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San Diego Marine Exchange
Ronstan "Orbit" Ball Bearing Cheek Blocks - 30, 40 & 55mm

Ronstan "Orbit" Ball Bearing Cheek Blocks - 30, 40 & 55mm

SKU: WROBBCB345


Orbit™ Cheek Blocks - Ball Bearing

Series 30 / 40 / 55 BB

Ball Bearing Orbit Blocks™ boast the highest strength-to-weight ratio available. This is achieved through all-composite reinforced polymer materials and multiple attachment options. Their precision design provides the optimum number of ball bearings for minimum friction, while weight reduction is achieved through the use of fibre-reinforced composites in the block head, cleat arms and beckets.

The proven Ronstan 2-stage bearing system (Series 30 and larger) features high-compression-grade Acetal ball bearings and a secondary full-contact bearing. This gives minimum friction across the full working load range. The sheave and bearing system is supported by a fibre-reinforced load frame, computer modelled and optimized using advanced stress analysis methods.

Sold individually


Click on the product thumbnails below for more details

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RonstanLogo
"Orbit" Ball Bearing Cheek Block - 55mm
Item #: 504670
Manufacturer Part #:RF55151
Estimated Retail: $50.96
Available:
$50.96/ EA
RonstanLogo
"Orbit" Ball Bearing Cheek Block - 40mm
Item #: 504829
Manufacturer Part #:RF45151
Estimated Retail: $30.56
Available:
$30.56/ EA
RonstanLogo
"Orbit" Ball Bearing Cheek Block - 30mm
Item #: 504922
Manufacturer Part #:RF35151
Estimated Retail: $17.46
Available:
$17.46/ EA