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Blocks and Sheaves

Environmental Monitoring & Research Equipment

(305) 621-2882

[email protected]

Blocks and Sheaves

General Oceanics blocks are designed to make your cable last.

Available sizes: .5M, 1M, 1.5M, 2M (sheave circumference)

  • Increase Wire Rope Endurance Life
  • Reduce Weight
  • Corrosion Resistant

NYLATRON sheaves reduce crown and cable wear. Weight is one seventh (1/7) the weight of equivalent sized sheaves. NYLATRON is a high strength cast nylon containing fine particles of molybdenum disulfide (MoS2), a solid lubricant; the increased lubricity aids in extending cable life.
COUNTERBALANCING keeps the sheave coplanar with the cable regardless of ship roll, pitch, and yaw under trawling/towing operations.
Available configurations: Counterbalanced, fairlead (non-counterbalanced) for reduced overall weight and height. Instrumented blocks are used to provide remote reading of cable payout and rate.

Meets the requirements of “Handbook of Oceanographic Winch,

Wire and Cable Technology” by Alan H. Driscoll.


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BLOCK NYLATRON COUNTERBALANCED,2M

BLOCK NYLATRON COUNTERBALANCED,2M

Part Number: 4043-2

$ 17618.00

Block Nylatron Counterbalanced, 2M

Block Nylatron Counterbalanced, 2M

Part Number: 4043-2WI

$ 22425.00

Block Nylatron Counterbalanced, 2M

Block Nylatron Counterbalanced, 2M

Part Number: 4044-2I

$ 22691.00

Block Nylatron Counterbalanced, 2M Wide

Block Nylatron Counterbalanced, 2M Wide

Part Number: 4044-2WI

$ 26584.00

BLOCK NYLATRON COUNTERBALANCED,2M WIDE

BLOCK NYLATRON COUNTERBALANCED,2M WIDE

Part Number: 4044-2W

$ 25090.00

Block, Fairlead Non-Counterbal., 2M

Block, Fairlead Non-Counterbal., 2M

Part Number: F4043-2

$ 15731.00

Nylatron Counterbalanced Block, 2M

Nylatron Counterbalanced Block, 2M

Part Number: 4044-2

$ 20744.00

Block, Fairlead Non Counterbal., 2M

Block, Fairlead Non Counterbal., 2M

Part Number: F4044-2

$ 18857.00

Block, 2M, Hd, Fairlead, Wide, Instr.

Block, 2M, Hd, Fairlead, Wide, Instr.

WIDE SHEAVE, HEAVY DUTY,FAIRLEAD,17,600 LB SWL,MAX WIRE DIAMETER 16MM (0.63"), Bending Radius 12.53" (31.8cm).
FOR USE WITH MODEL 4050 READOUT.


Part Number: F4044-2WI

$ 26668.00

BLOCK,FAIRLEAD NON-CONBAL 2M WIDE

BLOCK,FAIRLEAD NON-CONBAL 2M WIDE

WIDE SHEAVE, HEAVY DUTY 17,600 LB SWL MAX WIRE DIAMETER 16MM (0.63")
Bending Radius 12.53" (31.8cm).

Part Number: F4044-2W

$ 25089.00

Block, Fairlead Non-Counterbal., 2M Instrumented

Block, Fairlead Non-Counterbal., 2M Instrumented

FAIRLEAD BLOCK WITH NYLATRON SHEAVE FOR LIGHT DUTY RATING OF 6600 LBS. MAXIMUM WIRE DIAMETER .312"
FOR USE WITH MODEL 4050 READOUT.

Part Number: F4043-2I

$ 17547.00

BLOCK,FAIRLEAD NON COUNTERBAL 2M

BLOCK,FAIRLEAD NON COUNTERBAL 2M

2 METER, INSTRUMENTED, NARROW SHEAVE, LOAD RATING 17,600 LBS, MAX WIRE DIA.625 BENDING RADIUS 12.53"
FOR USE WITH MODEL 4050 READOUT

Part Number: F4044-2I

$ 20745.00