2020 Ronstan Sailboat Hardware Catalogue - Page 16



SPORTS BLOCKS
14
Series 30 Orbit
RF35100
RF35109HL
RF35100D
RF35202
RF35302
RF35212
RF35312
Ideal for high load applications such as
halyards, cascading vangs, backstays,
outhauls and cunningham systems
RF35101
RF35101D
Block must be
lashed through
central hub. MWL
and BL is dependent on
the strength of the lashing.
RF9004-11
Suits single blocks
as a lashing strop.
BL reduced to
1300kg (2860lb)
RF614
Use with RF9004-09
for attachment option for
RF35109HL. BL reduced
to 1300kg (2860lb)
RF35101 and RF35100 - Ultra-low profile
through-sheave becket.
2-stage ball bearing system.
RF35101 accepts RF1850S shackle in both
orientations to create a conventional loop
top block.
SP versions feature a Nylatron® sheave
suitable for both rope and wire.
RF134
RF134A (countersunk holes)
RF323
Suits RF35100,
RF35100D
RF1850S-2 (2 pack)
Suits RF35101 in either direction
BL reduced to 500kg (1100lb)
RF35109HL features class leading dynamic and
static load ratings for a 30mm block. Refer
www.ronstan.com for lashing instructions.
BB sheaves and balls: High compression strength
acetal.
Mainsheet systems and spinnaker sheets
on dinghies to 5m (16ft).
HHL sheave, bearing race and balls:
Grade 2205 stainless steel.
SP sheaves: Self-lubricating Nylatron®.
Halyard, vang and backstay applications
on boats to 5m (16ft).
Frame/cheeks: Glass fibre reinforced nylon.
Soft link: UV stabilised, multi-strand
SK78 Dyneema®.
Control line applications on larger yachts.
SHEAVE MAX.
DIAM. ROPE
mm
mm
PIN
DIAM.
mm
WEIGHT
g
SHEAVE
DIAM.
in.
MAX.
ROPE
in.
PIN
DIAM.
in.
M.W.L.
lb
B.L.
lb
WEIGHT
oz
300
600
300
600
450
900
450*2 900
550 1100
550*3 1100
32
22
56
57
79
81
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
5/32
-
660
660
990
990*2
1210
1210*3
1320
1320
1980
1980
2430
2430
1.1
0.8
2.0
2.0
2.8
2.9
-
550*4 1650*4
42
1 3/16
5/16
-
1210*4 3630*4
15
4
-
300
300
31
21
1 3/16
1 3/16
5/16
5/16
5/32
-
PRODUCT No.
DESCRIPTION
Ball Bearing
RF35100
RF35101
RF35202
RF35212
RF35302
RF35312
Single block, becket hub, swivel shackle head
Single block, becket hub, lashing head
Double block, non-swivel shackle head
Double block, becket*1, non-swivel shackle head
Triple block, non-swivel shackle head
Triple block, becket*1, non-swivel shackle head
30
30
30
30
30
30
8
8
8
8
8
8
4
-
High Grade Stainless Steel Sheave
RF35109HL
Single block HHL, lashing hub and becket option
30
8
Special Purpose - Nylatron® Sheave
RF35100D
Single block, becket hub, swivel shackle head
RF35101D
Single block, becket hub, lashing head
30
30
8
8
M.W.L.
kg
*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 4:1 system at rated block load.
*3 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.
*4 Both the MWL and BL are dependent on the strength of the line used to lash the block through the central hub.
B.L.
kg
600
600
660
660
1320
1320
1.1
0.7

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