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Advanced Engineering
Precision Manufacturing
Global Service and Support
Parlec
By any Measure, Measurably Better
By any Measure, Measurably Better
Products
CAT V-Flange Taper Specifications
- Meets or exceeds ANSI B5.50- 1994 specifications and all current specification updates except where improvements are made for high speed operation.
- Taper is toleranced so that any error increases rate of taper only. Refer to Manufacturing Specifications for tolerance specifications.
- D2 Dimension must be held for a minimum of 1.375” from gageline. This is a safe zone which provides clearance for tool changes. Some machines do not require a safe zone and can use a modified version of this design.
- Parlec provides tooling in a variety of taper styles including BT, NMTB, ISO 7388 (DIN NOTCH), ISO 7388/1 (DIN 69871/B), Morse, Automotive, Kearney and Trecker, Sundstrand, and others upon request.
- Refer to Manufacturing Specifications for taper accuracies.
Technical Data
| Taper Type | Gageline D1 | D2 | D3 | L1 | L2 | L3 | L4 | Thread |
|---|---|---|---|---|---|---|---|---|
| C30 | 1.250 | 1.250 | 1.812 | 1.875 | 0.638 | 0.735 | 0.640 | 1/2 – 13 |
| C40 | 1.750 | 1.750 | 2.500 | 2.687 | 0.640 | 0.983 | 0.888 | 5/8 – 11 |
| C45 | 2.250 | 2.250 | 3.250 | 3.250 | 0.770 | 1.235 | 1.140 | 3/4 – 10 |
| C50 | 2.750 | 2.750 | 3.875 | 4.000 | 1.015 | 1.478 | 1.383 | 1 – 8 |
| C60 | 4.250 | 4.250 | 5.500 | 6.375 | 1.020 | 2.235 | 2.140 | 1-1/4 – 7 |

Made in USA