Wire brushes & Carbide burrs / 403 www.nortonabrasives.com MAXIMUM OPERATING SPEED TYPE DIAMETER (mm) MAX RPM TYPE DIAMETER (mm) MAX RPM WHEEL BRUSHES 80 10000 BEVEL BRUSHES 100 11000 100 8000 100/115 11000 125 6000 115 10000 150 6000 TWIST KNOTTED WHEEL BRUSHES 100 11000 180 6000 115 11000 200 4500 125 10000 250 3600 150/180 8500 250 - 1 row 3500 200 6500 300 3000 SHAFT MOUNTED WIRE BRUSHES 20 20000 CUP BRUSHES 60/65/75 11000 30 20000 60/65/75 11000 40 18000 60/65/75 10000 50 15000 75 9300 60 15000 80/100 8500 70 15000 125/150 6500 80 12000 The maximum RPM ratings are safety ratings not recommended operating speeds. The optimum operating speed is determined by the application and in most cases lower operating speeds will prove more efficient and achieve the best result. As a general guide we recommend the following peripheral speeds when working on the materials listed with: APPLICATION CRIMPED WIRE TWIST KNOTTED STEEL 30m/s 35-40m/s NON-FERROUS 18-20m/s - PLASTIC 15m/s - BRUSHING PRESSURE • Let the tip of the wire brush do the work. Operate the brush with the lightest pressure so only the tips of the wire come in contact with the work • If heavy pressure is used, wires will be over stressed, resulting in a wiping action, and if this is continued, the life of the brush will be shortened due to wire fatigue • Apply the work to the face of the brush ensuring as much of the brush face as possible is in full contact. Applying the work to the side or edge of the brushing tool will result in wire breakage and shortened brush life • Reversing the wheel brush rotation periodically will tend to increase the life of the brush. This results in the sharpening of the wire tips or ends, ensuring faster cutting action SIZE OF WIRE • Use the finest size of wire suitable for the application • Finer wire size will perform better and last longer than heavier WIRE BRUSHES & CARBIDE BURRS
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