RONSTAN Blocks - Core Blocks Size
75 - Overview
Ronstan Core Blocks™ Series 75 are a true
all round solution. A tuned 2-stage bearing system provides excellent
across the full
working load range with an integrated thrust bearing feature
and the resilience
to handle high dynamic or static loads. Acetal sheave, alloy
cheeks and stainless fixings complete the durable package. For
reliability and a long service life, these blocks are the right
halyards and control line applications for cruising and racing.
Universal Bearing -
Dynamic and high static load performance
The Ronstan Universal Bearing incorporates our proven 2-stage
Stage 1 - Under moderate loads, Acetal ball bearings ensure minimum
Stage 2 - Under heavy loads, where deformation of ball bearings
alone would result in increased friction, a sliding Acetal bearing
on a polished stainless steel race takes over, maintaining low
Additionally the ball bearings are configured to act as a thrust
bearing between the sheave and cheeks, preventing the sheave
from rubbing on the cheeks and causing friction when the line
lead in and out of the block isn’t perfect. Particularly
important for cheek blocks.
Alloy cheek plates.
Block cheeks are manufactured from the highest quality alloy
for maximum strength. Material optimisation and the cut-away
design minimises weight and allows easy fresh water rinsing of
salt and debris from the bearings. Cheek design has been further
styled with flaring at the block throat and reduced gap between
the cheek and sheave, minimising rope wear.
Ronstan Series 75 Core Blocks
We at Mauri Pro Sailing are fully committed to be your Ronstan Series 75 Core Blocks specialist not only providing the sailing community with a comprehensive and easy to use web site but with all the appropriate technical information that you might need to select your sailboat hardware and equipment. If you need any assistance selecting the appropriate Ronstan Series 75 Core Blocks
please contact us. Our crew is ready to help!
Pictures and text courtesy of the manufacturer.