Technical Marine Supplies Round Thimbles

TMS low friction rings

Manufactured from high-grade aluminium

Hard anodised in red

Select by Internal diameter

£ 8.80 inc VAT

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Low friction rings from Technical Marine Supplies are manufactured from specially engineered high grade aluminium and coated with a distinctive hard red anodising which delivers an extremely smooth, low friction finish

SizeTMSInternal Hole Dia Ø 
TMS Size 0ALRT06mm Centre Hole
TMS Size 1ALRT110.5mm Centre Hole
TMS Size 2ALRT214mm Centre Hole
TMS Size 3ALRT316mm Centre Hole
TMS Size 4ALRT419mm Centre Hole
TMS Size 5ALRT521mm Centre Hole
TMS Size 7ALRT733mm Centre Hole


TMS "Round Thimbles" are designed to replace blocks in applications where the line passing through the centre is not constantly moving i.e. under static load

Round Thimbles add an extra safety dimension because one line is effectively passing through a loop in another line - if the thimble should fail the line is still captive and will not break free.

Applications include:

  • Backstay Cascades
  • Kicker Cascades
  • Jib Clew Control Lines
  • Jib Barber Haulers and Tweakers

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