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BRUSHES<br />
Angle grinders<br />
Important user information<br />
Brushes for angle grinders<br />
To be noted when selecting <strong>brushes</strong> and using angle grinders:<br />
1. Typical brush types for angle grinders<br />
Please note:<br />
Wheel <strong>brushes</strong><br />
Available with knotted<br />
and crimped wire.<br />
Cup <strong>brushes</strong><br />
Available with knotted and<br />
crimped wire, as well as<br />
abrasive filaments.<br />
When deciding on a suitable<br />
diameter for a cup brush, do<br />
not forget that it will spread out<br />
during operation. The key factor<br />
in determining the maximum<br />
possible brush diameter is<br />
therefore the size of the safety<br />
guard.<br />
Bevel <strong>brushes</strong><br />
Available with knotted<br />
and crimped wire.<br />
2. Determining the operating speed<br />
The maximum operating speed of a brush depends on its diameter. As in the case of a bicycle wheel, the larger it is the<br />
fewer turns are needed to cover a particular distance.<br />
The most common speeds are colour-coded to clearly show the differences and for ease of<br />
understanding:<br />
Diameter: Ø 115 mm Ø 125 mm Ø 150 mm Ø 180 mm Ø 230 mm<br />
(4 1 /2 ”)<br />
(5”)<br />
(6”)<br />
(7”)<br />
(9”)<br />
Operating speed: 12,500 rpm 11,000 rpm 8,500 rpm 8,500 rpm 6,500 rpm<br />
3. Which brush for which angle grinder?<br />
Brush type & trim<br />
Brush Ø<br />
60 65 75 80 90 100 115 120 125 150 178<br />
Wheel brush, knotted 115 115 125 150 180<br />
Wheel brush, crimped 115 115<br />
Cup brush, knotted 115 125 150 180 230<br />
Cup brush, crimped 115 125 150 150 / 180 230 230<br />
Cup, abrasive 150*<br />
* adjustable<br />
115 mm<br />
The machine information on the packaging<br />
The machine icon on all Osborn packaging will also show the<br />
maximum permitted machine size.<br />
16
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