Flanged adapters are machined from forged alloy steel. The resulting one-piece hub design distributes mounting pressures away from the bore, the weakest part of the grinding wheel. The inherent rigidity of one-piece design and the precision ground flange provides identical radial load-bearing surfaces for positive wheel lock and better spindle driving torque to the abrasive wheel. All surfaces are ground concentric and square for optimum surface finishes. Completely heat treated, flanged adapters are safe to use and maintain their rigidity 
| CATALOG No. | | DIMENSIONS |
| | A | D | E |
| | 00446 | | 0 to 1/2 | 1-1/4-16LH | - | | 00564* | | 0 to 1/2 | 1-1/4-16LH | 1/8 | | 00158 | | 0 to 1/2 | 1-1/4-16RH | - | | 00457* | | 0 to 1/2 | 1-1/4-16RH | 1/8 |
| *Spindle mounting bolt 14362 and retaining ring 04269 included. |
Cup wheel adapters are made with a THIN-WALL FRONT FLANGE design to give maximum usage of cup wheel depth. Fully HEAT TREATED, and made from SOLID BAR STOCK, cup wheel extension adapters are RIGID to provide positive lock. A hardened nut locks the wheel from the back of the adapter. Because of this nut configuration, RH threads are used for CW spindle rotation and LH threads are used for CCW rotation; providing a safe locking system that WILL NOT LOOSEN during spindle rotation 
| CATALOG No. | | DIMENSIONS | | | | A | D | E | | | 00289 | | 3/8 to 5/8 | 1-1/4-16RH | - | | 00290** | | 3/8 to 5/8 | 1-1/4-16RH | 1/8 | ** Includes spindle mounting bolt 14362 only
†Grinding wheel not included |
|
ROTATION:
RH: Right-hand threads for CCW spindle rotation
LH: Left-hand threads for CW spindle rotation 1 2 3 4 5 6 7 8 9 10 11 12 |