Typical applications for these grades are as follows,
High precision bearings, Gauges
Soap dispensers, Body jewellery
Automotive seat slides, Bicycles
Castors, Unground bearings
Agitators, Decorative uses, Weights, Ballast
Useful Terms and Definitions used to describe Precision Balls.
Nominal Ball Diameter - The diameter value that is used for the general identification of a ball size.
Single Ball Diameter - The distance between two parallel planes tangential to the actual ball surface.
Diameter Tolerance per Batch - The allowed difference between the smallest measured ball diameter and the largest ball diameter within the same batch or lot.
Batch or Lot - A definite quantity of balls manufactured under conditions presumed to be uniform and which is considered an entity.
Sphericity - A measure of roundness expressed as the difference between the measured roundness of a ball and a perfectly round ball.
Surface Finish or Roughness - A measure of the texture of a surface. It is quantified by the vertical deviations of the actual surface from it's ideal form, if these deviations are large the surface is rough; if they are small the surface is smooth.
Hardness - A measure of resistance to penetration as determined by specific methods, usually Rockwell or Vickers Hardness.
Diameter Tolerance per Batch
Maximum Surface Roughness
1. Pls tell me the specific requirment, such as Size/ Grade/ Material/ Quantity(6.350mm, carbon steel, G1000, 500kgs), then i'll give you quote.
2. About certification, we successfully passed ISO9001:2008 and ROSH.
3. About steel ball, we can product 0.4mm-150mm, the materials is Stainless steel ball / Chrome steel ball / Carbon steel ball / Glass ball, the precison grade is from G10-G1000.