Ronstan RF55310 Series 55 Ball Bearing Orbit Block - Triple Becket Swivel
Ronstan RF55310 Series 55 Ball Bearing Orbit Block - Triple Becket Swivel
Deliver to:
Auckland 0626,
NZ
Estimated:
$0.00
2-hour Click & Collect:
(order before 3pm, in-stock products only)
Our Auckland Shop
Free
Buy now, pay later & Finance Options
Find Local Store
Report incorrect product information
The item you're looking at is currently unavailable or has limited stock, how about this one instead?
Highest working load in its class
Kilogram for kilogram of working load, the Ronstan RF55310 Series 55 Ball Bearing Orbit Block - Triple Becket Swivel is among Ronstan's BB and RT Orbit Blocks that are the world's lightest. The unique orbital design allows the bearing to only be in the active areas of the floating sheave. This minimises the mass of the inactive return race and hub. Weight and bulk are further reduced in the different block configurations. The ball bearing single and becket block has a through-sheave becket arrangement. The result? The lowest weight possible.
Ronstan RF55310 Series 55 Ball Bearing Orbit Block - Triple Becket Swivel Features:
- Multi-sheave blocks have only single intermediate cheeks and an
ultra-light and efficient head arrangement.
- The orbital ball-bearing arrangement gives the largest possible
bearing race diameter. This maximises load performance.
- The proven Ronstan 2-stage bearing system features high
compression grade acetal ball bearings and a secondary full-contact
bearing. This gives minimum friction across the full working load
range
- The floating sheave and bearing system is supported by a
fibre-reinforced load frame. The design was computer modelled to be
stress optimised
- The Dyneema Link is produced from FSE Robline SK75 fibre, which
is 10 times stronger and lighter than steel, and provides the final
connection from the block to the load point
- The flexible Dyneema Link provides controlled rotation and 0
degrees or 90 degrees orientation. It connects directly to the head
of the block rather than to an intermediate head post. This reduces
weight and gives the lowest possible profile while allowing full
articulation
- Beckets have been carefully designed to minimise height. It is
easily fitted and is retained securely by a moulded retainer clip.
The flexible link can be left with one end attached to the block
when fitting - no more lost shackle pins
- The system is compatible with Dyneema Spectra strops, webbing
and carbon connection points - much more so than steel loop tops or
shackles
- Applications:
- Mainsheet systems on dinghies, sportsboats and small keelboats
to 9m (30ft)
- Spinnaker sheets on dinghies, sportsboats and small keel boats
to 9m (30ft)
- Halyard, Vang and Backstay application on boats to 8m
(26ft)
- Control line applications on larger yachts
- Mainsheet systems on dinghies, sportsboats and small keelboats
to 9m (30ft)
Ronstan RF55310 Series 55 Ball Bearing Orbit Block - Triple Becket Swivel Specifications:
- Sheave diameter: 55 mm
- Max. Rope diameter: 10 mm
- M.W.L.: 750 kg
- B. L.: 1500 kg
- Materials:
- Ball Bearings - High compression stregnth carbon black
Acetal
- Stage 2 bearing - Carbon fibre reinforced, PTFE impregnated
Nylon
- Frame/Cheeks - Toughened, glass fibre reinforced Nylon
- Rope/Link - UV stabilised, multi-strand impregnated SK75
Dyneema
- Ball Bearings - High compression stregnth carbon black
Acetal
Some of our product deals are strictly limited - once they're gone, they're gone! Secure yourself this amazing deal while stocks last...by clicking the Add to Order button above.