Skip to product information

Ronstan Series 40 Ball Bearing Stand-Up Orbit Block™ RF48140

Ronstan Series 40 Ball Bearing Stand-Up Orbit Block™ RF48140

Excellent 4.9
19,544 Reviews
Designed & Developed in Los Angeles, CA
Shopify Secure
Recent Orders Widget
400+ orders
in the last 24h
465 sold in the past 24 hours
401 people are viewing this item
Only 1% left in stock
Regular price $34.64
Regular price $34.64 Sale price $45.58
SAVE 24% Sold out
Ronstan Series 40 Ball Bearing Stand-Up Orbit Block™ RF48140 - Bosuns Boat

Ronstan Series 40 Ball Bearing Stand-Up Orbit Block™ RF48140

Regular price $34.64
Regular price $34.64 Sale price $45.58
SAVE 24% Sold out
check_box

🔒 Order with Confidence

🔒 Order with Confidence

✅30-Day Money Back Guarantee — no risk trying it.
🚚Free shipping available. Orders processed within 24–48 hours.
🔐Secure & encrypted checkout with trusted payment providers.

Shipping & Delivery Information
Order today, estimated delivery Oct 20 - Oct 21
Safe & secure checkout powered by Shopify
4–5 Business Day Delivery
90-Day Free Returns
Delivery available to United States

Single sheave stand-up block with saddle & spring included

FEATURES

2-stage ball bearing system.

Stainless steel shackle head for unlimited block rotation, and compatibility with sharp fixing points.

Spring and saddle included.

APPLICATIONS

Mainsheet systems and spinnaker sheets on dinghies, off-the-beach catamarans and sportsboats to 8m (26ft).

Halyard, vang and backstay applications on boats to 8m (26ft).

Control line applications on larger yachts.

MATERIALS

  • Sheave and ball bearings: High compression strength acetal.
  • Frame/cheeks: Toughened, glass fibre reinforced nylon.
  • Head fittings, hubs and fixtures: Grade 316 stainless steel.

SPECIFICATIONS

Product Specifications
B.L. (kg) 800
M.W.L. (kg) 400
Max. Rope diameter (mm) 10
Weight (g) 70
Fastener Ø (mm) 5
Fastener Hole Centres (mm) 36
Qty. Fasteners 2
View full details