Общий каталог TooTool - страница 35

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Technical Information for XN Type Threading XN Type Threading Code System HJ American Buttress (45° Clearance Flank Leading): XNTB-B Inserts •PULL-type Insert vs. Toolholder Orientation XN Type Threading Code System chuck chuck externalinternal anti-clockwise rotation anti-clockwise rotation XNTB-2RB XNTB-3RB XNTB-4RB insert notch XNTB-2LB45° clearanceXNTB-3LBflank of theXNTB-4LBthread being45° clearance flankof the thread beingthe leading flank1 sealing] surface initoolholder Insert Thread Additional Insert Industry Insert Definition of Additional CarbidenamestandardinformationsizeThreadhandInsertinformationgradesIdentification the leading flank XNTB-2RBXNTB-3RB insertnotch sealingsurfacein barXNTB-4RB Insert Name Thread Standard Additional InformationB XNTB-2LB Internal Buttress External Buttress XNTB-3LB 45° clearance flank leading 45° clearance flank leading 45° clearance flank leading XNTB-4LB B = Buttress F = Fine pitch S = Stub Acme XN: Top clamping seriers A = Acme D = APIorNPT J = UNJthread C = Cresting P = Positive rakeT = 60° V threadW = 55° V WhitworthK = Fine pitch, psoitiveU = Utility** A —^ .010" infeed .010" I nose radiumD \A t 007'.0052"chip loac.0039"chip loachip load .0012"chip load Insert Size Industry Thread Identification Insert Hand3 G maximum depth with B-style insert t 065 15° infeed angle XNTB-B insert 0° infeed angle \ TT ro 55 Position indicates API or drilling 066 Inset Size S (mm) T (mm) industry form designation feed direction feed direction 1 2.54 2.54 (e.g.,10RD, 8RD, .038)25.563.81or Controlled root radius threadinginserts indicate the root radius inR: right handL: left hand 3 8.74 4.95 001" increments(NJ, NJF, NJP, NJK) 4 11.51 6.48 or M indicates metric ISO thread Insert D( inch ) A nose radius pitch based on(inch)( inch )maximum radius 5 17.48 9.65 6 11.51 9.73 XNTB-2 0.133 0.024 0.002-0.004 16-20 TPI 8 7.93 11.13 XNTB-3 0.171 0.031 0.005-0.008 8-16 TPI XNTB-4 0.218 0.049 0.008-0.012 4-6 TPI NOTE: For balanced chip load, 15° infeed angle is suggested. Definition of Insert Additional Information Carbide grades @ Internal Threading Limitations internal threading limitations internal threading limitations XNTB-2A Buttress threading inserts XNTB-3 and XNTB-4A Buttress threading inserts •Threads per inch or pitch TPI nominal thread size minimum minordiameter (inch) TPI nominal thread size minimum minordiameter (inch)81-3/41.6004*2-7/82.575 (for metric) I = Internal thread M = Multiple tooth•"A” or “B” type ButtressE = External threadC = Coarse pitch(used only if internalD = DrysealTTIP30TTIM45TTIS30 10 1-5/8 1.505 5 2-3/4 2.510 insert and external thread 12 1-1/ 2 1.400 6 2-3/8 2.175 •Taper per foot — API forms are different) 16 1-1/4 1.175 8 2-1/8 1.975 threads 20 1-1/16 1.002 10 1-7/8 1.755 12 1-5/8 1.525 16 1-1/2 1.407 20 1-7/16 1.378 * XNTB-4B insert only.