheave diameter: 1-9/16 in.
Breaking load: 2200 lbs.
Weight: 2.5 oz.
Single sheave all purpose stand-up block from Series 40. Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required.
Features
Exceptionally high working loads.
Low maintenance, long service life.
Self-lubricating sheave.
Captive Lock™ universal head.
UV stabilized Acetal sheaves
Impact and UV resistant, fiber reinforced polyamide cheeks
Grade 316 stainless steel load strap, head fitting and bearing race
Specifications
Maximum rope diameter: 3/8"
Maximum working load: 880 lbs.
Sheave diameter: 1-9/16"
Breaking load: 1760 lbs.
Weight: 2.5 oz.
Fastener diameter: 3/16" (5mm)
Ronstan's hardware to fit maximum of 10mm or 3/8" lines. This series uses 40mm sheaves and durable, low maintenance materials to handle high loads and high performance. They are strong enough for applications that historically require a larger block and light enough to compete on any racecourse.
