Taian Xinyuan Precision Steel Ball Manufacturing Co.,Ltd

Main Products:
Carbon steel ball
Stainless steel ball
Chrome steel ball
Flying saucer ball
Copper ball
Ceramic ball

BALL GRADES
Grade	Diameter Tolerance Per Batch		Sphericity		Maximum Surface Roughness
	Inch	m	Inch	m	Micro Inch	m
5	0.00001	0.25	0.000005	0.127	0.8	0.02
10	0.00002	0.51	0.000010	0.25	1.0	0.025
25	0.00005	1.27	0.000025	0.63	1.5	0.038
50	0.0001	2.5	0.00005	1.27	3.0	0.075
100	0.0002	5	0.0001	2.5	5.0	0.125
200	0.0004	10	0.0002	5	8.0	0.2

Grade	Application
G5, G10	High precision bearings, Gauges
G25	Precision bearings
G100	Bearings, drawer
G200	Soap dispensers, Body jewellery
G500	Automotive seat slides, Bicycles
G1000	Castors, Unground bearings
G2000	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.
Packing:
Firstly we pack the balls in cartons.
One type inside has two cartons.
for each carton, length: 22cm width:17cm height:10cm
Another type inside has four cartons:
for each carton, length: 15cm width:12cm height:10cm
Then, we pack our balls using wooden pallet in our export business:
Put the plastic paper in the pallet(waterproof).
the size of wooden pallet: 860mmm 800mm 750mm
Put the ball carton into the pallet, and fix the pallet.
Hooping the pallet tightly using the steel rods
about the outside carton:
for each carton, length: 37cm width:25cm height:11cm
Generally, if you don't want packing with our company's logo and name, we offer neutral packing.

how to Inquire?
When ordering balls, please specify the following:
Nominal ball diameter.
Type of material.
Precision grade.