Ronstan 75mm Mast Base Core Block
Ronstan 75mm Mast Base Core Block
72 in stock
SKU:RF74108A
Couldn't load pickup availability
Payment
Payment
- Credit Cards: We accept major credit cards, including Visa, Mastercard, American Express, and Discover.
- PayPal & Venmo: Available on desktop and mobile. Pay with your PayPal balance or a linked payment method.
- Google Pay: Simplify your checkout process using these digital wallets.
- Shop Pay: For faster checkouts and secure payment processing.
Shipping
Shipping
ORDER PROCESSING:
Please allow 1-3 days to process your order.
SHIPPING CUTOFF TIME:
Same day shipping cutoff time is 3PM Eastern Standard
DELIVERY TIMES:
Our default shipping method is Ground shipping and on average is 4-7 days till delivery is made. We offer various expedited shipping methods that can be viewed in checkout.
STORE PICKUP - 12 Hammock Rd South, Unit 105, Westbrook, CT 06498
Orders can be picked up daily, from 9AM-5PM, Monday-Friday. An email will be sent when your order is ready for
pickup.
Return
Return
At Fusion Outfitters, we aim to ensure you’re completely satisfied with your purchase. If you need to return an item, you have 60 days from the date of delivery to initiate a return.
Eligibility for Returns:
To be eligible for a return:
- The item must be in its original condition—unused, unworn, with all tags still attached, and in its original packaging.
- You’ll need the receipt or proof of purchase.
Please note, returns must be authorized before sending any items back. Items returned without prior authorization will not be accepted.
How to Start a Return:
If you wish to return an item, simply contact us at
with your order number and details about the item you'd like to return.
Once your return is approved, we’ll provide you with a prepaid return shipping label (for eligible returns) and instructions on how to send back your item.
Who Pays for Return Shipping?
- If the item was defective, damaged, or incorrect, Fusion Outfitters will cover the cost of return shipping.
- If the return is due to any other reason, such as change of mind, the customer is responsible for return shipping costs.
Product Description
Features
Measurements
Sheave Ø - 3 in.
Max. Rope Ø - 9/16 in.
Max. Cable Ø - in
Pin Ø - 5/16 in.
M.W.L. - 3000* lb.
B. L. - 6600* lb.
Weight - 8.1 oz.
Product Information
Core Blocks are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high dynamic or static loads. Acetal sheave, alloy cheeks and stainless fixings complete the durable package. For reliability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.
Universal Bearing
Dynamic and high static load performance
The Ronstan Universal Bearing incorporates our proven 2-stage bearing system
Stage 1 - Under moderate loads, Acetal ball bearings ensure minimum friction.
Stage 2 - Under heavy loads, where deformation of ball bearings alone would result in increased friction, a sliding Acetal bearing on a polished stainless steel race takes over, maintaining low friction performance.
Additionally the ball bearings are configured to act as a thrust bearing between the sheave and cheeks, preventing the sheave from rubbing on the cheeks and causing friction when the line lead in and out of the block isn't perfect. Particularly important for cheek blocks.
Alloy cheek plates
Block cheeks are manufactured from the highest quality alloy for maximum strength. Material optimization and the cut-away design minimizes weight and allows easy fresh water rinsing of salt and debris from the bearings. Cheek design has been further styled with flaring at the block throat and reduced gap between the cheek and sheave, minimizing rope wear.
Applications
Materials
