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Description
Series 30 Ball Bearing Block - Single - Loop Top
Features:
Applications:
Materials:
Specifications:
Sheave Ø: 30mm(1-3/16")
Max. Rope Ø: 8mm(5/16")
M.W.L.: 300kg(660lbs)
B. L.: 750kg(1,650lbs)
Weight: 28g(1.0oz)
Features:
- Low friction 2-stage ball bearing system provides consistent performance over the full working load range
- High static and dynamic load capacity
- Light weight
- Versatile head fittings
- Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction
- Can be fitted with a shackle in either of two planes to allow correct alignment of the block
Applications:
- Primary lead blocks on dinghies and catamarans
- Control lines on larger yachts
Materials:
- U.V. stabilized Acetal sheaves
- Acetal ball bearings
- Impact modified, fiber reinforced and U.V. stabilized Nylon cheeks
- Grade 316 stainless steel load straps and head fittings
Specifications:
Sheave Ø: 30mm(1-3/16")
Max. Rope Ø: 8mm(5/16")
M.W.L.: 300kg(660lbs)
B. L.: 750kg(1,650lbs)
Weight: 28g(1.0oz)
Accessories
No accessories listed for this product.
Specifications
| SKU | RF30101 |
| UPC | 9316800258260 |
| Brand | Ronstan |
| Category | Sailing |
| Country of Origin | INDONESIA |
| Weight | 0.06 |
| Dimensions | 4 x 2 x 1 |
| Status | Active |
| Last Synced | 10/11/2026, 2:04:39 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 30 Ball Bearing Block - Single - Loop Top 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 | $22.02 | $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 | 0.06 | 0.19 | 0.3 | 0.3 | 0.11 |
| Dimensions | 4 x 2 x 1 | 4 x 2 x 2 | 6 x 3 x 1 | 6 x 3 x 2 | 5 x 3 x 1 |
| SKU | RF30101 | 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
$22.02