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Universal Ball-Lok Power Chuck

Forkardt UBL Universal Ball-Lok Power Chuck

N.A. Woodworth’s comprehensive line of workholding begins with the “UBL”. It is “The Original” used industry wide and it sets the standard for all other power chucks.

The UBL features a positive pullback action chuck and the chuck is internally lubricated with a sealed design to keep out chips and other contaminants. The jaw homing feature allows jaws to compensate for variations in the part, and jaws for different workpieces can be easily exchanged.

The Universal Ball-Lok power chuck offers an optional on/off feature which allows an easy change from centralizing to compensating, and there is also an option of a higher top plate design to swallow long workpieces.

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Technical Data
Type / Size UBL160 UBL200 UBL250 UBL300 UBL380 UBL460
O.D. Diameter [mm] 160 200 254.1 298.6 381 457.3
Height [mm] 72.2 84.2 103.2 103.2 116.7 116.7
Actuator Stroke [mm] 11.6 14.3 17.6 17.7 22.3 22.3
Chuck mounting [mm] 104.8 133.4 171.4 171.4 235 330.2
Max. Drawbar Force 2 Jaw [daN] 1700 2600 3100 3550 4400 4400
Max. Static Clamping Force Fsp max. [daN] 4200 6400 7500 8600 10700 10700
Max. Speed RPM [minu02c9¹] 5500 4200 3600 3200 2600 2100
Weight (with jaws) [Kg] 12.41 26.82 41.65 58.2 123.8 152.41
Part No. 2 Jaw Centralizing UBL160010 UBL200010 UBL250010 UBL300010 UBL380010 UBL460010
Part No. 3 Jaw Centralizing UBL160000 UBL200000 UBL250000 UBL300000 UBL380000 UBL460000
Part No. 2 Jaw Compensating UBL160012 UBL200012 UBL250012 UBL300012 UBL380020 UBL460012
Part No. 3 Jaw Compensating UBL160002 UBL200002 UBL250002 UBL300002 UBL380002 UBL460002
All information is subject to change without notice
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