3M TYPE-27 - Wheel Mounting Details

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DUAL SIZE FLANGES FOR 3/8-24 SPINDLE TOOLS
Models 28403 and 28413 can take a Dual Size Flange Set to allow the use of wheels with either 16 mm or 7/8” center holes (CH).
NOTE: Both anges must face the wheel with the same size lip inserted in the wheel’s center hole.
MOUNTING 7/8” CENTER HOLE TYPE 27 WHEELS
Type 27 Wheels with 7/8” center holes (CH) may use at anges that have a 7/8” lip to center the wheel.
Figure 4 Figure 5
Figure 6
Figure 6A
Figure 6B
Figure 7
Figure 8
5/8”-11 threads per
inch Spindle with Upper
Flange properly
mounted
For Wheels less than
3/8” thick: Lower Flange
for 7/8” Type 27 Wheels
properly mounted
For Wheels 3/8” thick
and Greater: Lower
Flange for Type 27, 7/8”
Center Hole Wheels.
Note 7/8” lip is
facing the
wheel
Dual Size Flanges for 16 mm and 7/8” CH Wheels
Side A: 16 mm lip Side B: 7/8” lip
7/8” lip
3/8”-24 Spindle
Dual Size Flange ready for a
7/8” CH Wheel
Type 27 Wheel with 7/8”
CH properly centered
on Flange
NOTE: Depressed
Center of
Wheel
NOTE: 7/8” lip to center the wheel
Flanges for Type 27 7/8” Center Hole Wheels
Side A, 7/8” lip Side B, no lip