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Orbit Blocks - Series 40, Ball Bearing (BB)

Orbit Blocks - Series 40, Ball Bearing (BB)

Ronstan’s proven ‘two-stage’ bearing system enhances durability and low friction performance across the full working load range. The Dyneema® link provides a more flexible, lighter weight and lower profile solution than traditional shackles. It is also more compatible with Dyneema®/Spectra® strops, webbing and carbon connection points than steel loop tops or shackles. Can be set at 0 or 90o orientation, provides stress free articulation with no over-rotation and a security clip locks it in place. Suitable for sheet applications on dinghies, sportsboats and small one-design keel boats, vang and backstay applications on boats to 9m (30’), and control lines on larger boats.

Applications:
- Mainsheet and Spinnaker sheets on dinghies, sportsboats and small keel boats to 9m (30ft).
- Halyard, Vang and Backstay applications on boats to 8m (26ft).

Materials:
Sheave: Carbon fiber reinforced, PTFE & silicon impregnated Nylon
Ball Bearings: High compression strength carbon black Acetal
Stage 2 Bearing: Carbon fiber reinforced, PTFE impregnated Nylon
Housing/Cheeks: Toughened, glass fiber reinforced Nylon
Rope Link: UV stabilised, multi-strand impregnated SK75 Dyneema®

Ronstan Series 40 BB Orbit Blocks - Ball Bearing
Part # Description Sheave Diameter Max Rope M.W.L. Breaking Load Weight
in mm in mm lb kg lb kg oz g
RF45101 Single 1-9/16 40 5/16 9 715 325 1,540 700 1.20 33
RF45110 Single w/ Becket and Swivel Head 1-9/16 40 5/16 9 715 325 1,430 650 1.60 44
RF45111 Single w/ Becket 1-9/16 40 5/16 9 715 325 1,540 700 1.30 36
RF45131 Single w/Becket & Cleat 1-9/16 40 5/16 9 715 325 1,540 700 3.50 98
RF45151 Cheek 1-9/16 40 5/16 9 715 325 1,540 700 1.10 32
RF45201 Double 1-9/16 40 5/16 9 1,100 500 2,205 1,000 2.40 67
RF45211 Double w/ Becket 1-9/16 40 5/16 9 1,100 500 2,205 1,000 2.50 72
RF45301 Triple 1-9/16 40 5/16 9 1,430 650 2,975 1,350 3.50 98
RF45311 Triple w/Becket 1-9/16 40 5/16 9 1,430 650 2,975 1,350 3.70 105
RF45501 Fiddle 1-9/16 40 5/16 9 715 325 1,540 700 1.70 47
RF45511 Fiddle w/ Becket 1-9/16 40 5/16 9 715 325 1,540 700 1.70 48
RF45521 Fiddle w/ Cleat 1-9/16 40 5/16 9 715 325 1,540 700 3.80 108
RF45531 Fiddle w/ Adj. Cleat 1-9/16 40 5/16 9 715 325 1,540 700 3.80 109


RF45151 40mm Orbit Block: Cheek Price: $24.61 RF45201 40mm Orbit Block: Double Price: $52.66
RF45110 40mm Orbit Block: Single w/Swivel Head Price: $27.58

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