2022 Ronstan Marine Catalogue - Flipbook - Page 27
SPORTS BLOCKS
Series 40 Utility
RF41500
RF41510
RF41520
25
RF41530
RF6170
RF41171
2 x 5mm (3/16”)
RF41151
RF41153
3 x 5mm (3/16”)
3 x 6mm (1/4”)
3 x 5mm (3/16”)
Curved base adapter for cheek block
facilitates mounting on masts or booms.
Quick adjusting cleat arms require no
tools to adjust and fix in desired position.
Fiddle blocks are ideal for fine-tune mainsheet
tackles, cunninghams, boom vangs, backstays and
other control line purchase systems.
Snap shackle adapter suits single and
fiddle blocks.
Captive Lock™ universal head can be fixed at
0° or 90°, or left free to swivel on single blocks.
RF41811
Sheaves: UV stabilised acetal.
Cheeks: Impact modified, fibre
reinforced and UV stabilised nylon.
Mainsheet and halyard applications, vang and
spinnaker control lines on off-the-beach boats and
small keelboats up to 8m (26ft).
Load straps & head fittings:
Grade 316 stainless steel.
PRODUCT No.
DESCRIPTION
SHEAVE
DIAM.
mm
All Purpose
RF41151
RF41171
RF41500
RF41510
RF41520
RF41530
RF41811
Cheek block, stainless steel cheeks
Upright lead block
Fiddle block, universal head
Fiddle block, becket, universal head
Fiddle block, adjustable cleat, universal head
Fiddle block, becket, adjustable cleat, universal head
Cheek block, aluminium cheeks
40
40
40 + 24
40 + 24
40 + 24
40 + 24
40
10
10
8
8
8
8
12
4
5
5
5
5
-
400
400
400
400
400*
400*
400
1000
1000
1000
1000
1000
1000
1000
66
59
91
98
157
164
65
1 9/16
1 9/16
1 9/16 + 15/16
1 9/16 + 15/16
1 9/16 + 15/16
1 9/16 + 15/16
1 9/16
3/8
3/8
5/16
5/16
5/16
5/16
1/2
5/32
3/16
3/16
3/16
3/16
-
880
800
880
880
880*
880*
880
2200
2200
2200
2200
2200
2200
2200
2.3
2.1
3.2
3.5
5.5
5.8
2.3
Accessories
RF6170
RF41153
Snap shackle head adapter
Curved surface adapter for RF41151 cheek block
-
-
5
-
500
-
1000
-
49
9
-
-
3/16
-
1100
-
2200
-
1.7
0.3
* Line load through cleat not to exceed 125kg (275lb).
MAX.
ROPE
mm
PIN
DIAM.
mm
M.W.L.
kg
B.L.
kg
WEIGHT
g
SHEAVE
DIAM.
in.
MAX.
ROPE
in.
PIN
DIAM.
in.
M.W.L.
lb
B.L.
lb
WEIGHT
oz