High Performance Hardened Steel Balls High Hardness Linear Ball Bearings

Basic Information
Place of Origin: China
Brand Name: JN
Certification: SGS ISO
Model Number: 3mm 4mm 5mm 10mm
Minimum Order Quantity: 1 KG
Packaging Details: Ploy bag+25kg carton box+1000kg wooden box or 250kg steel drum or according to customer requirement
Delivery Time: 7-15 days
Payment Terms: T/T, Western Union, MoneyGram,Paypal, L/C, D/A, D/P
Supply Ability: 50 Tons per Month
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Produce Name: Ball Bearing Balls Grade: G10--G1000
Hardness: HRC60-HRC65 Feature: Corrosion Resistance/ Anti-wear
Tolerance: +/-0.25um Application: Bearing Accessories/ Merchanical Parts
High Light:

ball bearing steel ball


small round metal balls

High Performance Hardened Steel Balls High Hardness Linear Ball Bearings

3mm 4mm 5mm 10mm AISI5200 304 Solid Stainless Steel Balls



All of the above are common ways of describing the most widely used material for the manufacturer of precision steel balls. It is a through hardening, fine grain, Martensitic steel. Because of its high hardness and fine grain structure, this material can be finished to an extremely fine quality.



GCr15 bearing steel is a high carbon chromium bearing steel with less alloy content,
good performance and the most widely used. After quenching and tempering,
it has high and uniform hardness, good wear resistance and high contact fatigue performance.
The steel has the characteristics of medium plasticity, low cutting performance, poor welding performance,
large sensitivity to white spot and temper brittleness
Chrome Bearing Steel Balls Chemical composition 
%C %Si %Mn %P %S %Cr %Ni %Mo




0.95-1.05 0.15-0.35 0.25-0.45 0.025 max 0.025 max 1.40-1.65 0.30 max 0.08 max

0.20 max





Technical data
Property Type U.o.M. Values U.o.M.



Hardness Mechanical [HRC] 60 - 66 -



Ultimate compressive strength Mechanical [MPa] 2500 - 2600 [psix10^3]

362 - 377


Service temperature Thermal [ºC] -60 / 150 [ºF]

-76 / 302


Bearing Ball Application
Precision bearings, automotive components (brakes, steering, line shaft), ball transfer units, linear ball bearings,
bike and motor-bike components, appliances, quick couplings, machine tool, lock mechanisms, conveyor belts,
skates, ball pens, pumps, castors, measurement instruments, valves, recirculating balls.
Utilized in browning, polishing and milling machineries
High Performance Hardened Steel Balls High Hardness Linear Ball Bearings
Payment and Shipping
Our payment term is flexible ,we could disscuss and come to a agreed payment for both of us .
Shipment could by express (order quantity under 100kg steel balls ) ,by air (for urgent need ) ,by sea (quantity above 100kg).
If our customer have their own shipping agent in China ,we could ship the steel balls to theiry agent warehouse.
High Performance Hardened Steel Balls High Hardness Linear Ball Bearings
Company Information

Shandong Jinnai is a professional manufacture and supplier of steel balls and ball related products in China .


We offer solid ball size from 0.1mm-500mm stainless steel ball (201, 304, 316, 420,420C,430,440),


chrome steel ball,carbon steel ball,copper/brass balls, plastic ball,glass ball,tungsten carbide ball,


flying saucer ball,ceramic ball,aluminum balls for 15 years experiences.


Our products are widely used for bearings,valves,sprayers, sliders, perfume bottles, nail polish,


motor, switch, electric iron, washing machines, refrigerators, air conditioners, medicinal materials,


auto parts,instrument,bottles,pulley, precision machinery, etc.


Sincerely hope to cooperate with you !




Q1, Can i have a sample order?


A: Yes, we welcome your sample order to test and check quality. Mixed samples are acceptable.


Q2, What about the production time?


A: Sample need usually within 3 days, mass production time needs 5 days to 20days for order quantity more than 10 tons.


Q3, Do you have any MOQ limit for stainless steel balls?


A: Low MOQ generally is 1kg, or 100pcs.


Q4, How do you ship the goods and how long does it take to destination?


A: We usually ship by DHL, UPS, Fedex or TNT. It usually takes 3-5days to destination. Airline and sea shipping also optional.


Q5, How to proceed an order?


A: Firstly, pls let us know your requirements or application.


Secondly, we quote based on your requirements or our suggestions.


Thirdly, you confirm the sample and place deposit for formal order.


Fourthly, we arrange the production.


Q6, Is it ok to print my logo on the product?


A: Yes, pls informe us formally before our production and confirm the design firstly based on our sample.


Q7, what is the package?


A: Usually, we pack balls with plastic bag in carton boxes, then in plywood pallet, also can be customized.


Contact Details

WhatsApp : +8615910105035