Special Purpose


Series 30 High Load Exit Box

30mm Nylatron® sheave, suitable for wire or rope, external mount. Use 6 x 5mm (3/16") fasteners.


Product Specifications
Max. Rope diameter (in)5/16
M.W.L. (lb)830
Sheave diameter (in)1 3/16
B.L. (lb)1760
Weight (oz)1.6
Fastener Ø (in)3/16

Product Information

Ronstan manufactures an extensive range of sheave boxes for use with rope and wire. Plain bearing sheaves are ideal for halyards and other applications where high static loads are likely to be encountered.

Technical Information

Specification Details

Specification Details
A (in)1 3/4
B (in)1 1/16
C (in)9/16
D (in)3/16


Ideal for applications where lines (rope or wire) need to be led through decks, bulkheads or spars minimising friction and chafing



Nylatron® sheave.

Grade 316 stainless steel housing.


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