• Ronstan Series 40 Single Ball Bearing Block - Universal Head (RF40100)
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Brand: Ronstan

Ronstan Series 40 Single Ball Bearing Block - Universal Head (RF40100)

Ronstan Series 40 Single Ball Bearing Block - Universal Head (RF40100)

$33.11
$33.11
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The Ronstan Series 40 Single Ball Bearing Block features a 2-stage bearing system for consistent, low-friction performance across a full load range. Designed for durability and ease of use, this block includes a Captive Lock universal head that can be fixed in two planes or left to swivel as needed.

Key Features:

  • Low-friction Acetal ball bearing system
  • Lightweight, fiber-reinforced nylon cheeks with cut-outs for maintenance
  • Captive Lock universal head
  • Slotted pin shackle to prevent fouled lines
  • U.V.-stabilized construction with Grade 316 stainless steel load straps

Technical Specifications:

  • Sheave diameter: 40mm (1-9/16 in.)
  • Maximum rope diameter: 10mm (7/16 in.)
  • Pin diameter: 5mm (3/16 in.)
  • Maximum Working Load (M.W.L.): 350kg (770 lbs)
  • Breaking Load (B.L.): 1,000kg (2,200 lbs)
  • Weight: 70g (2.5 oz)
  • Manufacturer Part Number: RF40100

Recommended Applications: Ideal for mainsheets, halyards, vangs, and spinnaker control lines on catamarans, one-design classes, and sportsboats up to 8 meters (26 ft).

Product facts

CT SKU
CT-103710
Model / MPN
RF40100
UPC / GTIN
9316800243891
Package dimensions
1" X 3" X 4"
Package weight
0.17 lb

Fit-sensitive item: confirm measurements, model numbers, and manufacturer details before ordering. Tug & Tow does not guarantee universal compatibility from a product page alone.

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