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Description
Ronstan Series 40 Fiddle BlockProduct Description Ronstan Series 40 Fiddle Block Features Low friction Acetal or Torlon bearing system Lightweight Cheek cut outs for easy bearing maintenance Slotted pin shackle eliminates fouled lines Low friction, 2 stage ball bearing system Sheave 1 9 16 + 15 16 in. Max. Rope 5 16 in. Max. Cable Pin 3 16 in. M. W. L. 770 lb B. L. 2200 lb Weight 3. 2 oz. Product Information Sheaves running on Acetal or Torlon ball bearings provide high
Product Description
Ronstan Series 40 Fiddle Block
Features
Low friction Acetal or Torlon bearing system
Lightweight
Cheek cut-outs for easy bearing maintenance
Slotted pin shackle eliminates fouled lines
Low friction, 2-stage ball bearing system
Sheave 1 9/16 + 15/16 in.
Max. Rope Ø - 5/16 in.
Max. Cable Ø - -
Pin Ø - 3/16 in.
M.W.L. 770 lb
B.L. 2200 lb
Weight - 3.2 oz.
Product Information
Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required
Applications
Mainsheet
Halyard
Vang
Spinnaker control lines on off-the-beach catamarans, one design classes and sports boats up to 8m 926 ft)
Typically used in direct 4:1 purchase systems such as mainsheets and boom vangs
On larger boats they are used for fine-tune mainsheet tackles, outhauls, cunninghams, checkstays, genoa lead pullers and traveller controls.
Materials
Acetal ball bearings
UV stabilized Acetal sheave
UV stabilized Acetal sheave
Grade 316 stainless steel load strap and head fitting
Features
Product Information
Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required
Applications
Materials
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.3 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
Fast delivery and good quality part
Good quality snug fit. Works as should.
Only issue I had was whe tightening oil cap back on the 18 ft-lb torque made this part slip.
I used material to get a better grip and torqued slow but it still slip before the torque gauge read 18.5
No leaks! So it’s all good 😊
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026
★★★★★ 5
Fit like a glove
After going to 3-4 different auto places with no luck Amazon saved the day
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Reviewed in the United States on April 12, 2026
★★★★★ 5
My husband says it works good
Works good for a Volvo
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2026
★★★★★ 5
Diy tool good stuff
Good fit works as advertised
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 25, 2026
★★★★★ 5
Práctico
Tal cual a la medida que do perfecto para los cambios de filtro llego sin daños
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2026
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