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Series 144 Medium-Duty and Series 145 Heavy-Duty 4 Jaw Independent Chucks

Medium Duty-144 Series
Heavy Duty-145 Series

  • Two-year warranty
  • Precision manufactured to fit types A, D, L, and threaded spindles or adapter mounting
  • Ductile iron body
  • Sizes 6″ – 16″
  • Hardened operating screws
  • Solid reversible hard jaws
  • Special jaw and jaw way design adding extra bearing surfaces, increases chuck life and rigidity
4-Jaw High Quality Independent Chucks
Chuck SizeAdapter MountingType A Spindle
Short Taper
Type D Spindle
Camlock
Type L Spindle
Long Taper
Model No.SizeModel No.SizeModel No.SizeModel No.
6614400--D-3614420L-00614431
6---D-4614421L-0614433
8814400A-5814410D-3814420L-00814431
8---D-4814421L-0814432
8-----L-1814433
101014400A-51014410D-41014421L-001014431
10---D-51014422--
10-A-61014411D-61014423L-01014432
10-A-81014412D-81014424L-11014433
121214400A-61214411D-61214423L-01214432
12-A-81214412D-81214424L-11214433
141414500A-61414511D-61414523L-11414533
14-A-81414512D-81414524L-21414534
161614500A-81614512D-81614524L-11614533
16-A-111614513D-111614525L-21614534
Larger diameter chucks available, contact us for price and delivery.
Dimensional Data for Adapter Mounting Chucks
Chuck SizeGripping CapacityWt.
ABCDEFGHJKLMin.Max.lbs
6"6.30"4.921"1.77"2.12".87".16"5.512".94"M10M107-1⁄8"5/16"5"16
8"7.87"4.921"1.97"2.83"1.22".16"5.512"1.26"M10M109-1⁄4"5/16"7"31
10"9.84"7.874"2.36"2.83"1.22".19"8.819"1.26"M12M1212"1/2"8"43
12"12.40"7.874"2.95"3.15"1.42".19"8.819"1.42"M12M1214"1/2"10"72
14"13.80"10.236"2.95"3.58"1.47".19"11.26"1.42"-M1216"3/4"12"126
16"15.75"10.236"4.05"3.58"1.47".19"11.26"1.42"-M1218"3/4"14"180
Mounting Plates for 144 and 145 Series Independent Chucks
Mounting plates are precision machined to suit the spindle nose of your machine. Plates are stocked semi-finished. If ordering plate separately, specify the model number of your chuck so that PBA can finish machine the adapter to suit your Pratt Burnerd chuck.
Type D Camlock Mountings
Spindle6"8"10"12"14"16"
D-360302060302010030201003020--
D-460302160302110030211003021--
D-5603022603022100302210030221203022-
D-6-6030231003023100302312030231203023
D-8--1003024100302412030241203024
D-11----12030251203025
Type A American Standard Short Taper A1 & A2 Spindles
Spindle6"8"10"12"14"16"
A-56030106030101003010---
A-660301160301110030111003011--
A-8--1003012100301212030121203012
A-11----12030131203013
Type L American Standard Long Taper Spindles
Spindle6"8"10"12"14"16"
L-006030316030311003031---
L-0603032603032100303210030321203032-
L-1--1003033100303312030331203033
L-2--1003034100303412030341203034
Threaded Spindles
Spindle6"8"10"
1-1⁄2" - 8603041603041-
1-3⁄4" - 8603042603042-
2-1⁄4" - 86030436030431003043
Hardinge 4° Taper Plate
Spindle6"8"
4° Taper604044604044
Special adapter plates available upon request. Specify chuck number and spindle nose specifications.
6", 8", 10" and 12" adapters are the same as 3 Jaw adapters.
For standard spindle dimensions, see our pdf catalog.