2025 Ronstan Marine Catalogue - Catalog - Page 21
SPORTS BLOCKS
Series 40 Orbit
19
RF48200
RF48300
RF48400
RF48500
RF48510 & RF35101,
RF9003-07
RF48210
RF48310
RF48410
RF48510
RF46530 & RF35101,
RF9003-07
C
B
A
D
RF261
suits RF48310,
RF48510
RF262
suits RF48410
RF113
suits RF48310, RF48410,
RF48510
2-stage ball bearing system.
Headposts freely swivel or can be locked in 0° or 90°.
Removable becket pins allow lines to be spliced prior
to fitting and are secured using a split ring.
RF614
suits RF48210
RF150
4.8mm (3/16”) pin,
suits multiples
12:1 MAINSHEET
SYSTEM
Mainsheet systems and spinnaker sheets on dinghies,
off-the-beach catamarans and sportsboats to 8m
(26ft).
Halyard, vang and backstay applications on boats to
8m (26ft).
BB Sheave and balls: High compression strength
acetal.
Frame/cheeks: Toughened, glass fibre reinforced
nylon.
Head fittings and hubs: Grade 316 stainless steel.
Control line applications on larger yachts.
PRODUCT No.
DESCRIPTION
Ball Bearing
RF48200
RF48210
RF48300
RF48310
RF48400
RF48410
RF48500
RF48510
Double block, swivel shackle head
Double block, becket, swivel shackle head
Triple block, swivel shackle head
Triple block, becket, swivel shackle head
Quad block, swivel shackle head
Quad block, becket, swivel shackle head
Quin block, swivel shackle head
Quin block, becket, swivel shackle head
*1 Total block load. Becket MWL 400kg (880lb), BL 800kg (1760lb).
© Seascape / Ana Šutej
SHEAVE MAX.
DIAM. ROPE
mm
mm
40
40
40
40
40
40
40
40
10
10
10
10
10
10
10
10
PIN
DIAM.
mm
M.W.L.
kg
B.L.
kg
WEIGHT
g
SHEAVE
DIAM.
in.
MAX.
ROPE
in.
5
5
5
5
5
5
5
5
600
600*1
600
600*1
600
600*1
600
600*1
1200
1200
1200
1200
1200
1200
1200
1200
118
130
167
172
192
200
241
246
1 9/16
1 9/16
1 9/16
1 9/16
1 9/16
1 9/16
1 9/16
1 9/16
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
PIN
DIAM. M.W.L.
in.
lb
3/16
3/16
3/16
3/16
3/16
3/16
3/16
3/16
1320
1320*2
1320
1320*1
1320
1320*1
1320
1320*1
B.L.
lb
2650
2650
2650
2650
2650
2650
2650
2650
WEIGHT
oz
4.2
4.6
5.9
6.1
6.8
7.1
8.5
8.7
