RONSTAN RF20100 Series 20 BB Block – Single – Series 20 Ball Bearing Blocks

$20.00 inc GST

or 4 payments of $5.00 with Wizit learn more

RONSTAN RF20100 Series 20 BB Block – Single – Series 20 Ball Bearing Blocks

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In stock

SKU: RF20100 Category:

UPC: 9316800255504

Condition:  New

In stock



RONSTAN RF20100 Series 20 BB Block – Single – Series 20 Ball Bearing Blocks

Series 20 Ronstan’s Ball Bearing (BB) Blocks are a great all around solution. Ronstan’s Ball Bearing blocks have been designed and engineered for the small vessel market such as dinghies. Used on smaller boats for sheet, vangs, traveller and control line applications. They utilise a highly efficient, low friction bearing system for optimum sheeting and trimming performance.


Low friction
High static and dynamic load capacity

Precision moulded Acetal sheaves running on stainless steel or Torlonball bearings provide high performance & low friction.

Dinghy control lines
Dinghy vangs
Traveller controls


Stainless steel ball bearings
UV stabilised Acetal sheave
Grade 316 stainless steel load strap and head fitting
Impact and UV resistant, fibre reinforced Nylon cheeks


20 mm

Max. Rope
6 mm

Max. Cable
– mm

3.0 mm

250 kg

B. L.
550 kg

20 g

Additional information

Additional information








Price does not include shipping. Product will be shipped via Toll / Australia Post / Courier. Product can also be collected.



Shipping & Delivery
Prices do not include shipping.

Shipping quotes can be obtained by adding products to the cart and inputting your postcode.

$11.60 Brisbane Express - Postcodes 4000-4209, 4270-4299, 4500-4549, 9000-9725 up to 20kg

Boat Hut uses Toll Ipec Priority Service, Australia Post Express Post and Courier's Please. Boat Hut uses Australia Post or DHL International Service for New Zealand deliveries.

Free Local Pickup – by prior arrangement. We don’t always have all the products at our Acacia Ridge premises, but they may be at our warehouse. Warehouse collections can be arranged by prior arrangement - please contact us to discuss.

Order Tracking provided on all orders.

All orders will be processed within 2 business days - except backordered items. If we are unable to meet this timeframe we will contact you to provide details and options. If we are unable to ship your order within 3 business days we will offer you a refund in full or the option to wait for the goods to come into stock.

We are happy to ship to any country - and will provide a quote upon request. All overseas orders must be paid for via Paypal before your order is shipped.

Above pricing refers to regular size items that will fit in courier satchels - oversized items will require a freight quote.

Boat Hut reserves the right to refuse to fulfil an order that has the incorrect postage / freight collected at the time of sale. We will work with you to rectify the matter, if we are unable to come to a resolution then we will provide a refund in full.

Stock Availability

Boat Hut has approx 100,000 product lines coming from a number of warehouses across Australia.
Not all of these products are available for a walk-in purchase at Acacia Ridge - most times you will need to make arrangments in advance.
Please feel free to contact us to confirm our stock at Acacia Ridge or in our warehouses.
We try our best to keep the website up to date with current stock holdings.
We will accept back orders on out of stock items. All products are genuine & come with manufacturer's warranties.