|
Steel Balls |
Bearings |
Sample Product Photos
STEEL BALLS:
We
supply balls and ball products for the following applications:
*
Aerospace
* Valve Manufacture
* Pump Manufacture
* Bearing Industry
* Electronic Industry
* Medical Industry
* Automobile Industry
* Gage & Instrument Manufacture
Ball Size: All Sizes, From 0.05” To 12”
We also modify balls with holes, flats,
etc., by request.
|
GRADE
USAGE GUIDE
A.F.B.M.A.
Ball Grades and Tolerances
|
GRADE |
SPHERICITY |
BASIC
DIAMETER TOLERANCE |
|
3 |
.000003” |
+/-
.00003” |
|
5 |
.000005” |
+/-
.00005” |
|
10 |
.000010” |
+/-
.0001” |
|
25 |
.000025” |
+/-
.0001” |
|
50 |
.000050” |
+/-
.0002” |
|
100 |
.0001” |
+/-
.0005” |
|
200 |
.0002” |
+/-
.0010” |
|
500 |
.0005” |
+/-
.002” |
|
1000 |
.001” |
+/-
.005” |
Hardness Usage
Guide
|
Material |
Rockwell
Hardness |
|
Carbon
Steel |
Rc
60 mm. |
|
Chrome
Steel |
Rc
60-67 |
|
Corrosion
Resisting 440C |
Rc
58-65 |
|
Hardened
Steel 420C |
Rc 52 min. |
|
Corrosion
Resisting 302C |
Rc
25-39 |
|
Unhardened
Steel 304C |
Rc
25-39 |
|
316
|
Rc 25-39 |
|
Aluminum |
Rb 54-72 |
|
Aluminum
Bronze |
Rb 94-98 |
|
Brass |
Rb 75-87 |
|
Bronze |
Rb 75-98 |
|
Tungsten
Carbide |
Ra 84-91.5 |
|
|
Pro-Tech
has access to the most advanced techniques, such as surface
tumbling, protective atmosphere heat-treatment and superlapping.
Our high precision balls are meeting great variety of
customer needs...
|
Grade: |
Material: |
|
| All Grades, From 3 To 1000. |
Chrome Steel |
AISI 52100 |
| |
Carbon Steel |
High Carbon Steel
(AISI 1045 - 85) Low Carbon Steel ( AISI 1010 - 20)
Soft Polish Carbon |
| |
Stainless Steel |
AISI 302 , AISI 304 , AISI 316,
AISI 316L, AISI 420, AISI 440 |
| |
Tungsten Carbide |
|
| |
Titanium Carbide |
|
| |
Nickel Carbide |
|
| |
Cobalt Carbide |
|
| |
Brass |
|
| |
Bronze |
|
| |
Copper |
|
| |
Titanium |
|
| |
Aluminum |
AISI 1100 , AISI 2011 , AISI 2017,
AISI 2024, AISI 6061, AISI 7074,
AISI 7075 |
| |
Ceramic |
|
| |
Various Material |
|
|
