Page 408 - NORTON cutting-off and grinding wheels - industrial

CLEANING, POLISHING & MASKING 408
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
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