3M TYPE-27 - Page 12

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3M™ Fibre Disc Mounting Hardware and Usage
Fibre Discs are a non-bonded abrasive disc, (not a wheel) and may be mounted to Grinders for some similar metal working applications as Type 27 Wheels.
FIBRE DISC MOUNTING HUBS AND DISC PLATES
The Hub attaches to the spindle of the tool. It provides a mounting base for the Disc Pad Face Plate.
Figure 11
Figure 12 Figure 13
Figure 9
Figure 10
Hubs for Fibre Disc Mounting:
3M PN 28442 Disc Pad Hub for Short Shaft Tools 3/8-24 INT, 5/8-11 EXT
3M PN 28476 Low Prole Disc Pad Hub 5/8-11 INT
Type 27 Wheel with 7/8” CH
properly mounted to Upper
Dual Size Flange
Dual Size Lower Flange
properly mounted with 7/8”
CH Type 27 Wheel
5/8”-11 Threads per inch Spindle
3M PN 28476 Low Prole Disc Pad Hub 5/8-11 INT properly
mounted on 5/8-11 Spindle
3/8”-24 Threads per inch Spindle
16 mm lip
NOTE: Depressed Center
of Wheel