We will be closed for the Christmas and New Year holidays from Dec. 22nd, 2025, to Jan. 6th, 2026. Orders placed after December 17th, 2025 will be shipped starting January 12th, 2026.

Ronstan

Series 125 RB Block, Single Upright Lead

Rating:
0%

Upright lead block

Special Price 603.71€ was 622.38€

On Request

SKU
RF128171

FEATURES

  • High static and dynamic load capacity
  • Keeps lines close to the deck
  • Cheek cut-outs for easy bearing cleaning and manintenance

PRODUCT INFORMATION

The self-contained alloy sheave packages provide reliable, low-friction performance at high loads. The high axial loads are carried by Torlon® roller needle bearings, while side thrust loads are taken up by Acetal ball bearings. 


APPLICATIONS

  • Typically used for halyards at the mast base.


MATERIALS

  • Alloy sheave and housing
  • Torlon® needle rollers
  • Black carbon Acetal ball bearings

TECHNICAL DATA

Sheave Ø 125 mm
Max. Rope Ø 16 mm
Max. Cable Ø - mm
Fastener Ø 10.0 + 8.0 mm
M.W.L. 3750 kg
B. L. 7500 kg
Weight 777 g