Ronstan Series 40 BB Double 2 Axis Shackle Head Block
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
- Slotted pin shackle eliminates fouled lines
- Two way head post
- Low friction, 2-stage ball bearing system
- High static and dynamic load capacity
- Lightweight
- Cheek cut-outs for easy bearing maintenance
Specifications
- Sheave: 40 mm
- Max. Rope: 10 mm
- Max. Cable: - mm
- Pin: 5.0 mm
- M.W.L. 500 kg
- B. L. 1200 kg
- Weight: 134 g
Applications
- Mainsheet
- Halyard
- Vang
- Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)
Materials
- Acetal ball bearings
- UV stabilised Acetal sheave
- Grade 316 stainless steel load strap and head fitting
- Impact and UV resistant, fibre reinforced Nylon cheeks
SHIPPING
All orders are shipped from our Brookvale, Sydney order fulfilment centre. Orders are normally shipped within 5 business days - most quicker!
Shipping day estimates after your order leaves our fulfilment centre in Sydney are based on Australia Post domestic delivery times:
| State | Regular |
Express |
| ACT | 2 - 3 business days | 1 - 2 business days |
| NSW | 2 - 4 business days | 1 - 3 business days |
| NT | 4 - 13 business days | 3 - 5 business days |
| QLD | 3 -12 business days | 2 - 4 business days |
| SA | 3 - 5 business days | 2 - 4 business days |
| TAS | 4 - 8 business days | 2 - 4 business days |
| VIC | 3 - 5 business days | 2 - 3 business days |
| WA | 5 - 10 business days | 2 - 6 business days |
Last updated 12/09/2023
* These delivery times are an estimate and actual delivery times may vary based on peak periods and other external factors. Bulky orders may take longer.
Shipping rates are automatically calculated based on live quotes supplied by our shipping partners. The quote takes into consideration, the bulk of your cart, where you want it delivered and if you want express or standard shipping.
Get a shipping rate estimate by adding items to your online cart. Go to the cart by clicking on the shopping cart icon located at the top right of the page. Then enter your shipping destination information into the "Estimate Shipping and Tax" section of the shopping cart summary.
International Shipping
We are currently unable to deliver online orders outside of Australia.
If you are located outside of Australia and wish to place an order offline. Please contact our Mail Order department or send us an enquiry via the orange help bubble located at the bottom right of this page.
RETURNS
Online purchases can be returned/exchanged within 30 days. Some exclusions do apply.
Visit our Returns Policy page for details on how you can return an item.
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Ronstan Series 40 BB Single Becket Universal Head BlockCat. No. 6256Sup. No. RF40110Our Price $49.95