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Series 75 Core Block - Single
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 optimisation and the cut-away design minimises 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, minimising rope wear.
Universal head
The head assembly incorporates a brass bearing washer to provide smooth 360 rotation of the post and shackle. A set screw arrangement allows the head to be locked at 0 or 90.
Shackles are high quality forged grade 316 stainless steel.
Features:
Important Note: Timely deliveries are not guaranteed from Courier Companies due to Covid-19 pandemic, delays are possible.
USPS Promotional: Calculated at Checkout Page
BestWay Promotional: $9.99 (2-7 Business Days)
Ground Promotional: $11.99 (1-6 Business Days)
2-Days Promotional: $19.99 (2 Business Days)
Next Business Day Promotional: $49.99 (Next Business Days)
Get hundreds of items for the lowest shipping rates. You will only be charged for single shipment, if you go with our Promotional Best way Shipping option during Checkout.
Shipping will be done by UPS, FedEx or USPS. Courier's standard terms, conditions and policies will be applied. Please refer to courier's website for further details. Tracking info will be emailed to you when your order ships.
Our Promotional 2-Days shipping offers all items in one package. You can order as many items as you want in a single shipment. With this shipping method, our magic shipping algorithms shop several carriers to find the best mode of transportation that will deliver your packages in two days to the 48 contiguous states. That’s a tremendous value!
This rate does not apply on Hazmat and Truck Freight items
If any item has any limit to be shipped by the carrier chosen by the customer during checkout process, Gear Ramp LLC. reserves the rights to send it via any other channel.
Hassle Free customer service is our first priority at Gear Ramp LLC. When purchasing via the Internet we realize is sometimes difficult because you are unable to visualize or interact with the product. Because of this limitation, we offer our customers / fans several return options to insure your shopping experience with us is nothing less than extraordinary.
Guarantees and Warranties:
Gear Ramp LLC. will stand behind all products we sell with regards to manufacturing defects in workmanship and material for 30 days. After 30 days defective products should be returned to the manufacturer for warranty repair. We will always do everything in our power to take care of the problem regardless of when purchased.
Please send all return requests to info@gearramp.com. Please include your order number, the item(s) you wish to return, along with the reason for the return.
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