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Self-Centering Series 342 3 Jaw Universal Iron Body Chucks

Series 342 Medium-Duty Value Line Flatback, D and A Type Mounting: Sizes 5″ thru 25″

  • High value and lower cost
  • One year warranty
  • Standard chuck sizes 5″ thru 25″
  • Maximum .003″ TIR using nominating pinion – thru 12″
  • .001″ repeatability using nominating pinion – thru 12″
  • Two-piece American Standard tongue and groove jaws
  • Hardened scroll
  • Three hardened pinions
  • Semi steel bodies
Self-Centering 3-Jaw Universal Iron Body Chucks
Chuck SizeFlatback
Chuck No.
Type D SpindleType A Spindle
SizeChuck No.SizeChuck No.
5"0534-2000--------------
6"0634-2000D-40634-20D4A-40634-20A4
6"--------------A-50634-20A5
8"0834-2000D-40834-20D4-------
8"-------D-50834-20D5A-50834-20A5
8"D-60834-20D6A-60834-20A6
10"1034-2000D-51034-20D5A-51034-20A5
10"-------D-61034-20D6A-61034-20A6
10"-------D-81034-20D8A-81034-20A8
12"1234-2000D-61234-20D6A-61234-20A6
12"-------D-81234-20D8A-81234-20A8
16"1634-2000D-81634-20D8A-81634-20A8
16"-------D-111634-2D11A-111634-2A11
20"2034-2000D-82034-20D8A-82034-20A8
20"-------D-112034-2D11A-112034-2A11
25"2534-2000D-82534-20D8A-82534-20A8
25"--------D-112534-2D11A-112534-2A11
25"---------------A-152534-2A15
Consult factory for chucks sizes larger than 25".
Dimensions for Universal Flatback Mounting Chucks with Two-piece Jaws (in/mm)
Chuck SizeB1B3B4B5B6B7B9B10B15Max RPM
5"/1254.92"/1253.74"/951.18"/30.157"/44.25"/108(3) M-83.94"/1001.65"/422.28"/583000
6"/1606.30"/1604.92"/1251.77"/45.197"/55.51"/140(6) M-104.53"/1151.97"/502.56"/652500
8"/2007.87"/2006.30"/1602.56"/65.197"/56.93"/176(6) M-105.00"/1272.05"/522.95"/752000
10"/2509.84"/2507.87"/2003.15"/80.197"/58.81"/224(6) M-125.59"/1422.44"/623.15"/801600
12"/31512.40"/31510.23"/2603.94"/100.236"/611.26"/286(6) M-166.53"/1663.15"/763.54"/901200
16"/40015.75"/40012.99"/3305.12"/130.236"/614.25"/362(6) M-167.32"/1863.38"/863.94"/1001000
20"/50019.68"/50016.53"/4208.26"/210.236"/618.03"/458(6) M-168.07"/2053.54"/904.53"/115800
25"/63024.80"/63021.45"/5459.92"/252.275"/723.07"/586(6) M-168.68"/220.53.36"/85.55.31"/135800
Note: Dimensions are for flatback chucks; for D or A mounted chucks dimension B15 will vary.
(1) Model No's. 2034-2A11 and 2534-2A11 have a 6.5" thru-hole