Mine Drilling Tool Bearing Ball for Mining Machinery

Product Detail

Mine Drilling Tool Bearing for Mining Machinery

Mine drilling tool bearings are important components of mining machinery, mine drilling tool bearings could be divided into main thrust ball bearings, angular-contact ball bearing and so on. And the angular-contact ball bearings are used for drilling platform and switched reluction motor.Yusion supplies S-2 Rock Bit balls apply for angular-contact ball bearings for mining machinery. The ball surface has a smooth ground and polished finish.They provide good wear characteristic and good services for severe shock loads.

     

 

 

            

 

SPECIFICATION

Inch	1/4”-2-1/2”
Hardness	HRC55-HRC59
Diameter	6.35mm-63.5mm
Grade	G40-G200
International Standard	ASTM A681

MATERIAL ANALYSIS

S-2 Tool Steel(Rockbit) Balls are manufactured to the following chemical analysis: 

Chemical Analysis
Carbon	0.47% to 0.55%
Manganese	0.30% to 0.50%
Silicon	0.90% to 1.10%
Molybdenum	0.30% to 0.60%
Phosphorus	0.030% maximum
Sulphur	0.030% maximum
Vanadium	0.50% maximum

MECHANICAL PROPERTIES

Hardness as measured on parallel flat surface is Rockwell “C” 55-58.

Ball of special hardness are available upon request.

Tensile strength	310,000psi
Yield strength	290,000psi
Elongation in two inches	7%
Reduction in area	25%
Modulus of elasticity	30,000,000psi
Density	0.283lbs./cu.in

PRODUCTION PROCESS

 

QUALITY INSPECTION

 

PACKING

Firstly we pack the balls in cartons.

1.For each carton,the size is : Length:160mm  Width:130mm Height:65mm

2.we pack our balls using wooden pallet(Plywood) in our export business

3.Put the plastic paper in the pallet(waterproof) at first, then put the ball carton into the pallet ,and fix the pallet.

4.The size of wooden pallet: Length:840mm  Width:780mm  Height:750mm

Generally, if you don’t want packing with our company’s logo & name and our package, we offer neutral packing and can according to your requirements.