Pull studs are important parts for connecting machine tools and cutting tools,
and they have extremely high precision, rigidity and reliability.
ANSI/ASME B5.50-1985 RETENTION KNOB
| HT-0098 | ANSI/ASME B5.50-1985 RETENTION KNOB | |||||||
| Order No. | D1 | D2 | M | L | L1 | L2 | H | H1 |
| LDA-30 | 9.78 | 13.21 | 1/2"-13 | 27.94 | 11.68 | 8.13 | 2.54 | 1.01 |
| LDA-40 | 12.45 | 18.80 | 5/8"-11 | 38.10 | 16.26 | 11.18 | 3.05 | 1.52 |
| LDA-45 | 15.37 | 23.88 | 3/4"-10 | 45.72 | 20.83 | 14.73 | 4.06 | 2.03 |
| LDA-50 | 20.83 | 28.96 | 1"-8 | 58.42 | 25.4 | 17.78 | 5.08 | 2.54 |
Lock and fasten tool holders on machine spindle by spindle drawbar grippers, preventing loosening during heavy cutting.
Assist taper positioning to ensure low runout and stable machining accuracy.
Bear cutting torque to avoid slipping between spindle and tool holder.
Serve as gripping point for ATC automatic tool change arms.
Multiple standards (BT/HSK/CAT/SK) compatible with various spindles and tool holders.
Uniform stress distribution reduces wear on spindle taper and tool holder threads.
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