J-4 Parts


Themac J-4 Parts Diagram

Standard Assembly
  • (Part #442) Belt
  • (448) Belt
  • (603P) Case, Carrying
  • (327) Dresser, Diamond
  • (408) Guard, Belt
  • (416) Guard, Wheel
  • (324) Nib. Diamond Dresser
  • (110) Nut, #3 Clamp
  • (161A) Pin, Clamp Head Lock
(450) Motor Assembly, 115 Volt (or 220 Volt)
  • (451S) Arm, w/fan & field with coils Set 115V (or 220 Volt)
  • (126) Bearing, Precision Ball
  • (1481) Bearing, Spindle Tube
  • (439) Brush, Carbon w/shunt
  • (1156) Brushing, Cord
  • (456) Cap, Etched
  • (127) Cap, Etched
  • (458) Case, Center
  • (459) Case, Commutator End
  • (460) Case, Pulley End
  • (1906) Connector, Lead
  • (463) Cord w/Switch & Plug
  • (168) Head, #2 Clamp-Assembled
  • (469) Holder, Brush Cap / Brush Cap
  • (1126) Label
  • (471) Nut, Field Lock
  • (171) Nut, 1/4 - 28 R.H. Hex.
  • (172) Nut, 3/8-24 L.H. Hex.
  • (177) Plate, Clamp
  • (113) Pulley, #1 – 55/64” Dia.
  • (114) Pulley, #2 – 1 7/64” Dia.
  • (115) Pulley, #3 – 1 47/64” Dia.
  • (116) Pulley, #4, 1 63/64” Dia.
  • (412) Pulley, #5 - 2 13/16" Dia.
  • (197) Ring, Retaining
  • (1423) Screw, 4-40 X 3/16” Cad.
  • (1188) Screw, 10-24 X 1” Fil. Hd.
  • (486) Screw, 10-24 X 1" Oval Hd.
  • (186) Screw, 10 - 24 X 1 1/2" Oval Hd.
  • (485) Screw, 10 - 32 X 1/8" Set
  • (188) Screw, 1/4, 20 X 5/8" Flat Hd.
  • (181) Screw, Sq. Hd. Mtg. 1/4 - 28
  • (135) Spring, 6Z Tension
  • (482) Stud, 3: Case
  • (662) Terminal, Ground
(425) Spindle Assembly
  • (426B) Bearing, Precision Ball
  • (427) Cap, Etched
  • (495) Ring, Retaining
  • (634) Spindle, Grinding
  • (435) Spring, 7Z Tension
  • (473A) Tube, Grinding Spindle
Standard Accessories
  • (497) Chuck, 1/4" w/397 Sleeve & Collet
  • (405) Collar, 3/4 X 1/2” Wheel
  • (443) Collar, 1 X 1/2” Wheel
  • (605) Collar, 2 X 1/2" Wheel
  • (406) Collet, 1/8"
  • (171) Nut, 1/4 - 28 R.H. Hex.
  • (130) Nut, 3/8 - 24 R.H. Hex.
  • (912) Nut, 1/2 - 24 R.H. Hex.
  • (397) Sleeve, Chuck
  • (424) Spindle, 2” Ext. w/Col.. & Nut
  • (202) Wheel, 1/4 X 1/4 X 1/8" Mtd.
  • (203) Wheel, 1/2 X 1/4 X 1/8" Mtd.
  • (267) Wheel, 1 X 1/4 X 1/4" Mtd.
  • (226) Wheel, Grinding 1 1/2 X 1/4 X 1/4”
  • (268) Wheel, Grinding 2 1/2 X 1/2 X 1/2"
  • (266) Wheel, Grinding 4 X 1/2 X 1/2