2025 Ronstan Marine Catalogue - Catalog - Page 17
SPORTS BLOCKS
Series 30 Orbit
15
RF35322
RF35151
RF35332
2 x 4mm (5/32”)
RF35000
RF9003-07
Double and triple blocks can be
converted to soft attachment with
RF9003-07
RF35284
RF35286
RF35100A
10mm
(3/8”)
RF35140
RF35141
2 x 4mm (5/32”)
RF35322 & RF35332 - Composite C-Cleat™
and fairlead.
Mainsheet systems and spinnaker
sheets on dinghies to 5m (16ft).
RF35151 - Base suits curved mounting surface.
Halyard, vang and backstay applications
on boats to 5m (16ft).
RF35286 - Stainless steel ring, 35mm (1 3/8”)
OD, 5mm (3/16”) diameter material.
PRODUCT No.
2 x 5mm (3/16”)
Sheaves: High compression strength acetal.
Ball bearings: High compression
strength acetal.
Control line applications on larger yachts.
Frame/cheeks: Toughened,
glass fibre reinforced nylon.
Primary lead blocks on dinghies
and catamarans.
Head fittings & hubs:
Grade 316 stainless steel.
DESCRIPTION
Ball Bearing
RF35000
Sheave, captive BB, 11mm (7/16”) width
Single block, becket hub, slotted head post,
RF35100A
swivel shackle head
RF35140
Stand-up block, swivel head
RF35141
Stand-up block, non-swivel head
RF35151
Cheek block
RF35284
Linked blocks, S30 & S30
RF35286
Clew ring blocks
RF35322
Triple block, cleat, non-swivel shackle head
RF35332
Triple block, becket*1, cleat, non-swivel shackle head
Spare Parts & Conversion Accessories
RF9003-07
Dyneema® link to suit S30 double & triple Orbit Blocks™
SHEAVE MAX.
DIAM. ROPE
mm
mm
PIN
DIAM.
mm
M.W.L.
kg
B.L. WEIGHT
kg
g
SHEAVE
DIAM.
in.
MAX.
ROPE
in.
PIN
DIAM.
in.
M.W.L.
lb
B.L. WEIGHT
lb
oz
30
8
-
300
-
6
1 3/16
5/16
-
660
-
0.2
30
8
4
300
600
31
1 3/16
5/16
5/32
660
1320
1.1
30
30
30
30+30
30
30
30
8
8
8
8
8
8
8
-
300
250
300
300
300
550*3
550*2&3
600
500
600
600
600
1100
1100
33
36
21
46
63
130
132
1 3/16
1 3/16
1 3/16
1 3/16+1 3/16
1 3/16
1 3/16
1 3/16
5/16
5/16
5/16
5/16
5/16
5/16
5/16
-
660
550
660
660
660
1210*3
1210*2&3
1320
1100
1320
1320
1320
2430
2430
1.2
1.3
0.7
1.6
2.2
4.6
4.7
Blocks suited:
Suits RF35202, RF35212, RF35302, RF35312, RF35322, RF35332
*1 Becket suits up to 6mm (1/4”) line. For lines above 6mm (1/4”) use an additional Dyneema® link (sold separately).
*2 Total block load. Load on becket not to exceed 25% of block load. i.e. MWL 140kg (310lb), BL 280kg (610lb). Suitable for 6:1 system at rated block load.
*3 Line load through cleat not to exceed 125kg (280lb).
