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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:
Applications:
Materials:
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)
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)
Accessories
No accessories listed for this product.
Specifications
| SKU | RF40100 |
| UPC | 9316800243891 |
| Brand | Ronstan |
| Category | Sailing |
| Country of Origin | INDONESIA |
| Weight | 0.17 |
| Dimensions | 4 x 3 x 1 |
| Status | Active |
| Last Synced | 10/9/2026, 2:06:48 AM |
Compliance & Shipping
Returnable
Product Literature
No literature or manuals available for this product.
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Frequently Bought Together
Compare Key Features
| Feature |  Ronstan Series 40 Ball Bearing Block - Single - Universal Head CURRENT |  Ronstan Series 30 Ball Bearing Orbit Block - Triple - Becket |  Harken 57mm Carbo Air Block w/Swivel |  Barton Marine Ratchet Block - 55mm |  Harken 40mm Carbo Block 90° Fixed Head |
|---|---|---|---|---|---|
| Price | $33.11 | $57.81 | $53.93 | $111.66 | $41.35 |
| Brand | Ronstan | Ronstan | Harken | Barton Marine | Harken |
| Condition | New | New | New | New | New |
| Availability | In Stock | In Stock | In Stock | In Stock | In Stock |
| Weight | 0.17 | 0.19 | 0.3 | 0.3 | 0.11 |
| Dimensions | 4 x 3 x 1 | 4 x 2 x 2 | 6 x 3 x 1 | 6 x 3 x 2 | 5 x 3 x 1 |
| SKU | RF40100 | RF35312 | 2600 | 90500 | 2659 |
| Country | INDONESIA | INDONESIA | UNITED STATES | — | UNITED STATES |
| View Item | View Item | View Item | View Item | View Item |
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Frequently Asked Questions
Price
$33.11