Bonded Abrasives / 257 www.nortonabrasives.com Die and pencil grinder Horizontal/straight shaft portable grinder MACHINE PICTOGRAMS MEASUREMENT GUIDE Description of Overhang Overhang is the distance between the grinder chuck and the abrasive on the spindle. The larger the overhang, the lower the maximum safe operating speed. Size Measured by diameter (D) x thickness (T) 1/2" OVERHANG D T Do not use if damaged Do not use for wet grinding (ISO7010) Only suitable for totally-enclosed machines Wear eye protection (ISO 7010) Wear protective gloves (ISO 7010) Refer to instruction manual/booklet (ISO 7010) Wear a mask (ISO 7010) Only suitable for wet grinding Donot usewithhand-heldgrindingmachine (ISO7010) Wear ear protection (ISO 7010) Only permitted for grinding at an angle greater than 10° Only to be used with a back-up pad Do not use for face grinding (ISO7010) Do not use if damaged Do not use for wet grinding (ISO7010) Only suitable for totally-enclosed machines Wear eye protection (ISO 7010) Wear protective gloves (ISO 7010) Refer to instruction manual/booklet (ISO 7010) Wear a mask (ISO 7010) Only suitable for w t grinding Donot usewithhand-heldgrindingmachine (ISO7010) Wear ear protection (ISO 7010) Only permitted for grinding at an angle greater than 10° Only to be used with a back-up pad Do not use for face grinding (ISO7010) Do not use if damaged Do not use for wet grinding (ISO7010) Only suitable for totally-enclosed machines Wear eye protection (ISO 7010) Wear protective gloves (ISO 7010) Refer to instruction manual/booklet (ISO 7010) Wear a mask (ISO 7010) Only suitable for wet grindin Donot usewithhand-held grindingmachine (ISO7010) Wear ear protection (ISO 7010) Only permitted for grinding at an angle greater than 10° Only to be used with a back-up pad Do not use for face grinding (ISO7010) Do not use if damaged Do not use for wet grinding (ISO7010) Only suitable for totally-enclosed machi Wear eye protection (ISO 7010) Wear protective gloves (ISO 7010) Refer to instruction manual/booklet (ISO Wear a mask (ISO 7010) Only suitable for wet grinding Donot usewithhand-heldgrindingmachine (ISO Wear ear protection (ISO 7010) Only permitted for grinding at an angle greater than 10° Only to be used with a back-up pad Do not use for face grinding (ISO7010) Do not use if damaged Do not use for wet grinding (ISO7010) Only suitable for totally-enclosed machines Wear eye protection (ISO 7010) Wear protective gloves (ISO 7010) Refer to instruction ma ual/bo klet (ISO 7010) Wear a mask (ISO 7010) Only suitable for wet grinding Donot usewithha d-heldgrindingmachine (ISO7010) Wear ear protection (ISO 7010) Only permitted for grinding at an an le greater th 10° Only to be used with a back-up pad Do not use for face grinding (ISO7010) Wear a mask (ISO 7010) Wear protective gloves (ISO 7010) Wear eye protection (ISO 7010) Wear ear protection (ISO 7010) Refer to instruction manual/booklet (ISO 7010) PERSONAL PROTECTION • For best mounted point performance, always run the mounted point at the maximum allowable speed according to ANSI B7.1. Refer to the speed chart included in each shipment for proper operating speeds. • Use “A” shapes for medium to heavy-duty blending. • Use “B” shapes for light deburring and finishing/polishing. • Use “W” shapes for offhand and precision grinding of medium to heavy stock. • Use 36 grit and coarser for rough grinding. • Use 60 and 90 grits for imparting fine finishes or when grinding on narrow surfaces. SPEC CHECK MAX RPM In rotating abrasives, the maximum permissible rotational speed is a factor of key importance that results from the maximum operating speed specified in the applicable standards as a function of the tool diameter and is given in revolutions per minute (1/ min. or min.-1). Maximum safe operating speeds of all mounted points is 33 m/sec. Max RPM is shown for each shape codes in the table. Max RPM is based on the shape and spindle combination with a maximum 25mm overhang. BONDED ABRASIVES
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