ANSI Standard Woodruff Key Size Table Chart ANSI B17.2-1967 (R1998) - Engineers Edge
All dimensions are given in inches.
The Woodruff Key numbers indicate normal key dimensions. The last two digits give the nominal diameter B in eighths of an inch and the digits preceding the last two give the nominal width W in thirty-seconds of an inch.
Key Identifier |
Nominal Size W X B |
Length F + .000 -.010 |
Height |
Distance E |
||||
---|---|---|---|---|---|---|---|---|
C |
D |
|||||||
Max. |
Min. |
Max. |
Min. |
|||||
202 |
1/16 × 1⁄4 |
0.248 |
0.109 |
0.104 |
0.109 |
0.104 |
1/64 |
|
202.5 |
1/16 × 5⁄16 |
0.311 |
0.140 |
0.135 |
0.140 |
0.135 |
1/64 |
|
302.5 |
3/32 × 5⁄16 |
0.311 |
0.140 |
0.135 |
0.140 |
0.135 |
1/64 |
|
203 |
1/16 × 3⁄8 |
0.374 |
0.172 |
0.167 |
0.172 |
0.167 |
1/64 |
|
303 |
3/32 × 3⁄8 |
0.374 |
0.172 |
0.167 |
0.172 |
0.167 |
1/64 |
|
403 |
1⁄8 × 3⁄8 |
0.374 |
0.172 |
0.167 |
0.172 |
0.167 |
1/64 |
|
204 |
1/16 × 1⁄2 |
0.491 |
0.203 |
0.198 |
0.194 |
0.188 |
3/64 |
|
304 |
3/32 × 1⁄2 |
0.491 |
0.203 |
0.198 |
0.194 |
0.188 |
3/64 |
|
404 |
1⁄8 × 1⁄2 |
0.491 |
0.203 |
0.198 |
0.194 |
0.188 |
3/64 |
|
305 |
3/32 × 5⁄8 |
0.612 |
0.250 |
0.245 |
0.240 |
0.234 |
1/16 |
|
405 |
1⁄8 × 5⁄8 |
0.612 |
0.250 |
0.245 |
0.240 |
0.234 |
1/16 |
|
505 |
5⁄32 × 5⁄8 |
0.612 |
0.250 |
0.245 |
0.240 |
0.234 |
1/16 |
|
605 |
3⁄16 × 5⁄8 |
0.612 |
0.250 |
0.245 |
0.240 |
0.234 |
1/16 |
|
406 |
1⁄8 × 3⁄4 |
0.740 |
0.313 |
0.308 |
0.303 |
0.297 |
1/16 |
|
506 |
5⁄32 × 3⁄4 |
0.740 |
0.313 |
0.308 |
0.303 |
0.297 |
1/16 |
|
606 |
3⁄16 × 3⁄4 |
0.740 |
0.313 |
0.308 |
0.303 |
0.297 |
1/16 |
|
806 |
1⁄4 × 3⁄4 |
0.740 |
0.313 |
0.308 |
0.303 |
0.297 |
1/16 |
|
507 |
5⁄32 × 7⁄8 |
0.866 |
0.375 |
0.370 |
0.365 |
0.359 |
1/16 |
|
607 |
3⁄16 × 7⁄8 |
0.866 |
0.375 |
0.370 |
0.365 |
0.359 |
1/16 |
|
707 |
7⁄32 × 7⁄8 |
0.866 |
0.375 |
0.370 |
0.365 |
0.359 |
1/16 |
|
807 |
1⁄4 × 7⁄8 |
0.866 |
0.375 |
0.370 |
0.365 |
0.359 |
1/16 |
|
608 |
3⁄16 × 1 |
0.992 |
0.438 |
0.433 |
0.428 |
0.422 |
1/16 |
|
708 |
7⁄32 × 1 |
0.992 |
0.438 |
0.433 |
0.428 |
0.422 |
1/16 |
|
808 |
1⁄4 × 1 |
0.992 |
0.438 |
0.433 |
0.428 |
0.422 |
1/16 |
|
1008 |
5⁄16 × 1 |
0.992 |
0.438 |
0.433 |
0.428 |
0.422 |
1/16 |
|
1208 |
3⁄8 × 1 |
0.992 |
0.438 |
0.433 |
0.428 |
0.422 |
1/16 |
|
609 |
3⁄16 × 11⁄8 |
1.114 |
0.484 |
0.479 |
0.475 |
0.469 |
5/64 |
|
709 |
7⁄32 × 11⁄8 |
1.114 |
0.484 |
0.479 |
0.475 |
0.469 |
5/64 |
|
809 |
1⁄4 × 11⁄8 |
1.114 |
0.484 |
0.479 |
0.475 |
0.469 |
5/64 |
|
1009 |
5⁄16 × 11⁄8 |
1.114 |
0.484 |
0.479 |
0.475 |
0.469 |
5/64 |
|
610 |
3⁄16 × 11⁄4 |
1.240 |
0.547 |
0.542 |
0.537 |
0.531 |
5/64 |
|
710 |
7⁄32 × 11⁄4 |
1.240 |
0.547 |
0.542 |
0.537 |
0.531 |
5/64 |
|
810 |
1⁄4 × 11⁄4 |
1.240 |
0.547 |
0.542 |
0.537 |
0.531 |
5/64 |
|
1010 |
5⁄16 × 11⁄4 |
1.240 |
0.547 |
0.542 |
0.537 |
0.531 |
5/64 |
|
1210 |
3⁄8 × 11⁄4 |
1.240 |
0.547 |
0.542 |
0.537 |
0.531 |
5/64 |
|
811 |
1⁄4 × 13⁄8 |
1.362 |
0.594 |
0.589 |
0.584 |
0.578 |
3/32 |
|
1011 |
5⁄16 × 13⁄8 |
1.362 |
0.594 |
0.589 |
0.584 |
0.578 |
3/32 |
|
1211 |
3⁄8 × 13⁄8 |
1.362 |
0.594 |
0.589 |
0.584 |
0.578 |
3/32 |
|
812 |
1⁄4 × 11⁄2 |
1.484 |
0.641 |
0.636 |
0.631 |
0.625 |
7/64 |
|
1012 |
5⁄16 × 11⁄2 |
1.484 |
0.641 |
0.636 |
0.631 |
0.625 |
7/64 |
|
1212 |
3⁄8 × 11⁄2 |
1.484 |
0.641 |
0.636 |
0.631 |
0.625 |
7/64 |
Dimensions in inches