Chrome Steel Ball
DESCRIPTION
Precision Chrome Steel Balls – Bearing Balls for High‑Wear Applications
Product Overview
Specifically, JSW supplies precision chrome steel balls manufactured from high‑carbon chromium bearing steel (GCr15 / AISI 52100 / SUJ2 / 100Cr6). These precision chrome steel balls are widely used in ball bearings, linear motion guides, automotive steering assemblies, CV joints, pumps, valves, and precision instruments. The material has a typical chemical composition of C: 0.98–1.10%, Cr: 1.40–1.65%, Mn: 0.25–0.45%, Si: 0.15–0.35%. Uniformly processed through cold heading, heat treatment, and precision grinding, every batch of chrome steel balls offers consistent hardness, roundness, and surface finish. For more about our company, please visit our about us page.
Key Technical Specifications
Material: Chrome ( 100Cr6 & 100CrMn6 )
Diameter:0.2mm – 250mm（Professional production line 4.763mm 3/16\”,7.938mm 5/16\” ,9.525mm 3/8\”and so on )
Grade: G5 / G10 / G16 / G20 / G28 / G40 / G100 / G200 / G500 / G1000 / G2000 according to ISO, DIN, or AFBMA standard
View the chrome-steel-ball Weight chart
| A.F.B.M.A. STANDARDS(U.S.A) | ||||||||||
| AFBMA
GRADES |
ROUNDNESS | LOT DIAMETER
VARIATION |
BASIC DIAMETER
TOLERANCE |
MAX.
INCREMENTS |
SURFACE
RCUGHNESS |
|||||
| INCHES | μm | INCHES | μm | INCHES | μm | INCHES | μm | INCHES | μm | |
| 3 | .000003 | 0,08 | .000005 | 0,13 | ±.00003 | 0,76 | .000010 | 0,25 | .5 | 0,012 |
| 5 | .000005 | 0,13 | .000010 | 0,25 | ±.00005 | 0,27 | .000010 | 0,25 | .8 | 0,020 |
| 10 | .000010 | 0,25 | .000020 | 0,51 | ±.0001 | 2,54 | .000010 | 0,25 | 1.0 | 0,025 |
| 16 | .000016 | 0,38 | .000032 | 0,76 | ±.0001 | 2,54 | .000010 | 0,25 | 1.0 | 0,025 |
| 24 | .000024 | 0,63 | .000048 | 1,27 | ±.0001 | 2,54 | .000010 | 0,25 | 2.0 | 0,050 |
| 48 | .000048 | 1,27 | .000096 | 2,54 | ±.0002 | 5,08 | .000050 | 0,12 | 3.0 | 0,076 |
| 100 | .0001 | 2,50 | .0002 | 5,08 | ±.0005 | 12,70 | .0001 | 2,54 | 5.0 | 0,120 |
| 200 | .0002 | 5,08 | .0004 | 10,20 | ±.001 | 25,40 | .0002 | 5,08 | 8.0 | 0,203 |
| 500 | .0005 | 12,70 | .001 | 25,40 | ±.002 | 50,80 | .0005 | 12,70 | – | – |
| 1000 | .001 | 25,40 | .002 | 50,80 | ±.005 | 127,00 | .001 | 25,40 | – | – |
| DIN5401(GERMAN STANDARDS) | ||||
| DIN 5401
GRADE |
ROUNDNESS
μm |
LOT DIAMETER
VARIATION μm |
BASIC DIAMETER
TOLERANCE μm |
GAUGE INTERVAL
μm |
| I | 0,25 | 0,50 | ±10,25 | 0,50 |
| II | 0,50 | 1,00 | ±10,50 | 1,00 |
| III | 1,00 | 2,00 | ±11,00 | 2,00 |
| IV | 2,00 | 4,00 | ±14,00 | 4,00 |
| V | 25,00 | 50,00 | ±75,00 | 50,00 |
| VI | – | 400,00 | ±200,00 | – |
| APPROXIMATE EQUIVALENT GRADES
BETWEEN ISO 3290,AFBMA,DIN |
|||||||
| GRADES | AAAA | AAA | AA | A | B | C | ∅mm |
| ISO3290 | 5 | 10 | 16 | 28 | 40 | 100 | up to 3 included |
| 10 | 16 | 28 | 40 | 100 | from 3 to 6 included | ||
| 10 | 16 | 28 | 40 | 100 | 200 | from 6 to 10 included | |
| 16 | 20 | 28 | 40 | 100 | 200 | from 10 to 20 included | |
| 28 | 40 | 100 | 200 | from 20 to 30 included | |||
| 40 | 100 | 200 | from 30 to 50 included | ||||
| 40 | 100 | 100 | 200 | over 50 | |||
| AFBMA | 5 | 10 | 16 | 24 | 48 | 100 | up to 3 included |
| 10 | 16 | 24 | 48 | 100 | 100 | from 3 to 6 included | |
| 10 | 16 | 24 | 48 | 100 | 200 | from 6 to 10 included | |
| 16 | 16 | 24 | 48 | 100 | 200 | from 10 to 20 included | |
| 24 | 48 | 100 | 200 | 300 | from 20 to 30 included | ||
| 48 | 48 | 100 | 200 | 300 | from 30 to 50 included | ||
| 48 | 100 | 100 | 200 | 300 | over 50 | ||
| DIN | class – | class I | class II | class III | class IV | – | up to 3 included |
| – | I | II | III | IV | – | from 3 to 6 included | |
| I | II | III | – | IV | – | from 6 to 10 included | |
| – | III | III | IV | – | – | from 10 to 20 included | |
| II | – | III | IV | – | – | from 20 to 30 included | |
| – | – | III | IV | – | – | from 30 to 50 included | |
| – | – | III | IV | – | – | over 50 | |
JIANGSU WALLONG-HSIN MACHINERY ENGINEERING CORPORATION LTD has created a complete range in order to offer advanced solutions and an outstanding technical services. The application range includes:
*High quality Ball Bearings components
*Linear systems,Ball bearing slides
*Free Wheels and casters,rail wheels
*Ball transfer units,air cargo and conveyor
*Stainless steel and tungsten carbide ball point pens
*Various types of valves for liquids and gases,etc.
*CV Joints,hydraulic motors and oilers
*Safety belt balls,car seat guides balls
*motor bikes and bicycles ball parts
*Furniture fitting,drawer slide balls
*Coconut grinding balls, coffee milling balls
*Cosmetic balls,nail polish balls
*Pump balls
