800.253.0820
3977 Emerald Dr., Kalamazoo, MI 49001
Series 144 Medium-Duty and Series 145 Heavy-Duty 4 Jaw Independent Chucks
Untitled Document

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

See complete product details in our latest catalog >>

Table Test

4-Jaw High Quality Independent Chucks
Chuck Size Adapter Mounting Type A Spindle
Short Taper
Type D Spindle
Camlock
Type L Spindle
Long Taper
 Model No.SizeModel No. SizeModel No.SizeModel No.
6 0614400 - - D-3 0614420 L-00 0614431
6 - - - D-4 0614421 L-0 0614433
8 0814400A-5 0814410D-3 0814420L-00 0814431
8---D-4 0814421L-0 0814432
8-----L-1 0814433
10 1014400 A-5 1014410 D-4 1014421 L-00 1014431
10 - - - D-5 1014422 - -
10 - A-6 1014411 D-6 1014423 L-0 1014432
10 - A-8 1014412 D-8 1014424 L-1 1014433
121214400A-61214411D-61214423L-01214432
12-A-81214412D-81214424L-11214433
14 1414500 A-6 1414511 D-6 1414523 L-1 1414533
14 - A-8 1414512 D-8 1414524 L-2 1414534
161614500A-81614512D-81614524L-11614533
16-A-111614513D-111614525L-21614534
Larger diameter chucks available, contact us for price and delivery.

Table Test

Dimensional Data for Adapter Mounting Chucks
Chuck Size Gripping CapacityWt.
 A BCDEFGHJKLMin.Max.lbs
6" 6.30" 4.921" 1.77" 2.12" .87" .16" 5.512" .94" M10 M10 7-1⁄8" 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" M12 M12 12" 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" - M12 16" 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

Table Test

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
Spindle 6"8"10"12"14"16"
D-3 0603020 0603020 1003020 1003020 - -
D-4 0603021 060302110030211003021--
D-5 0603022 0603022 1003022 1003022 1203022 -
D-6- 06030231003023100302312030231203023
D-8 - - 1003024 1003024 1203024 1203024
D-11----12030251203025
Type A American Standard Short Taper A1 & A2 Spindles
Spindle 6"8"10"12"14"16"
A-5 0603010 0603010 1003010 - - -
A-6 0603011 060301110030111003011--
A-8 - - 1003012 1003012 1203012 1203012
A-11----12030131203013
Type L American Standard Long Taper Spindles
Spindle 6" 8" 10" 12" 14" 16"
L-00 0603031 0603031 1003031 - - -
L-0 0603032 0603032100303210030321203032 -
L-1 - - 1003033 1003033 1203033 1203033
L-2--1003034100303412030341203034
Threaded Spindles
Spindle6"8"10" 
1-1⁄2" - 8 0603041 0603041-
1-3⁄4" - 8 0603042 0603042-
2-1⁄4" - 8 0603043 06030431003043
Hardinge 4° Taper Plate
Spindle6"8" 
4° Taper 0604044 0604044
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.