Needle and roller

Product Description

1) Needle FBX provides whole range of needles, the needle material is bearing steel, the hardness is HRC*0～*5, the surface roughness Ra is not more than 0.2. 2)Cylindrical Roller The dimensional range for FBX cylindrical roller: Dw:3～*0, Lw: 5～*0; the roller material is GCr*5, the hardness is HRC*0～*5; and the hardness is HRC*0～*4 the material is GCr*5SiMn, ; surface roughness Ra is not more than 0.2. The cylindrical dimension tolerance, group diamerter and length vibration, corner dimension and tolerance, outline tolerance and surface roughness are all in accordance with national standdards GB/T***1. Examples of mark: Cylindrical Roller 5 x 8 Ⅲ *3/**5. This is standing for the diameter is 5, the length is 8, tolerance grade is G3, the average diameter vibration is *3 μ m, group average length of vibration is **5 μ m. 3)Pin FBX also mass-produces piston pin and other pin for powertool. It is normally made of bearing steel. The precision, surface hardness and roughness are all in accordance with the related industrial standards, or up to user’s requirements. The marking method for pin refers to the cylindrical roller. It uses “Pin” directly for the type representation, then there is” Diameter * Length”. Example of mark: Pin5*8