Machining · Marine

Manufacture of a sheave for a brake unit

Manufacture of a sheave for a brake unit, machined from the dimensions of the damaged original component, with dimensional inspection and a compatibility check before fitting.

Discipline: Machining
Sector: Marine
Location: At anchor — Rio de Janeiro B.B
Year: 2026
Duration: 7 days

Objective

The problem that prompted the intervention

The sheave on the brake unit had failed, compromising the operation of the assembly. The replacement part was manufactured using the measurements and characteristics of the damaged original component as the reference, so that it could be fitted directly to the equipment without adaptation.

Contracted scope

Manufacture of the sheave to the dimensions of the damaged component
Central milling of the component
Machining and finishing of the required surfaces
Dimensional adjustment
Machining of holes and seats to match the original component
Visual and dimensional inspection
Compatibility check for fitting to the equipment

Execution

The sequence applied and the engineering decisions taken

The order below reproduces how the work was actually carried out, including the points where the condition found required a change of scope.

Survey of the dimensions and construction features of the damaged original component, taken as the sole manufacturing reference.
Manufacture of the sheave to the surveyed dimensions, reproducing the profile of the part being replaced.
Central milling of the component.
Machining and finishing of the surfaces required for the assembly to work.
Dimensional adjustment to guarantee the fit of the part in the equipment.
Machining of the holes and seats to match the original component.
Visual and dimensional inspection of the finished part.
Compatibility check for fitting to the brake unit.

Result

What the intervention delivered

The sheave was delivered approved in visual and dimensional inspection, with compatibility checked for fitting to the brake unit. The part reproduced the characteristics of the original component and was assembled without any adaptation.

7 days of execution

1 sheave manufactured

3 checks before release

Photographic record

Photographic record of the intervention

The sequence below follows the manufacture of the sheave, from the condition found in the equipment to the painted part.

The sheave in the equipment, with the groove fractured and heavy corrosion, in the condition found

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