| Part | A | B | C | D | L | PL | Pitch |
| Number | Dia. | Thread | Dim | Dim | Dim | Dim | |
| R301 | 1.000 | ||||||
| R302 | 1.250 | ||||||
| R303 | 1.500 | ||||||
| R304 | 1.750 | ||||||
| R305 | 2.000 | Please | See | Please | |||
| R306 | 2.250 | Specify | Note | Specify | |||
| R307 | 2.500 | When | Below | When | |||
| R308 | 2.750 | Ordering | Ordering | ||||
| R309 | 3.000 | ||||||
| R310 | 3.250 | ||||||
| R311 | 3.500 | ||||||
| R312 | 3.750 | ||||||
| R313 | 4.000 | ||||||
| R314 | 4.125 | ||||||
| R315 | 4.250 |
*Note: Combination pitches are available only in 20 degree
pressure angle.
All dimensions are in inches.
| Formula to Calculate "PL" Dimension |
| PL = (A/2) - .125 -(1/Pitch) |
| Example (for "A" = 2.00; Pitch = 6): .7083 = (1.000) - .125 - (.1666) |
| R301 | - | 2.50 | - | 12.50 | - | 20 | - | 8 | - | 3/4 | - | 16 | - | .500 |
| Series # | Uncut Length "C" | Overall | Pressure | Pitch* 3 D.P. thru | "B" | "D" | "D" | |||||||
| (enter 0 for | Length "L" | Angle* | 48 D.P. | Dim. | Dim. | Dim. | ||||||||
| teeth full length) | 14-1/2 or 20 | combination, |
B |
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| fractional | Thread | |||||||||||||
| & module |