2022 Ronstan Marine Catalogue - Flipbook - Page 33
SPORTS BLOCKS
Series 55 Orbit
RF55101
RF55111
31
RF55171
2 x 6mm (1/4”)
RF55151
RF55201
RF55301
3 x 5mm (3/16”)
Integrated becket
Single inner cheeks on doubles and triples for
reduced weight and bulk.
RF55111 - Ultra-low profile integrated becket.
RF55151 - Recessed underside suits flat or
curved mounting surface.
PRODUCT No.
DESCRIPTION
Ball Bearing
RF55101
Single block, Dyneema® link head
RF55111
Single block, becket, Dyneema® link head
RF55151
Cheek block
RF55171
Upright lead block
RF55201
Double block, Dyneema® link head
RF55301
Triple block, Dyneema® link head
Mainsheet systems and spinnaker sheets
on dinghies, sportsboats and small keelboats
to 9m (30ft).
Low profile head
Control line applications on larger yachts.
Halyard, vang and backstay applications
on boats to 8m (26ft).
SHEAVE
DIAM.
mm
55
55
55
55
55
55
MAX.
ROPE PIN DIAM. M.W.L.
mm
mm
kg
10
10
10
10
10
10
-
500
500*
500
500
800
1000
B.L.
kg
WEIGHT
g
SHEAVE
DIAM.
in.
1000
1000
1000
1000
1600
2000
68
75
70
91
134
205
2 5/32
2 5/32
2 5/32
2 5/32
2 5/32
2 5/32
* Total block load. Load on becket not to exceed 50% of block load. i.e. MWL 250kg (550lb), BL 500kg (1100lb). Suitable for 2:1 system at rated block load.
MAX.
ROPE PIN DIAM. M.W.L.
in.
in.
lb
3/8
3/8
3/8
3/8
3/8
3/8
-
1100
1100*
1100
1100
1765
2200
B.L.
lb
WEIGHT
oz
2200
2200
2200
2200
3520
4410
2.4
2.6
2.5
3.2
4.7
7.2