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Constellation™ Chain & Wire Accessories

Breaking Strength
The fi gures shown in the tables below indicate the minimum breaking load of Lewmar cables
and chain. Due to the reduction in strength caused by cable fatigue over time, the load on Torque = Breaking Load x Radius
the cable should never exceed 25% of the breaking strain shown, i.e. Safety Factor = 4. x Safety Factor

A 305mm/12" radius quadrant used in conjunction with 6mm/0.23" wire is suitable for the Metric Example
rudder torque, as in the example calculation shown on the right.
= 2040Kg x 0.305m x 0.25
• Precision engineered in non magnetic stainless steel • Cable can be supplied to be finished with eyebolts = 155 mKg
and thimbles
• 2 off master links for easy
connection to the cable • Fully assembled with pre-swaged Imperial Example
eyebolts available
• Custom length chain sets available on request = 4500lb x 12" radius x 0.25
= 13500 in.lb
• Cable supplied in 7 x 19 stainless steel stranded
construction

Non-Magnetic Stainless Steel Roller Chain Assemblies Steering Cable 7 x 19 Stranded Stainless Steel

ANSI BREAKING CABLE BREAKING
PART NO. SPEC PITCH INCHES LOAD PART NO. DIAMETER LOAD
     
 ⁄ .
 ⁄ .

Pre-swaged cables
can be supplied on
Wire and Chain assembly request

Constellation™ Quadrant, Sprocket & Chain Kit Specifi cation Table
The following table illustrates the turns at the helm for a range of standard sprocket and quadrant sizes.

Lewmar offer custom quadrants in 6082T6 alloy up to 020 mm (40")
Lewmar also offers custom sprockets with any number of teeth in 15.87mm (5/8") or 19.05mm(3/4") or
25.4mm(1") pitch stainless steel or 6082T6 high strength aluminium.

PART NO. APPROPRIATE CHAIN KIT QUADRANT TYPE SPROCKET SIZE VS TURNS HO/HO FOR ° RUDDER TRAVEL
⁵/₈" P SPROCKET ³/₄" P SPROCKET ⁵⁄₈"   ⁵⁄₈"   ⁵⁄₈"   ³/₄"  
/ "  ° . . . .
/ . "  ° . . . .
/ "  ° . . . .
/ "  ° . . . .
/ "  ° . . . .
/ "  ° . . . .
/ "  ° . . . .
/ "  ° . . . .
/ "  ° . . . . Conduit
/ "  ° . . . .
/ "  ° . . . . PART NO. DESCRIPTION
/ "  ° . . .  (  )
/ "  ° . . . .   
/ "  ° . . . .

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