Brand: Ronstan
Ronstan Series 40 Ball Bearing Single Upright Lead Block (RF40171)
Ronstan Series 40 Ball Bearing Single Upright Lead Block (RF40171)
5 available
About this product
This Ronstan Series 40 ball bearing block features a single upright lead design, providing a low-profile solution for routing halyards and other sail control lines to cleats or jammers. It is built for reliable performance at the mast base using a 2-stage ball bearing system that ensures consistent operation across varying load ranges.
Key Features:
- Design: Low-profile single upright lead block.
- Construction: Grade 316 stainless steel load housing for durability.
- Performance: Precision-molded, UV-stabilized Acetal sheaves.
- Bearing System: 2-stage system featuring Acetal and Torlon ball bearings for low-friction operation.
- Application: Ideal for halyards at the mast base.
- Model Number: RF40171
- Secure checkout
- 21-day return requests
- Free standard shipping $100+
Product facts
- CT SKU
- CT-106467
- Model / MPN
- RF40171
- UPC / GTIN
- 9316800244249
- Package dimensions (H × W × L)
- 1" X 3" X 4"
- Package weight
- 0.14 lb
Specifications
- Type
- Ronstan Series 40 Ball Bearing Block - Single Upright Lead
Shipping & returns
Shipping & returns
Request an eligible return within 21 calendar days after delivery. Every physical return requires written approval and an RMA number and must be shipped within five business days after the RMA is issued. The customer pays return shipping for an ordinary return. Tug & Tow provides prepaid return shipping for a verified damaged, defective, short, or incorrect shipment. We do not charge a restocking fee. See Shipping & Returns for eligibility, exclusions, and details.
Fit & compatibility
Fit & compatibility
Review the product title, description, images, dimensions, part numbers, and manufacturer details before purchase. For fit-sensitive items, confirm compatibility with your boat, RV, trailer, vehicle, or equipment.
Need help choosing?
Need help choosing?
Send us the product link or SKU, plus details about your boat, RV, trailer, vehicle, or project. We will help you narrow down the right option when product fit is not obvious.
