Каталог Widia инструментальная оснастка - страница 1023
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Retention Knobs
WARNING
| Retention knobs are available in various styles and are not always | While WIDIA™ has endeavored to obtain accurate and up-to-date information |
| interchangeable because all are machine and spindle specific. The proper | regarding retention knob selection based on individual machine tool builder |
| retention knob must be used at all times with the appropriate adapter, | specifications, we cannot guarantee that the information and specifications |
| according to machine specifications as provided by the machine's original | contained in this catalog are complete and that they have not been modified |
| manufacturer. Failure to use the correct retention knob, or to adequately | or superseded by the manufacturer. You, the machine tool operator, |
| install and tighten the correct retention knob, may result in an adapter | are ultimately responsible for proper selection and use of retention |
| loosening. Using a combination of metric and non-metric components | knobs. The purchase of retention knobs from WIDIA is subject to WIDIA’s |
| can result in an inadequate coupling of the adapter to the spindle during | Standard Terms and Conditions of Sale. |
machining, causing the component to fail.
Machining center manufacturers use numerous types and styles of retention If a retention knob is not shown, please contact your WIDIA Representative knobs. WIDIA has listed some of the most popular retention knobs in the or call WIDIA’s Customer Service and have the following industry on the next few pages. information available:
| machine builder | machine builder’s drawing and/or numbers | machine model nu | mber |
| taper size | G thread | A angle | |
| D1 | D2 D3 | D4 | D5 |
| L | L1 L2 | through coolant needed? | O-ring needed? |
The machine builder should recommend the required tightening torque WIDIA has referenced a suggested maximum torque setting and offers for the retention knobs. This information is not always available. a specialized socket just for retention knobs. Please see these socket wrench sizes listed against each knob.
| taper size | suggested torque max (ft. lbs.) | suggested torque max (Nm) |
| 30 | 40 | 54 |
| 40 | 85 | 115 |
| 50 | 110 | 149 |