SKU: 34381210687

Ronstan Series 40 Ball Bearing Orbit Block - Single - Becket - Cleat - Swivel Head

Sale price$91.05 Regular price$101.17
Save 10%

Pay in installments of $25.29 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 19 - Aug 24

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Ronstan Series 40 Ball Bearing Orbit Block - Single - Becket - Cleat - Swivel HeadSeries 40 Ball Bearing Orbit Block Single Becket Cleat Swivel Head Features: Ultra Lightweight Low friction 2 stage Orbital ball bearing system Highest working load in its class Low profile and compact High performance cleating Lightweight Kilogram for kilogram of working load, BB and RT Orbit Blocks are the worlds lightest. The unique orbital design allows the bearing to only be in the active areas of the floating sheave. This minimizes the mass of

Series 40 Ball Bearing Orbit Block - Single - Becket - Cleat - Swivel Head

Features:

  • Ultra Lightweight
  • Low friction 2-stage Orbital ball bearing system
  • Highest working load in its class
  • Low profile and compact
  • High performance cleating

Lightweight

Kilogram for kilogram of working load, BB and RT Orbit Blocks™ are the world’s lightest. The unique orbital design allows the bearing to only be in the active areas of the floating sheave. This minimizes the mass of the inactive return race and hub.

Weight and bulk are further reduced in the different block configurations. The ball bearing single and becket block has a through-sheave becket arrangement. The result? The lowest weight possible.

Multi-sheave blocks have only single intermediate cheeks and an ultra-light and efficient head arrangement. This gives a 30% weight saving advantage over the nearest competitor. Other brands just link together their single blocks. This results in unnecessary double cheeks between each sheave, held together by a heavy steel channel across the top of the block.

Highest Working Load In It's Class

The orbital ball-bearing arrangement gives the largest possible bearing race diameter. This maximizes load performance. The proven Ronstan 2-stage bearing system features high compression grade acetal ball bearings and a secondary full-contact bearing. This gives minimum friction across the full working load range.

The floating sheave and bearing system is supported by a fiber-reinforced load frame. The design was computer modeled to be stress optimized.

Applications:

  • Mainsheet systems on spinnaker sheet on dinghies to 5m (16ft)
  • Spinnaker sheets on dinghies, sportsboats and small keel boats to 5m (16ft)
  • Halyard, vang and backstay applications on boats to 8m (26ft)
  • Control line applications on larger yachts

Materials:

  • Ball Bearings - High compression strength carbon black Acetal.
  • Stage 2 Bearing - Glass fibre reinforced, MoS2 impregnated Nylon
  • Frame/Cheeks - Toughened, glass fibre reinforced Nylon
  • Sheave - Carbon fiber reinforced, PTFE impregnated Nylon

Manufacturer : Ronstan
Manufacturer Part No : RF45130
UPC : 9316800455256
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: 34381210687

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.0 ★★★★★
Based on 24 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
B
Verified Purchase
Belle
Belleville, US
★★★★★ 5
Great when applied correctly!!
Color: 02 - Untinted (1.7 oz)
Great sunscreen!! I was looking for a new sunscreen after I was prescribed tretinoin and sunscreen is a must! It hasn't broken me out and have noticed my skin tone is more even. I was having issues of the sunscreen pilling so my advice would be to pat into the skin first and then rub to fully blend it in. I do wear makeup everyday so applying this way makes my makeup lay so flawlessly. It has that sunscreen smell that lingers after application but it feels so hydrating that I don't always need to also use a moisturizer, applied right after toner and serums in the morning.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
B
Verified Purchase
BJF
Grantham, US
★★★★★ 5
Great for sensitive skin protection
Color: 02 - Untinted (1.7 oz)
I have very sensitive skin especially anything that has SPF in any amount over 15. Since I have had a few issues with skin cancer on and around my face I needed something that had a greater SPF rating. This has worked great! I have not had any allergic reaction to it! It goes on smoothly, not heavy and provides good protection.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
J
Verified Purchase
jxflyer
Boise, US
★★★★★ 5
Fantastic sunscreen!
Color: 02 - Untinted (1.7 oz)
This stuff is worth the price. We use it daily. It goes on clean, not greasy. Smells great and provides excellent sun protection. We’ve used it at the beach on occasion and it protects for several hours. I am exposed to sun for many hours at work and this provides great protection for my face. It IS expensive, however, one pump applied to my face is enough to protect my face for many hours at work. I usually apply one to each arm as well. I’ve yet to find something that goes on as well, smells great and leaves your skin feeling moisturized while adding great protection. In my opinion it is worth the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 27, 2026
N
Verified Purchase
Nancy H
Phoenix, US
★★★★★ 5
Effective sunscreen protection
Color: 02 - Untinted (1.7 oz)
This product goes on smooth under makeup or by itself. It works great! I have applied the sunscreen at 8:00 in the morning and been in and out of the sun throughout the day and received no sunburn. I felt confident my skin was protected all day.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
F
Verified Purchase
Fozzie's Mom
Lexington, US
★★★★★ 4
Wonderful sunscreen, but pricey
Color: 02 - Untinted (1.7 oz)
I love this sunscreen. I use it as a daily moisturizer for my face and hands. After I gently rub it on, my skin looks more supple without any greasy residue. I've been using it for years, and I'm told that I look younger than my age (68). And not just from those who are looking to complement me, but from my new dermatologist. The only reason I'm giving it 4 stars is that its current price is out of my league. But for those who can afford it, EltaMD is a winner.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 3, 2026

recommand products