The Ronstan Series 30 Utility Block, Swivel Shackle and Becket is strong and virtually maintenance free.
Features
UV stabilized Acetal sheaves running with stainless steel cheeks
High static and dynamic load capacity
Lightweight and durable
Hollow rivets accept fixing screws, shackles or can be used as a becket for extra purchase
Specifications
Maximum rope diameter: 3/8 in.
Maximum working load: 550 lbs.
Sheave diameter: 1-1/8 in.
Breaking load: 1100 lbs.
Weight: 1.9 oz.
Pin diameter: 3/16 in.
The Ronstan Series 30 Utility Block, Triple, Loop Top is ideal for control lines and vangs, Cunninghams and trapeze retriever systems on dinghys, sailing canoes, and other small boats, and leech line tackles, bunk adjusters, and other dependable uses on larger boats and yachts. It has a triple sheave block with a loop head.
Features
UV stabilized Acetal sheaves running with stainless steel cheeks
High static and dynamic load capacity
Lightweight and durable
Specifications
Maximum rope diameter: 5/16 in. (7mm)
Maximum working load: 1210 lbs.
Sheave diameter: 1-1/8 in.
Breaking load: 2420 lbs.
Weight: 2.1 oz.
The Ronstan Series 30 Ball Bearing Single Block with Swivel Shackle has a low friction 2-stage ball bearing system that provides consistent performance over the full working load range.
Features
UV stabilized Acetal sheaves running with stainless steel cheeks
High static and dynamic load capacity
Lightweight and durable
Specifications
Maximum rope diameter: 5/16 in. (7mm)
Maximum working load: 660 lbs.
Sheave diameter: 1-3/16 in.
Breaking load: 1650 lbs.
Weight: 1.2 oz.
Pin diameter: 5/32 in.
The Ronstan Series 30 Ball Bearing Block, Loop Top has a low friction 2-stage ball bearing system that provides consistent performance over the full working load range.
Features
Can be fitted with a shackle in either of two planes to allow correct alignment of the block
UV stabilized Acetal sheaves running with stainless steel cheeks
High static and dynamic load capacity
Lightweight and durable
Specifications
Maximum rope diameter: 5/16 in. (7mm)
Maximum working load: 660 lbs.
Sheave diameter: 1-3/16 in.
Breaking load: 1650 lbs.
Weight: 1 oz.
The Ronstan Series 30 Single Utility Block is ideal for control lines and vangs, Cunninghams and traveller controls on dinghys, sailing canoes, and other small boats.
Features
UV stabilized Acetal sheaves running with stainless steel cheeks
High static and dynamic load capacity
Lightweight and durable
Hollow rivets accept fixing screws, shackles or can be used as a becket for extra purchase
Specifications
Maximum rope diameter: 5/16 in. (7mm)
Maximum working load: 660 lbs.
Sheave diameter: 1-1/8 in.
Breaking load: 1980 lbs.
Weight: 0.7 oz.
The Ronstan Series 30 Single Utility Block is ideal for control lines and vangs, Cunninghams and traveller controls on dinghys, sailing canoes, and other small boats.
Features
UV stabilized Acetal sheaves running with stainless steel cheeks
High static and dynamic load capacity
Lightweight and durable
Hollow rivets accept fixing screws, shackles or can be used as a becket for extra purchase
Specifications
Maximum rope diameter: 5/16 in. (7mm)
Maximum working load: 660 lbs.
Sheave diameter: 1-1/8 in.
Breaking load: 1980 lbs.
Weight: 0.7 oz.
Lightweight durable, maintenance free and economical utility blocks from Ronstan® use stainless steel cheeks and rivets with Acetal sheaves for a long service life. Series 30 uses 30mm diameter sheaves and is designed for a maximum of 5/16 inch or 8mm line.
