52100 Steel Ball 4.763mm Bearing Steel Ball

52100 steel ball 4.763mm bearing steel ball1. High hardness, through hardening, fine grain and martensitic steel.2. International standard: 100Cr6 / aisi52100 / 1.3505 / 100C6 / 534A99 / 9Ch1 / Gcr15 / Suj2.3. Application:Precision bearings, automotive components (brakes, steering, line shaft&r

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52100 steel ball 4.763mm bearing steel ball

1. High hardness, through hardening, fine grain and martensitic steel.

2. International standard: 100Cr6 / aisi52100 / 1.3505 / 100C6 / 534A99 / 9Ch1 / Gcr15 / Suj2.

3. Application:

Precision bearings, automotive components (brakes, steering, line shaft), bicycle, agitators, appliances, sliders, quick couplings, machine tool, lock mechanisms, conveyor belts, skates, pens, pumps, castors, measurement instruments, valves.

Chrome steel ball/bearing steel ball
1. MaterialAISI 52100/ 100Cr6/ 100C6/ SUJ2/ Wks 1.3505
2. Size Range0.6mm-180mm
3. GradeG10-1000
4. Hardness58-65 HRC
5. Characteristic(a)Mainly used in bearings
(b)Good hardness
(c)Good resistance to deformation with excellent wear resistance
(d)Low corrosion
6. MagneticYes
7. ApplicationBall bearings, bicycles, automobile industry
8. Chemical composition

C%Si% Mn%S% P%Cr% Mo%Cu% Al% O%
9.PackingStandard: 10kg or 20kg per carton,1 ton per pallet or as customer required
10.Conditioning dry or oiled
11.Delivery timeStock within a short time or 35 days.
What is SUJ2? Features  Applications Hardness
SUJ2 is a high-carbon chromium bearing steel in conformity with JISG4805.

Non-metal inclusions,which have a harmful effect on the durability of steel, are minimized by the vacuum degassing method.
High load bearingBearings0.8mm-3mm
63-67 HRC
Fine surface finishBall screws
Through-hardness and high loacapacityAutomotive (transmission, steering, anti-lock brakes)3.175mm-30mm
62-67 HRC
Used in demanding
industrial applications
61-67 HRC
Manufacture process of steel balls
Step 1 HeadingBalls blanks are cold headed from rolls of wire.
Step 2 FlashingRolling balls between two hard alloy plates to removes the slight band
and small protrusions.
Step 3 Heat treatHeating balls to a high temperature in furnace and quenching balls in a liquid bath.
Step 4 Rough grindRolling balls between the face of a fixed iron plate and a very hard fire-grit grinding wheel. Then rolled the hardened ground balls between two cast iron plates.
Step 5 CleaningThe final production operation cleans the finished balls and adds a shiny luster.
Step 6 Final
Balls are gauged, visually inspected and subjected to other quality tests to insure
every customer's specifications are achieved.
Step 7 PackagingThe balls are packaged in accordance with customer specifications for shipping.


Type 1 : Plastic bag + box + carton + wooden pallet

Type 2 : Plastic bag + carton + wooden pallet 

Type 3 : Our package :export cartons, steel drums, wooden pallets


1. Established since year 1986, more than 27 years experience and specialized in steel balls manufacturer and ball related products.
2. High precision instruments and technical staffs.
3. Offer the good quality service and product with short delivery times.


1. All the inquiries will be reply within 24 hours

2. For the steel ball, please kindly let us know the size, material, grade and quantity.

3. For the bearing, please kindly let us know bearing type, material, Accuracy Grade/Class, and quantity.

Any futher query, please do contact us anytime.

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