Colibri Sander BLO 80 2 1 C 30 Bedienungsanleitung PDF herunterladen (Seite 23)

MCD (e)

Service speed: 80000 rpm

Weight: 700 grams

Balance quality: G0.4

MCD (e)

m = 9549 G/n

MCD (e)

m = 9549 x 0.4

80000 = 0 . 048

So Permissible Unbalance (U per ) = 0.048

m x 0.7 kg

So Permissible Unbalance (U per ) = 0 . 034 gmm TOTAL

Permissible Unbalance ( Uper ) at C of G = 0 . 034 gmm TOTAL

For Symmetrical Rotor = 0 . 017 gmm Per Plane

But this is NOT a Symmetrical Roto

MCD

(

)

35% 65%

Left plane radius: 15 mm

Right plane radius: 9.5 mm

Permissible Unbalance ( Uper ) = 0 . 034 gmm TOTAL

Uper Left = 0.034 x 65% = 0.022 gmm = 0 . 0015 g @ 15 mm

Uper Right = 0.034 x 35% = 0.012 gmm = 0 . 0013 g @ 9 . 5 mm

Applying ISO 1940 on Aerostatics Spindle @ G1

Service speed: 80000 rpm

Weight: 700 grams

Balance quality: G1

MCD (e)

m = 9549 G/n

MCD (e)

m = 9549 x 1

80000 = 0 . 12

So Permissible Unbalance (U per ) = 0.12

m x 0.7 kg

So Permissible Unbalance (U per ) = 0 . 084 gmm TOTAL

Permissible Unbalance ( Uper ) at C of G = 0 . 084 gmm TOTAL

For Symmetrical Rotor = 0 . 042 gmm Per Plane

But this is NOT a Symmetrical Roto

Left plane radius: 15 mm

Right plane radius: 9.5 mm

Permissible Unbalance ( Uper ) = 0 . 084 gmm TOTAL

Uper Left = 0.084 x 65% = 0.055 gmm = 0 . 0036 g @ 15 mm

Uper Right = 0.084 x 35% = 0.03 gmm = 0 . 003 g @ 9 . 5 mm

Applying ISO 1940 on Aerostatics Spindle @ G0.4

C of G

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Colibri Sander BLO 80 2 1 C 30 Bedienungsanleitung Seite 23

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