SKU: 35342372433

Ronstan Series 40 Orbit RT Sheave Replacement Cassette

Sale price$86.65 Regular price$96.28
Save 10%

Pay in installments of $24.07 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 24 - Aug 29

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Ronstan Series 40 Orbit RT Sheave Replacement CassetteSeries 40 Orbit RT Sheave Replacement Cassette The Series 40 ball bearing Orbit Blocks provides the perfect balance of strength, performance, and reliability. They offer class leading dynamic and static load ratings, the highest available in this size of performance blocks. Lightweight and strong toughened glass fiber reinforced nylon cheeks replace stainless steel straps used in traditional utility blocks the perfect balance of performance and

Series 40 Orbit RT Sheave Replacement Cassette

The Series 40 ball-bearing Orbit Blocks™ provides the perfect balance of strength, performance, and reliability. They offer class-leading dynamic and static load ratings, the highest available in this size of performance blocks. Lightweight and strong toughened glass fiber reinforced nylon cheeks replace stainless steel straps used in traditional utility blocks - the perfect balance of performance and reliability.

As well as traditional single swivel blocks, the range includes single and double sheave lashing or soft attachment options through to multiple sheave blocks including those with quad and quin sheaves. The range is highly versatile allowing a multitude of possible systems right up to a 12:1 purchase mainsheet system for off-the-beach performance catamarans.

Series 40 Orbit Blocks™ are fitted with our carbon-reinforced C-Cleat™ for secure rope holding with low entry and exit efforts, and fairleads for fast action from any angle. Cleat arms are made from stainless steel and adjustable for setting your preferred cleating angle.

Ball Bearing versions incorporate our 2-stage bearing system using ball bearings to minimize friction and a secondary full-contact bearing to maintain low friction across the full working load range.

High Load versions are designed specifically for any application where high dynamic or static loads are expected. They feature a high-strength grade 2205 stainless steel sheave & hub together with a triple bearing race to maintain low friction at very high loads. 

Features:

  • Class-leading dynamic and static load ratings, highest in their class
  • Lightweight, yet strong. Toughened, glass fiber reinforced nylon replaces stainless steel straps used in our traditional utility blocks
  • Low friction 2-stage ball bearing system for efficient and effortless trimming
  • Soft attachment, lashing, and traditional swivel shackle head options
  • Low profile and compact
  • High performance cleating

Applications:

  • Mainsheet systems and spinnaker sheets on dinghies, OTB catamarans and sportsboats to 8m (26ft)
  • Halyard, vang and backstay applications on boats to 9m (30ft)
  • Control line applications on larger yachts

Manufacturer Part Numbers: RF46000
GRP:WRO
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 35342372433

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.8 ★★★★★
Based on 13 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
L
Verified Purchase
Laura Munn
Los Angeles, US
★★★★★ 3
Don’t hate it don’t love it.
Size: 23" x 23", Color: Grey
It’s a two piece and it’s pretty stiff. The dogs like it though.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2026
V
Verified Purchase
V. Collier
Grantham, US
★★★★★ 5
Cute and Sturdy Cat Scratcher
Size: Large - 27" H
Very nice scratcher that is reasonably priced. Was very easy to put together...literally took me less than 5 minutes. The base is nicely weighted, so no worries about my x-large kitties knocking it over. Well made, study and it's so cute. It's a nice size also. My cats love it. Happy I bought this item and a bargain at the price I paid!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 6, 2024
B
Verified Purchase
Bekki Kilpatrick
Birmingham, US
★★★★★ 5
Great Cat Gift
Size: Large - 27" H, Size: Large - 27" H
I thre some catnip at it and she loved it. She scratched on it all the time now. It’s sturdy for to to rub against and really go at it. I’m so glad I got it. It’s cute too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 14, 2026
G
Verified Purchase
greg walsh
Natrona Heights, US
★★★★★ 5
Great purchase!
Size: Large 30.7” (77.9cm) H, Size: Large 30.7” (77.9cm) H
Easy to put together. Light but sturdy. My cat took to it right away. Will buy again once worn out!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
L
Verified Purchase
Lisa morin
San Leandro, US
★★★★★ 4
Good value for price
Size: Medium - 25.6" H
Easy to put together, aesthetically pleasing. It is relatively sturdy for a cat scratcher. Kat does not seem super interested in this one and we have several others that he is so I’m not sure what happened there.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 8, 2026

recommand products