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6 Diametral Pitch Ratings
14-1/2° and 20° Pressure Angle*
1-1/2" Face
Steel Spur Gears with Hubs
| Number of Teeth | Pitch Diameter | Outside Diameter | Stock Bore | Maximum Bore | Hub Diameter | Hub Projection | Style | Catalog Number | |
| 14-1/2° P.A. | 20° P.A. | ||||||||
11†◊ | 2.000 | 2.333 | 1" | 1-1/16" | 1-9/16" | 7/8" | Plain | ST-611 | TST-611 |
| 11† | 2.000 | 2.333 | 1" | 1-1/16" | 1-1/2" | 7/8" | Plain | ST-611-B | TST-611-B |
| 12◊ | 2.000 | 2.333 | 1" | 1-1/16" | 1-9/16" | 7/8" | Plain | ST-612 | TST-612 |
| 12 | 2.000 | 2.333 | 1" | 1-1/16" | 1-1/2" | 7/8" | Plain | ST-612-B | TST-612-B |
| 14◊ | 2.333 | 2.666 | 1" | 1-1/16" | 1-5/8" | 7/8" | Plain | ST-614 | TST-614 |
| 14 | 2.333 | 2.666 | 1" | 1-1/16" | 1-13/16" | 7/8" | Plain | ST-614-B | TST-614-B |
15 | 2.500 | 2.833 | 1" | 1-5/16" | 2" | 7/8" | Plain | ST-615 | TST-615 |
| 16◊ | 2.666 | 3.000 | 1" | 1-1/2" | 2-3/16" | 7/8" | Plain | ST-616 | TST-616 |
| 16 | 2.666 | 3.000 | 1" | 1-1/2" | 2-5/32" | 7/8" | Plain | ST-616-B | TST-616-B |
| 18 | 3.000 | 3.333 | 1" | 1-11/16" | 2-1/2" | 7/8" | Plain | ST-618 | TST-618 |
| 20◊ | 3.333 | 3.666 | 1" | 1-11/16" | 2-1/2" | 7/8" | Plain | ST-620 | TST-620 |
| 20 | 3.333 | 3.666 | 1" | 1-11/16" | 2-27/32" | 7/8" | Plain | ST-620-B | TST-620-B |
21◊ | 3.500 | 3.833 | 1" | 1-3/4" | 2-5/8" | 7/8" | Plain | ST-621 | TST-621 |
21 | 3.500 | 3.833 | 1" | 1-3/4" | 3" | 7/8" | Plain | ST-621-B | TST-621-B |
22 | 3.666 | 4.000 | 1" | 1-3/4" | 2-5/8" | 7/8" | Plain | ST-622 | TST-622 |
| 24 | 4.000 | 4.333 | 1" | 1-15/16" | 2-7/8" | 7/8" | Plain | ST-624 | TST-624 |
| 27 | 4.500 | 4.833 | 1" | 2" | 3" | 1" | Plain | ST-627 | TST-627 |
| 28 | 4.666 | 5.000 | 1" | 2" | 3" | 1" | Plain | ST-628 | TST-628 |
| 30 | 5.000 | 5.333 | 1" | 2-1/16" | 3-1/8" | 1" | Plain | ST-630 | TST-630 |
| 32 | 5.333 | 5.666 | 1" | 2-1/16" | 3-1/8" | 1" | Plain | ST-632 | TST-632 |
33 | 5.500 | 5.833 | 1" | 2-3/16" | 3-1/4" | 1" | Plain | ST-633 | TST-633 |
| 36 | 6.000 | 6.333 | 1" | 2-3/16" | 3-1/4" | 1" | Plain | ST-636 | TST-636 |
Cast Iron Spur Gears with Hubs
| Number of Teeth | Pitch Diameter | Outside Diameter | Stock Bore | Maximum Bore | Hub Diameter | Hub Projection | Style | Catalog Number | |
| 14-1/2° P.A. | 20° P.A. | ||||||||
| 22 | 3.666 | 4.000 | 1" | 1-7/16" | 2-1/2" | 1" | Plain | IS-622 | TIS-622 |
| 24 | 4.000 | 4.333 | 1-1/8" | 1-7/16" | 2-1/2" | 1" | Plain | IS-624 | TIS-624 |
| 27 | 4.500 | 4.833 | 1-1/8" | 1-7/16" | 2-1/2" | 1" | Web | IS-627 | TIS-627 |
| 30 | 5.000 | 5.333 | 1-1/8" | 1-7/16" | 2-1/2" | 1" | Web | IS-630 | TIS-630 |
| 32 | 5.333 | 5.666 | 1-1/8" | 1-7/16" | 2-1/2" | 1" | Web | IS-632 | TIS-632 |
| 33 | 5.500 | 5.833 | 1-1/8" | 1-11/16" | 3" | 1" | Web | IS-633 | TIS-633 |
| 36 | 6.000 | 6.333 | 1-1/8" | 1-11/16" | 3" | 1" | Web | IS-636 | TIS-636 |
40 | 6.666 | 7.000 | 1-1/8" | 1-11/16" | 3" | 1" | Web | IS-640 | TIS-640 |
| 42 | 7.000 | 7.333 | 1-1/8" | 1-11/16" | 3" | 1" | Web | IS-642 | TIS-642 |
| 44 | 7.333 | 7.666 | 1-1/8" | 1-11/16" | 3" | 1" | Web | IS-644 | TIS-644 |
| 45 | 7.500 | 7.833 | 1-1/8" | 1-11/16" | 3" | 1" | Web | IS-645 | TIS-645 |
| 48 | 8.000 | 8.333 | 1-1/8" | 1-11/16" | 3" | 1" | Web | IS-648 | TIS-648 |
| 54 | 9.000 | 9.333 | 1-1/8" | 1-11/16" | 3" | 1-1/4" | Spoke | IS-654 | TIS-654 |
| 56 | 9.333 | 9.666 | 1-1/8" | 1-11/16" | 3" | 1-1/4" | Spoke | IS-656 | TIS-656 |
| 60 | 10.000 | 10.333 | 1-1/4" | 1-11/16" | 3" | 1-1/4" | Spoke | IS-660 | TIS-660 |
| 64 | 10.666 | 11.000 | 1-1/4" | 1-11/16" | 3" | 1-1/4" | Spoke | IS-664 | TIS-664 |
| 66 | 11.000 | 11.333 | 1-1/4" | 1-11/16" | 3" | 1-1/4" | Spoke | IS-666 | TIS-666 |
| 72 | 12.000 | 12.333 | 1-1/4" | 1-11/16" | 3" | 1-1/4" | Spoke | IS-672 | TIS-672 |
84 | 14.000 | 14.333 | 1-1/4" | 1-13/16" | 3-1/4" | 1-1/4" | Spoke | IS-684 | TIS-684 |
| 96 | 16.000 | 16.333 | 1-1/4" | 1-13/16" | 3-1/4" | 1-1/4" | Spoke | IS-696 | TIS-696 |
| 108 | 18.000 | 18.333 | 1-1/4" | 1-13/16" | 3-1/4" | 1-1/4" | Spoke | IS-6108 | TIS-6108 |
| 120 | 20.000 | 20.333 | 1-1/4" | 2" | 3-1/2" | 1-1/2" | Spoke | IS-6120 | TIS-6120 |
| 132 | 22.000 | 22.333 | 1-1/4" | 2" | 3-1/2" | 1-1/2" | Spoke | IS-6132 | TIS-6132 |
| 144 | 24.000 | 24.333 | 1-1/4" | 2-1/8" | 3-3/4" | 1-1/2" | Spoke | IS-6144 | TIS-6144 |
† Special Pitch Diameter.
◊ Obsolete Style - Available only from existing stock.
* 14-1/2° Pressure Angle will not operate with 20° Pressure Angle.
Note: Gears shown in shaded areas are available in Cast Iron or Steel.
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