Ronstan Series 75 RB Block, Single Upright Lead

Ball Bearing models have Torlon® needle rollers for axial loads, and acetal ball bearings for side thrust loads.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.

Our Part # RONRF78171 | Ronstan Part # RF78171

Features:

• High static and dynamic load capacity
• Keeps lines close to the deck
• Cheek cut-outs for easy bearing cleaning and maintenance
• Blocks can be disassembled for servicing