Kitagawa BBT200, Инструкция по эксплуатации

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3-2. Relationship between gripping force and rotation speed
1. Maximum static gripping force
The static gripping force is the gripping force when the chuck is at a stop.
The power chuck has a mechanism to convert input force (piston thrust force, draw pipe
drawing force) from the cylinder to gripping force. Therefore, the gripping force when the
allowable maximum input force becomes the maximum static gripping force.
However, the gripping force is different depending on the state of grease lubrication, grease
in use, height of the jaw, etc. The maximum static gripping force specified in the
specification is the value under the following conditions:
・
The Kitagawa standard soft jaw is used as the jaw.
・
The attaching bolts of the soft jaw are tightened at the specified torque. (Refer to page
12)
・
The numerical values are obtained with the Kitagawa gripping force meter . The gripping
position of the gripping force meter is at a position 1/2 of the height of the soft jaw top
surface (height from the chuck surface to the top surface of the jaw).
・
CHUCK GREASE PRO is used. (Refer to page 31).
・
A variable displacement pump with the discharge volume of 20 liters/min or more is
used as the hydraulic source. The pressure is set by the pressure control equipment of
the pump itself, or the pressure reduction valve equipped separately.
Fig.5
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