Manufacturer: MITSUHASHI CORPORATION

By supplying power with an impact wrench, the lugs protrude evenly in all directions, resulting in a high-precision shaft that can chuck the core without any runout.

Drawing

① Hexagonal screw head for wrench (a)
② Hexagonal screw head for wrench (b)
A: Shaft length AA: Body end to lug AC: Bearing to body B: Shaft length BB: Body end to lug BC: Bearing to body
D1: Body outer diameter D2: Bearing section diameter D3: Bearing section diameter D4: Lug tension diameter D5: Core inner diameter D6: Core outer diameter D7: Roll diameter
L: Total length L1: Body section length L2: Lug to lug L3: Distance between bearings L4: Roll width L5: Core width L6: Body end to sheet center

Features

• It can be used in ultra-high vacuum regions down to ^10⁻⁶ Pa .
• We use carefully selected ingredients.
  The components used are made of materials with low gas emission.
  Metals: SUS303, SUS304, SUS440C, A2017
  Resin: Vespel SP-1, Ketron PEEK, Viton Fluororubber
  : Lubricant: Vacuum grease (Varielta SUPER IS/V, NOK)
• This design minimizes dust generation.
  To suppress dust generation during core attachment and detachment, a roller unit is embedded in the outer diameter of the body. To suppress dust generation from inside the shaft when the lugs expand and contract, and to prevent parts from seizing, the sliding parts are made of a combination of metal and resin.
• We are removing residual foreign matter from the parts.
  Before assembly, all parts are degreased and cleaned, then ultrasonically cleaned, and finally dried in a dryer to remove any remaining moisture. Assembly is carried out in a clean booth, with meticulous care taken to prevent any oil, dirt, or other contaminants from adhering to the parts.