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Chips round clearance holes in material surface; non-friction side Acceptable if: <= 0,5% surface area; <=30% thickness but no more than 2 allowed.

Broken yarn in surface; non-friction side Acceptable if: <=1% of area; <=30% of thickness, no more than 2 allowed.

Broken yarn in surface; friction side Acceptable if: <= 0,5% of area: <= 30% of thickness no more than 2 allowed.

164. Blisters

Blisters Not acceptable.

165. Pressed in yarn

"Pressed in" yarn Acceptable providing it is securely bonded to the disc and is wholly contained in one segment, no more than 2 allowed.

Trazas de rectificación sobre la superficie Aceptable si se cumplen las tolerancias dimensionales

Rebabas de taladro sobre la superficie del radio interior Inaceptables

Rebabas de taladro sobre la superficie de radio exterior Aceptables si la altura <= 1mm

169. Porosidad

Porosidad Inaceptable

"Pequenas cavidades" superficiales Típicas de ciertos materiales. Aceptables

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