Description
Series 40 Ball Bearing Block – Single – Universal Head
Sheaves running on Acetal or Torlon® 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.
Features:
- Low friction Acetal or Torlon® bearing system
- Lightweight
- Cheek cut-outs for easy bearing maintenance
- Captive Lock universal head
- Slotted pin shackle eliminates fouled lines
Applications:
- Mainsheet
- Halyard
- Vang
- Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26′)
Materials:
- U.V. Stabilized Acetal sheaves
- Acetal ball bearings
- Impact and U.V. resistant, fiber reinforced Nylon cheeks
- Grade 316 stainless steel load strap and head fitting
Specifications:
Sheave Ø: 40mm(1-9/16″)
Max. Rope Ø: 10mm(7/16″)
Pin Ø: 5mm(3/16″)
M.W.L.: 350kg(770lbs)
B. L.: 1,000kg(2,200lbs)
Weight: 70g(2.5oz)
Explore more from our collection.
![Ronstan Series 40 Ball Bearing Block - Single - Universal Head [Rf40100] 1](https://automotivecenter.shop/wp-content/uploads/2026/05/ronstan-series-40-ball-bearing-block-single-universal-head-rf40100-1.webp)
![Barton Marine Size 2 Snatch Block W/Stainless Snap Shackle - 35Mm Sheave [90301] 1](https://automotivecenter.shop/wp-content/uploads/2026/05/barton-marine-size-2-snatch-block-w-stainless-snap-shackle-35mm-sheave-90301-1.webp)
![Barton Size 2 35Mm Plain Bearing Pulley Block Double W/Swivel [N02230] 1](https://automotivecenter.shop/wp-content/uploads/2026/05/barton-size-2-35mm-plain-bearing-pulley-block-double-w-swivel-n02230-1.webp)
![Barton Size 3 45Mm Plain Bearing Pulley Block Single Swivel Becket [N03131] 1](https://automotivecenter.shop/wp-content/uploads/2026/05/barton-size-3-45mm-plain-bearing-pulley-block-single-swivel-becket-n03131-1.webp)
Reviews
There are no reviews yet.