Ball Bearing


Series 40 Ball Bearing Block, Fiddle with Becket

Fiddle block with becket and universal head


Low friction Acetal bearing system.


Cheek cut-outs for easy bearing maintenanceCaptive Lock™ universal head.

Slotted pin shackle eliminates fouled lines.

Snap fit removable becket pin.


Product Specifications
Pin Ø (in)3/16
Max. Rope diameter (in)5/16
M.W.L. (lb)770
Sheave diameter (in)1 9/16 + 15/16
B.L. (lb)2200
Weight (oz)3.4

Product Information

Sheaves running on Acetal ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.

Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Becket pin is removeable so line can be spliced prior to fitting and is ingeniously locked into position without the use of a clevis pin, split ring or tools.

Technical Information


Typically used in direct 4:1 purchase systems such as mainsheets and boom vangs. On larger boats they are used for fine-tune mainsheet tackles, outhauls, cunninghams, checkstays, genoa lead pullers and traveller controls.



  • Acetal ball bearings.
  • UV stabilised Acetal sheave.
  • Grade 316 stainless steel load strap and head fitting.
  • Impact and UV resistant, fibre reinforced Nylon cheeks.


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