800.253.0820
3977 Emerald Dr., Kalamazoo, MI 49001
Self-Centering Universal Steel Body SETRITE Chucks
Untitled Document

253 Series - 3 Jaw • 263 Series - 6 Jaw
Direct Replacement for the Buck Ajust-Tru® Early Design

• Two-year warranty
• Precision manufactured for adapter mounting
• .0005 TIR repeatability on duplicate parts 
• Steel body on sizes 6" thru 15"
• Semi-steel body on the 5" chucks
• 4 adjusting screws - 5", 6", 8", 10", 12"
• 8 adjusting screws - 15"
• Sizes 5" to 15"
• Nitride hardened scroll
• Hardened pinion
• Two-piece American standard tongue and groove jaws on chuck sizes 6" thru 15"
• 5" chucks equipped with one set of solid I.D jaws and one set of solid O.D. jaws
• One pinion - 5", 6", 8", 10", 12"; 3 pinions - 15",
• Durability — double the contact surface of the master jaw and body versus our competitors' chucks

See complete product details in our latest catalog >>

Table Test

Self-Centering Universal Steel Body SETRITE® Chuck
Chuck Size (in) Model Number Approx. Weight (lbs)
Maximum RPM*
253 Series - 3 Jaw
5 0515400 14 5000
6 0625300 26 4900
8 0825300 46 4200
10 1025300 71 3300
12 1225300 112 2300
15 1525300 146 2000
263 Series - 6 Jaw
5 0516400 15 3600
6 0626300 27 3500
8 0826300 49 3000
10 1026300 76 2400
12 1226300 116 2000
15 1526300 205 1500
*Eccentric adjustment of chuck on mounting plate to obtain required TIR on the workpiece may result in unacceptable vibration at these speeds. Reduce RPMs accordingly. Jaws must be fully engaged in the chuck body.

Table Test

Jaws shown in O.D. position
Dimensional Data for Series 253 & 263 Adapter Mounting Self-Centering Chucks
Chuck Size  Gripping Capacity
 A B*CDEFG1G2HKMin.**Max.
5" 5.00" 2.375"¨ 1.30" 2.84"   .66" 4.44" - 5.00" 1/4" 1/16" 4"
6"6.31"3.125"1.81"2.88"1.59"0.69"5.34"-7.31"1/4"3/16"5"
8" 8.25" 4.750" 2.25" 3.25" 1.75" 0.75" 7.50" - 9.25" 3/8" 3/16" 6-1⁄2"
10"9.85"6.375"3.00"3.63"2.13"0.81"-4.38"11.00"7/16"3/16"8"
12" 12.20" 7.906" 4.06" 4.00" 2.28" 0.84" - 5.25" 14.00" 1/2" 3/4" 10"
15"15.74"11.7812"4.56"5.13"3.16"1.13"-6.75"17.00"5/8"1-1⁄2"13"
*Tolerance - .000/+.001 **6-Jaw Chuck minimum grip, consult factory Recess can be opened up to 2.745" - 2.755"
Soft top jaws shown in our pdf catalog. ® Ajust-Tru is a registered trade mark of Illinois Tool Works.

Table Test

Mounting Plates For “SETRITE”® 3 Jaw and 6 Jaw - 253 & 263 Series Chucks
PBA offers a full line of Mounting Plates type "D", "A", "L" and threaded plates for the "SETRITE"® Chucks. PBA Mounting Plates are interchangeable with other popular adjustable universal style Chucks.
Mounting plates are precision machined to suit the spindle nose of your machine. For maximum accuracy of "SETRITE"® mounting plates, mount plate on machine spindle nose, place a dial indicator on the chuck side face of the adapter close to the mounting holes, rotate the adapter and if the total indicator reading (TIR) exceeds .0005" take a light truing cut across the face of the mounting plate.
Type D Mounting Plates "Camlock"
Spindle 6"8"10"12"15"  
D-3 0605020 0805020 - - - - -
D-4 0605021 08050211005021----
D-5 0605022 0805022 1005022 - - - -
D-6- 0805023100502312050231505023--
D-8 - - 1005024 1205024 1505024    
D-11---12050251505025  
Type A American Standard Short Taper A-1 & A-2, Spindles
Spindle 6"8"10"12"15"  
A-4 0605009 - - - - - -
A-5 0605010 08050101005010----
A-6 - 0805011 1005011 1205011 - - -
A-8--100501212050121505012 -
A-11 - - - - 1505013    
A-15------ 
Type L American Standard Long Taper Key Drive Spindle
Spindle 6"8"10"12"15"  
L-00 0605031 0805031 1005031 - - - -
L-0 0605032 080503210050321205032---
L-1 - 0805033 1005033 1205033 1505033    
L-2--100503412050341505034  
L-3 - - - - 1505035    
For Hardinge® and Elgin Lathe
Spindle5"6" 
4° Taper 0505044 0605044
2-3⁄16"-10 Threaded 0505045 0605045
Also available, plates for rotary tables
Threaded & Blank Mountings for SETRITE™ Chucks
Spindle5"6"8"10"12" 
Blank 0505040 0605040 080504010050401205040
1-1⁄2"-8 0505041 0605041 0805041--
1-3⁄4"-8 0505042 0605042 0805042--
2-1⁄4"-8 0505043 0605043 0805043--
2-3⁄8"-6- 0605046 0805046--
*Threaded adapter plates and special plates are available upon request.
"SETRITE" chucks and adapters are shipped unassembled unless ordered assembled at extra charge.
When ordering special adapters give make, model number, size, and spindle dimensions of machine.
For standard spindle dimensions, see our pdf catalog.